Update repair_wuaueng.dll

.gitignore

@@ -1,4 +1,252 @@
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README.md

@@ -1,102 +1,48 @@
-### [Click here if you are looking for the latest patch files!](https://github.com/zeffy/kb4012218-19/releases)
+# wufuc [![a.k.a. kb4012218-19](https://img.shields.io/badge/a.k.a.-kb4012218--19-blue.svg)](../../tree/old-kb4012218-19) [![download count](https://img.shields.io/github/downloads/zeffy/kb4012218-19/total.svg)](https://github.com/zeffy/kb4012218-19/releases/latest)
 
----
+Disables the "Unsupported Hardware" message in Windows Update, and allows you to continue installing updates on Windows 7 and 8.1 systems with Intel Kaby Lake, AMD Ryzen, or other unsupported processors.
-
-### [Click here for a list of Windows updates supported by this patch](docs/Supported_Updates.md)
-
----
 
 ## Preface
 
-After reading [this article on gHacks](https://www.ghacks.net/2017/03/22/kb4012218-kb4012219-windows-update-processor-generation-detection/), I was inspired to look into these new rollup updates that Microsoft released on March 16. Among other things, the changelog mentions the following:
+The changelog for Windows updates KB4012218 and KB4012219 included the following:
 
 > Enabled detection of processor generation and hardware support when PC tries to scan or download updates through Windows Update.
 
-This update marked the implementation of a [policy change](https://blogs.windows.com/windowsexperience/2016/01/15/windows-10-embracing-silicon-innovation/) they announced some time ago, where Microsoft stated that they would not be supporting Windows 7 or 8.1 on next-gen Intel, AMD and Qualcomm processors. 
+These updates marked the implementation of a [policy change](https://blogs.windows.com/windowsexperience/2016/01/15/windows-10-embracing-silicon-innovation/) they announced some time ago, where Microsoft stated that they would not be supporting Windows 7 or 8.1 on next-gen Intel, AMD and Qualcomm processors. 
 
-That is essentially a giant middle finger to anyone who dare not "upgrade" to the steaming pile of garbage known as Windows 10. Especially considering the extended support periods for Windows 7 and 8.1 still have a few years left, and will be ending in 2020 and 2024 respectively.
+It was essentially a big middle finger to anyone who decides to not "upgrade" to the steaming pile of :poop: known as Windows 10. Especially considering the extended support periods for Windows 7 and 8.1 won't be ending until January 4, 2020 and January 10, 2023 respectively.
 
-There have even been people with older Intel and AMD systems who have been locked out of Windows Update because of these updates (see [#7](/../../issues/7) and [this](https://answers.microsoft.com/en-us/windows/forum/windows8_1-update/amd-carrizo-ddr4-unsupported-hardware-message-on/f3fb2326-f413-41c9-a24b-7c14e6d51b0c?tab=question&status=AllReplies)).
+There have even been people with older Intel and AMD systems who have been locked out of Windows Update because of these updates (see [#7](../../issues/7) and [this](https://answers.microsoft.com/en-us/windows/forum/windows8_1-update/amd-carrizo-ddr4-unsupported-hardware-message-on/f3fb2326-f413-41c9-a24b-7c14e6d51b0c?tab=question&status=AllReplies)).
 
 ## Bad Microsoft!
 
-I started by downloading the update package for my system (in my case, it was `windows6.1-kb4012218-x64_590943c04550a47c1ed02d3a040d325456f03663.msu`)
+If you are interested, you can read my original write up on discovering the CPU check [here](../../tree/old-kb4012218-19).
 
-I extracted it using the command line `expand` tool:
+Basically, inside a file called `wuaueng.dll` there are two functions: [`IsDeviceServiceable(void)`](https://gist.github.com/zeffy/e5ec266952932bc905eb0cbc6ed72185) and [`IsCPUSupported(void)`](https://gist.github.com/zeffy/1a8f8984d2bec97ae24af63a76278694). `IsDeviceServiceable(void)` is essentially a wrapper around `IsCPUSupported(void)` that caches the result it recieves and recycles it on subsequent calls. 
 
-```bat
+My patch takes advantage of this result caching behavior by setting the "hasn't run once" value to `FALSE` and the cached result to `TRUE`.
-md "windows6.1-kb4012218-x64"
-expand -f:* ".\windows6.1-kb4012218-x64_590943c04550a47c1ed02d3a040d325456f03663.msu" ".\windows6.1-kb4012218-x64"
-cd ".\windows6.1-kb4012218-x64"
-md "Windows6.1-KB4012218-x64"
-expand -f:* ".\Windows6.1-KB4012218-x64.cab" ".\Windows6.1-KB4012218-x64"
-```
 
-Great, now there's thousands of files to sort through! Just kidding. Sort of. Maybe. :thinking:
+## How it works
 
-I ended up using PowerShell to sort through and filter out all the binaries that weren't related to Windows Update, like so:
+- On system boot the `wufuc` scheduled task runs under the `NT AUTHORITY\SYSTEM` user.
+- `wufuc` determines what service host process the Windows Update service (`wuauserv`) runs in, and injects itself into it.
+- Once injected, it applies a hook to `LoadLibraryEx` that automatically patches `wuaueng.dll` when it is loaded.
+- Any previously loaded `wuaueng.dll` is also patched.
 
-```powershell
+### Several improvements over my script-based approach:		
-Get-ChildItem -Filter "wu*" -Exclude "*.mui" -Recurse | ForEach-Object { $_.FullName }
+- **No system files are modified!***
-```
+- Heuristic byte signature patching persists over new updates.		
+- C is best language.		
+- No external dependencies except for Microsoft Visual C++ 2015 Redistributable.	
 
-That narrowed it down to 14 files, excellent!
+### How to install/uninstall?
 
-Next, I started comparing these binaries with the ones already on my system with [BinDiff] and [Diaphora]. I eventually got to `wuaueng.dll`, which turned up quite a few interesting new functions:
+Just run move the `wufuc` folder to wherever you want and run `install_wufuc.bat` as administrator.
 
-EA | Name | Basicblock | Instructions | Edges 
+To uninstall run `uninstall_wufuc.bat` as administrator. 
--- | ---- | ---------- | ------------ | -----
-`00000600001DCB9C` | ``CWUTelemetryDownloadCanceledEvent::FireAsimovEvent(void)`` | 36 | 446 | 53
-`00000600001D8F98` | ``CWUTelemetryDownloadCanceledEvent::`scalar deleting destructor'(uint)`` | 3 | 15 | 3
-`00000600001D8FD0` | ``CWUTelemetryDownloadEvent::CWUTelemetryDownloadEvent(void)`` | 1 | 58 | 0
-`00000600001DAEDC` | ``CWUTelemetryDownloadEvent::Init(CReporter *,long,long,ushort const *,long,_GUID,_GUID,CReportingOptionalValues &,AsimovDataInAddition *)`` | 6 | 50 | 8
-`00000600001DAFB8` | ``CWUTelemetryDownloadEvent::InitializeMemebersFromOptionalData(tagOptionalData *)`` | 27 | 91 | 40
-`00000600001D9100` | ``CWUTelemetryDownloadEvent::~CWUTelemetryDownloadEvent(void)`` | 2 | 60 | 1
-`00000600001DC2C4` | ``CWUTelemetryDownloadFailedEvent::FireAsimovEvent(void)`` | 36 | 446 | 53
-`00000600001DB114` | ``CWUTelemetryDownloadStartedEvent::FireAsimovEvent(void)`` | 36 | 446 | 53
-`00000600001DB9EC` | ``CWUTelemetryDownloadSucceededEvent::FireAsimovEvent(void)`` | 36 | 446 | 53
-`00000600001D8C48` | ``CWUTelemetryEventFactory::FireTelemetryEvent(CReporter *,long,long,ushort const *,long,_GUID,_GUID,CReportingOptionalValues &,AsimovDataInAddition *)`` | 11 | 76 | 17
-`00000600001D8574` | ``CWUTelemetryEventFactory::GetTelemetryEvent(CReporter *,long,long,ushort const *,long,_GUID,_GUID,CReportingOptionalValues &,AsimovDataInAddition *,CWUTelemetryEvent * *)`` | 77 | 395 | 127
-`00000600001DEE7C` | ``CWUTelemetryInstallCanceledEvent::FireAsimovEvent(void)`` | 34 | 409 | 50
-`00000600001D8DD4` | ``CWUTelemetryInstallEvent::CWUTelemetryInstallEvent(void)`` | 1 | 57 | 0
-`00000600001DD474` | ``CWUTelemetryInstallEvent::Init(CReporter *,long,long,ushort const *,long,_GUID,_GUID,CReportingOptionalValues &,AsimovDataInAddition *)`` | 6 | 50 | 8
-`00000600001DD550` | ``CWUTelemetryInstallEvent::InitializeMemebersFromOptionalData(tagOptionalData *)`` | 23 | 81 | 34
-`00000600001D8EFC` | ``CWUTelemetryInstallEvent::~CWUTelemetryInstallEvent(void)`` | 2 | 66 | 1
-`00000600001DE67C` | ``CWUTelemetryInstallFailedEvent::FireAsimovEvent(void)`` | 34 | 409 | 50
-`00000600001DF67C` | ``CWUTelemetryInstallRebootPendingEvent::FireAsimovEvent(void)`` | 34 | 409 | 50
-`00000600001D8D9C` | ``CWUTelemetryInstallRebootPendingEvent::`scalar deleting destructor'(uint)`` | 3 | 15 | 3
-`00000600001DD67C` | ``CWUTelemetryInstallStartedEvent::FireAsimovEvent(void)`` | 34 | 409 | 50
-`00000600001DDE7C` | ``CWUTelemetryInstallSucceededEvent::FireAsimovEvent(void)`` | 34 | 409 | 50
-`00000600001CAE68` | ``CWUTelemetryScanFailedEvent::FireAsimovEvent(void)`` | 31 | 416 | 46
-`00000600001CA100` | ``CWUTelemetryScanRetryEvent::FireAsimovEvent(void)`` | 9 | 108 | 13
-`00000600001CA588` | ``CWUTelemetryScanSucceededEvent::FireAsimovEvent(void)`` | 47 | 459 | 73
-`00000600001CB790` | ``CWUTelemetryUnsupportedSystemClickSupportEvent::FireAsimovEvent(void)`` | 5 | 22 | 7
-`00000600001CB9B0` | ``CWUTelemetryUnsupportedSystemClickSupportEvent::`scalar deleting destructor'(uint)`` | 3 | 17 | 3
-`00000600001CB7FC` | ``CWUTelemetryUnsupportedSystemDetectionEvent::FireAsimovEvent(void)`` | 5 | 22 | 7
-`00000600001CB970` | ``CWUTelemetryUnsupportedSystemDetectionEvent::`scalar deleting destructor'(uint)`` | 3 | 17 | 3
-`00000600001CB724` | ``CWUTelemetryUnsupportedSystemNotificationDismissEvent::FireAsimovEvent(void)`` | 5 | 22 | 7
-`00000600001CB9F0` | ``CWUTelemetryUnsupportedSystemNotificationDismissEvent::`scalar deleting destructor'(uint)`` | 3 | 17 | 3
-`00000600001CB6B8` | ``CWUTelemetryUnsupportedSystemNotificationShowEvent::FireAsimovEvent(void)`` | 5 | 22 | 7
-`00000600001CBA30` | ``CWUTelemetryUnsupportedSystemNotificationShowEvent::`scalar deleting destructor'(uint)`` | 3 | 17 | 3
-**`0000060000102F08`** | **``IsCPUSupported(void)``** | **20** | **157** | **31**
-**`00000600000AF3C0`** | **``IsDeviceServiceable(void)``** | **7** | **31** | **8**
-`00000600000832CC` | ``TraceLoggingEnableForTelemetry(_TlgProvider_t const *)`` | 16 | 86 | 23
-`0000060000083210` | ``TraceLoggingSetInformation(_TlgProvider_t const *,_EVENT_INFO_CLASS,void *,ulong)`` | 6 | 50 | 8
 
-We have found culprits, [`IsDeviceServiceable(void)`](https://gist.github.com/zeffy/e5ec266952932bc905eb0cbc6ed72185) and [`IsCPUSupported(void)`](https://gist.github.com/zeffy/1a8f8984d2bec97ae24af63a76278694)!
+To temporarily disable the patch, just go to the Task Scheduler and disable the `wufuc.{ ... }` task, then restart your computer.
 
-## Solutions
+### How do I remove your old patch and use this instead?
 
-Luckily, there are a couple of different ways to kill this CPU check by patching `wuaueng.dll`.
+I've included a utility script called `repair_wuaueng.dll.bat` that will initiate an sfc scan and attempt to automatically revert any changes made to `wuaueng.dll`.
-
-1. Change the value of `dword_600002EE948` (see [this line](https://gist.github.com/zeffy/e5ec266952932bc905eb0cbc6ed72185#file-isdeviceserviceable-c-L7)) which is at file offset `0x26C948`, from `0x01` to `0x00`. This makes `IsDeviceServiceable(void)` skip over the entire CPU check and immediately return the value stored at `dword_600002EE94C`, which by default is 1 (supported CPU). This is my preferred method, as it is a simple 1-byte change. **Note: this offset is only for the KB4012218-x64, for a list of all the patch offsets [click here](docs/Patch_Offsets.md).**
-
-2. Fill all the instructions highlighted [here](https://gist.github.com/zeffy/e5ec266952932bc905eb0cbc6ed72185#file-isdeviceserviceable-asm-L24-L26) in `IsDeviceServiceable(void)` with `nop`s. This will enabling using the `ForceUnsupportedCPU` value of type `REG_DWORD` under the registry key `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Test\Scan` (you will most likely have to create this registry key). You can set this value to `0x00000001` to force unsupported CPUs, or to `0x00000000` to use the default behaviour. You will probably need to restart your PC or restart the `wuauserv` service in order for changes to apply. **This is an internal testing feature used by Microsoft and could be removed in future updates, so I will not be providing xdelta files for it.**
-
-## Caveats
-
-- You have to apply a new patch whenever `wuaueng.dll` gets updated.
-- SFC scan errors will most likely occur as it will believe the integrity of the system has been compromised.
-
-[BinDiff]: https://www.zynamics.com/software.html
-[Diaphora]: http://diaphora.re

docs/Patch_Offsets.md

@@ -1,14 +1,34 @@
+## Windows 7
+
 Hotfix ID | Architecture | wuaueng.dll version | File offset | Original value | Patched value
 --------- | ------------ | ------------------- | ----------- | -------------- | -------------
-KB4012218 | x64 | 7.6.7601.23714 | `0x26C948` | `0x01` | `0x00`
+[KB4012218] | x64 | 7.6.7601.23714 | `0x26C948` | `0x01` | `0x00`
-KB4012218 | x86 | 7.6.7601.23714 | `0x1E4638` | `0x01` | `0x00`
+[KB4012218] | x86 | 7.6.7601.23714 | `0x1E4638` | `0x01` | `0x00`
-KB4012219 | x64 | 7.9.9600.18621 | `0x34D3BC` | `0x01` | `0x00`
+[KB4015546], [KB4015549], [KB4015552], [KB4019264] | x64 | 7.6.7601.23735 | `0x26C948` | `0x01` | `0x00`
-KB4012219 | x86 | 7.9.9600.18621 | `0x2BFA50` | `0x01` | `0x00`
+[KB4015546], [KB4015549], [KB4015552], [KB4019264] | x86 | 7.6.7601.23735 | `0x1E4838` | `0x01` | `0x00`
-KB4015546 and KB4015549 | x64 | 7.6.7601.23735 | `0x26C948` | `0x01` | `0x00`
+[KB4019265] | x64 | 7.6.7601.23775 | `0x26C948` | `0x01` | `0x00`
-KB4015546 and KB4015549 | x86 | 7.6.7601.23735 | `0x1E4838` | `0x01` | `0x00`
+[KB4019265] | x86 | 7.6.7601.23775 | `0x1E4838` | `0x01` | `0x00`
-KB4015547 and KB4015550 | x64 | 7.9.9600.18628 | `0x34D5BC` | `0x01` | `0x00`
+
-KB4015547 and KB4015550 | x86 | 7.9.9600.18628 | `0x2BFA50` | `0x01` | `0x00`
+## Windows 8.1
-KB4015552 | x64 | 7.6.7601.23735 | `0x26C948` | `0x01` | `0x00`
+
-KB4015552 | x86 | 7.6.7601.23735 | `0x1E4838` | `0x01` | `0x00`
+Hotfix ID | Architecture | wuaueng.dll version | File offset | Original value | Patched value
-KB4015553 | x64 | 7.9.9600.18628 | `0x34D5BC` | `0x01` | `0x00`
+--------- | ------------ | ------------------- | ----------- | -------------- | -------------
-KB4015553 | x86 | 7.9.9600.18628 | `0x2BFA50` | `0x01` | `0x00`
+[KB4012219] | x64 | 7.9.9600.18621 | `0x34D3BC` | `0x01` | `0x00`
+[KB4012219] | x86 | 7.9.9600.18621 | `0x2BFA50` | `0x01` | `0x00`
+[KB4015547], [KB4015550], [KB4015553], [KB4019215], [KB4019217] | x64 | 7.9.9600.18628 | `0x34D5BC` | `0x01` | `0x00`
+[KB4015547], [KB4015550], [KB4015553], [KB4019215], [KB4019217] | x86 | 7.9.9600.18628 | `0x2BFA50` | `0x01` | `0x00`
+
+
+[KB4012218]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4012218
+[KB4015546]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015546
+[KB4015549]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015549
+[KB4015552]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015552
+[KB4019264]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4019264
+[KB4019265]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4019265
+
+[KB4012219]: https://www.catalog.update.microsoft.com/search.aspx?q=kb4012219
+[KB4015547]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015547
+[KB4015550]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015550
+[KB4015553]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015553
+[KB4019215]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4019215
+[KB4019217]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4019217

docs/Supported_Updates.md

@@ -1,35 +0,0 @@
-Title | Products | Classification | Last Updated | Version | Size
------ | -------- | -------------- | ------------ | ------- | ----
-March, 2017 Preview of Monthly Quality Rollup for Windows 7 ([KB4012218]) | Windows 7 | Updates | 3/16/2017 | n/a | 93.4 MB
-March, 2017 Preview of Monthly Quality Rollup for Windows 7 for x64-based Systems ([KB4012218]) | Windows 7 | Updates | 3/16/2017 | n/a | 153.9 MB
-March, 2017 Preview of Monthly Quality Rollup for Windows Server 2008 R2 x64 Edition ([KB4012218]) | Windows Server 2008 R2 | Updates | 3/16/2017 | n/a | 153.9 MB
-March, 2017 Preview of Monthly Quality Rollup for Windows 8.1 ([KB4012219]) | Windows 8.1 | Updates | 3/16/2017 | n/a | 121.2 MB
-March, 2017 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems ([KB4012219]) | Windows 8.1 | Updates | 3/16/2017 | n/a | 218.0 MB
-March, 2017 Preview of Monthly Quality Rollup for Windows Server 2012 R2 ([KB4012219]) | Windows Server 2012 R2 | Updates | 3/16/2017 | n/a | 218.0 MB
-April, 2017 Security Only Quality Update for Windows 7 ([KB4015546]) | Windows 7 | Security Updates | 4/8/2017 | n/a | 23.2 MB
-April, 2017 Security Only Quality Update for Windows 7 for x64-based Systems ([KB4015546]) | Windows 7 | Security Updates | 4/8/2017 | n/a | 37.5 MB
-April, 2017 Security Only Quality Update for Windows Server 2008 R2 for x64-based Systems ([KB4015546]) | Windows Server 2008 R2 | Security Updates | 4/8/2017 | n/a | 37.5 MB
-April, 2017 Security Only Quality Update for Windows 8.1 for x64-based Systems ([KB4015547]) | Windows 8.1 | Security Updates | 4/8/2017 | n/a | 15.6 MB
-April, 2017 Security Only Quality Update for Windows 8.1 ([KB4015547]) | Windows 8.1 | Security Updates | 4/8/2017 | n/a | 10.1 MB
-April, 2017 Security Only Quality Update for Windows Server 2012 R2 ([KB4015547]) | Windows Server 2012 R2 | Security Updates | 4/8/2017 | n/a | 15.6 MB
-April, 2017 Security Monthly Quality Rollup for Windows 7 for x64-based Systems ([KB4015549]) | Windows 7 | Security Updates | 4/8/2017 | n/a | 159.9 MB
-April, 2017 Security Monthly Quality Rollup for Windows Server 2008 R2 for x64-based Systems ([KB4015549]) | Windows Server 2008 R2 | Security Updates | 4/8/2017 | n/a | 159.9 MB
-April, 2017 Security Monthly Quality Rollup for Windows 7 ([KB4015549]) | Windows 7 | Security Updates | 4/8/2017 | n/a | 97.6 MB
-April, 2017 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems ([KB4015550]) | Windows 8.1 | Security Updates | 4/10/2017 | n/a | 220.9 MB
-April, 2017 Security Monthly Quality Rollup for Windows Server 2012 R2 ([KB4015550]) | Windows Server 2012 R2 | Security Updates | 4/10/2017 | n/a | 220.9 MB
-April, 2017 Security Monthly Quality Rollup for Windows 8.1 ([KB4015550]) | Windows 8.1 | Security Updates | 4/10/2017 | n/a | 122.4 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows Server 2008 R2 x64 Edition ([KB4015552]) | Windows Server 2008 R2 | Updates | 4/13/2017 | n/a | 160.9 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows 7 for x64-based Systems ([KB4015552]) | Windows 7 | Updates | 4/13/2017 | n/a | 160.9 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows 7 ([KB4015552]) | Windows 7 | Updates | 4/13/2017 | n/a | 98.1 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows Server 2012 R2 ([KB4015553]) | Windows Server 2012 R2 | Updates | 4/13/2017 | n/a | 224.0 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows 8.1 ([KB4015553]) | Windows 8.1 | Updates | 4/13/2017 | n/a | 124.6 MB
-April, 2017 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems ([KB4015553]) | Windows 8.1 | Updates | 4/13/2017 | n/a | 224.0 MB
-
-[KB4012218]: https://www.catalog.update.microsoft.com/search.aspx?q=kb4012218
-[KB4012219]: https://www.catalog.update.microsoft.com/search.aspx?q=kb4012219
-[KB4015546]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015546
-[KB4015547]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015547
-[KB4015549]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015549
-[KB4015550]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015550
-[KB4015552]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015552
-[KB4015553]: https://www.catalog.update.microsoft.com/search.aspx?q=KB4015553

install/COPYING.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

install/install_wufuc.bat

@@ -0,0 +1,140 @@
+@echo off
+title wufuc installer - v0.6
+:: Copyright (C) 2017 zeffy
+
+:: This program is free software: you can redistribute it and/or modify
+:: it under the terms of the GNU General Public License as published by
+:: the Free Software Foundation, either version 3 of the License, or
+:: (at your option) any later version.
+
+:: This program is distributed in the hope that it will be useful,
+:: but WITHOUT ANY WARRANTY; without even the implied warranty of
+:: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+:: GNU General Public License for more details.
+
+:: You should have received a copy of the GNU General Public License
+:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+echo Copyright (C) 2017 zeffy
+echo This program comes with ABSOLUTELY NO WARRANTY.
+echo This is free software, and you are welcome to redistribute it
+echo under certain conditions; see COPYING.txt for details.
+echo.
+
+fltmc >nul 2>&1 || (
+    echo This batch script requires administrator privileges. Right-click on
+    echo %~nx0 and select "Run as administrator".
+    goto :die
+)
+
+echo Checking system requirements...
+
+if /I "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
+    goto :is_x64
+) else (
+    if /I "%PROCESSOR_ARCHITEW6432%"=="AMD64" (
+        goto :is_x64
+    )
+    if /I "%PROCESSOR_ARCHITECTURE%"=="x86" (
+        set "WINDOWS_ARCHITECTURE=x86"
+        set "wufuc_dll=%~dp0wufuc32.dll"
+        goto :check_ver
+    )
+)
+goto :unsupported_os
+
+:is_x64
+set "WINDOWS_ARCHITECTURE=x64"
+set "wufuc_dll=%~dp0wufuc64.dll"
+
+:check_ver
+wmic /output:stdout os get version | findstr "^6\.1\." >nul && (
+    set "WINDOWS_VER=6.1"
+    set "SUPPORTED_HOTFIXES=KB4019265 KB4019264 KB4015552 KB4015549 KB4015546 KB4012218"
+    echo Detected supported operating system: Windows 7 %WINDOWS_ARCHITECTURE%
+    goto :check_hotfix
+)
+wmic /output:stdout os get version | findstr "^6\.3\." >nul && (
+    set "WINDOWS_VER=8.1"
+    set "SUPPORTED_HOTFIXES=KB4019217 KB4019215 KB4015553 KB4015550 KB4015547 KB4012219"
+    echo Detected supported operating system: Windows 8.1 %WINDOWS_ARCHITECTURE%
+    goto :check_hotfix
+)
+
+:unsupported_os
+echo Detected that you are using an unsupported operating system.
+echo.
+echo This patch only works on the following versions of Windows:
+echo.
+echo - Windows 7 (x64 and x86)
+echo - Windows 8.1 (x64 and x86)
+echo - Windows Server 2008 R2
+echo - Windows Server 2012 R2
+goto :die
+
+:check_hotfix
+for %%a in (%SUPPORTED_HOTFIXES%) do (
+    wmic /output:stdout qfe get hotfixid | find "%%a" >nul && (
+        set "INSTALLED_HOTFIX=%%a"
+        echo Detected installed supported update: %%a
+        goto :confirmation
+    )
+)
+
+echo.
+echo WARNING - Detected that no supported updates are installed! 
+echo.
+echo This can be a false warning, if you are certain that need wufuc then you
+echo can continue (there will be no side effects even if you don't need it)
+
+set /p CONTINUE=Enter 'Y' if you still want to continue: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+
+:confirmation
+echo.
+echo wufuc disables the "Unsupported Hardware" message in Windows Update, 
+echo and allows you to continue installing updates on Windows 7 and 8.1
+echo systems with Intel Kaby Lake, AMD Ryzen, or other unsupported processors.
+echo.
+
+set /p CONTINUE=Enter 'Y' if you want to install wufuc: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+echo.
+
+set "vcredist_path=%~dp0_Redist\vcredist_%WINDOWS_ARCHITECTURE%.exe"
+if exist "%vcredist_path%" (
+    echo Installing Microsoft Visual C^+^+ 2017 Redistributable ^(%WINDOWS_ARCHITECTURE%^)...
+    "%vcredist_path%" /passive /norestart
+    goto :install
+)
+
+echo Couldn't locate and install Microsoft Visual C^+^+ 2017 Redistributable ^(%WINDOWS_ARCHITECTURE%^).
+
+set /p CONTINUE=Enter 'Y' if you still want to continue: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+echo.
+
+:install
+set "wufuc_task=wufuc.{72EEE38B-9997-42BD-85D3-2DD96DA17307}"
+schtasks /Create /XML "%~dp0wufuc.xml" /TN "%wufuc_task%" /F
+schtasks /Change /TN "%wufuc_task%" /TR "'%systemroot%\system32\rundll32.exe' """%wufuc_dll%""",Rundll32Entry"
+schtasks /Change /TN "%wufuc_task%" /ENABLE
+rundll32 "%wufuc_dll%",Rundll32Unload
+schtasks /Run /TN "%wufuc_task%"
+
+echo.
+echo Installed and started wufuc!
+goto :die
+
+:die
+echo.
+echo Press any key to exit...
+pause >nul
+exit
+
+
+:cancel
+echo.
+echo Canceled by user, press any key to exit...
+pause >nul
+exit

install/repair_wuaueng.dll.bat

@@ -0,0 +1,52 @@
+@echo off
+title install wufuc (repair wuaueng.dll) - v0.6
+:: Copyright (C) 2017 zeffy
+
+:: This program is free software: you can redistribute it and/or modify
+:: it under the terms of the GNU General Public License as published by
+:: the Free Software Foundation, either version 3 of the License, or
+:: (at your option) any later version.
+
+:: This program is distributed in the hope that it will be useful,
+:: but WITHOUT ANY WARRANTY; without even the implied warranty of
+:: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+:: GNU General Public License for more details.
+
+:: You should have received a copy of the GNU General Public License
+:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+echo Copyright (C) 2017 zeffy
+echo This program comes with ABSOLUTELY NO WARRANTY.
+echo This is free software, and you are welcome to redistribute it
+echo under certain conditions; see COPYING.txt for details.
+echo.
+
+fltmc >nul 2>&1 || (
+    echo This batch script requires administrator privileges. Right-click on
+    echo %~nx0 and select "Run as administrator".
+    goto :die
+)
+
+:confirmation
+echo You may want to use this script if you previously modified wuaueng.dll
+echo with "aio-wuaueng.dll-patch.bat" or by other means.
+echo.
+echo This will run the sfc utility and it will restore any changes that were made.
+echo.
+
+set /p CONTINUE=Enter 'Y' if you want to repair wuaueng.dll: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+
+sfc /SCANFILE="%systemroot%\System32\wuaueng.dll"
+
+:die
+echo.
+echo Press any key to exit...
+pause >nul
+exit
+
+:cancel
+echo.
+echo Canceled by user, press any key to exit...
+pause >nul
+exit

install/uninstall_wufuc.bat

@@ -0,0 +1,71 @@
+@echo off
+title wufuc uninstaller - v0.6
+:: Copyright (C) 2017 zeffy
+
+:: This program is free software: you can redistribute it and/or modify
+:: it under the terms of the GNU General Public License as published by
+:: the Free Software Foundation, either version 3 of the License, or
+:: (at your option) any later version.
+
+:: This program is distributed in the hope that it will be useful,
+:: but WITHOUT ANY WARRANTY; without even the implied warranty of
+:: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+:: GNU General Public License for more details.
+
+:: You should have received a copy of the GNU General Public License
+:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+echo Copyright (C) 2017 zeffy
+echo This program comes with ABSOLUTELY NO WARRANTY.
+echo This is free software, and you are welcome to redistribute it
+echo under certain conditions; see COPYING.txt for details.
+echo.
+
+fltmc >nul 2>&1 || (
+    echo This batch script requires administrator privileges. Right-click on
+    echo %~nx0 and select "Run as administrator".
+    goto :die
+)
+
+if /I "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
+    goto :is_x64
+) else (
+    if /I "%PROCESSOR_ARCHITEW6432%"=="AMD64" (
+        goto :is_x64
+    )
+    if /I "%PROCESSOR_ARCHITECTURE%"=="x86" (
+        set "WINDOWS_ARCHITECTURE=x86"
+        set "wufuc_dll=%~dp0wufuc32.dll"
+        goto :confirmation
+    )
+)
+goto :die
+
+:is_x64
+set "WINDOWS_ARCHITECTURE=x64"
+set "wufuc_dll=%~dp0wufuc64.dll"
+
+:confirmation
+set /p CONTINUE=Enter 'Y' if you want to uninstall wufuc: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+echo.
+
+:uninstall
+set "wufuc_task=wufuc.{72EEE38B-9997-42BD-85D3-2DD96DA17307}"
+rundll32 "%wufuc_dll%",Rundll32Unload
+schtasks /Delete /TN "%wufuc_task%" /F
+
+echo.
+echo Unloaded and uninstalled wufuc!
+
+:die
+echo.
+echo Press any key to exit...
+pause >nul
+exit
+
+:cancel
+echo.
+echo Canceled by user, press any key to exit...
+pause >nul
+exit

patch_scripts/aio/aio-wuaueng.dll-patch.bat

@@ -1,270 +0,0 @@
-@echo off
-:: Copyright (C) 2017 zeffy <https://github.com/zeffy>
-
-:: This program is free software: you can redistribute it and/or modify
-:: it under the terms of the GNU General Public License as published by
-:: the Free Software Foundation, either version 3 of the License, or
-:: (at your option) any later version.
-
-:: This program is distributed in the hope that it will be useful,
-:: but WITHOUT ANY WARRANTY; without even the implied warranty of
-:: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-:: GNU General Public License for more details.
-
-:: You should have received a copy of the GNU General Public License
-:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-echo Copyright (C) 2017 zeffy ^<https://github.com/zeffy^>
-echo This program comes with ABSOLUTELY NO WARRANTY.
-echo This is free software, and you are welcome to redistribute it
-echo under certain conditions; see COPYING.txt for details.
-echo.
-
-net session >nul 2>&1 || (
-    echo This batch script requires administrator privileges. Right-click on
-    echo %~nx0 and select "Run as administrator".
-    goto :die
-)
-
-set "SYSTEM32_DIR=%systemroot%\System32"
-set "WUAUENG_DLL=%SYSTEM32_DIR%\wuaueng.dll"
-
-echo Checking system requirements...
-
-:check_bitness
-if /I "%PROCESSOR_ARCHITECTURE%"=="AMD64" (
-    goto :is_x64
-) else (
-    if /I "%PROCESSOR_ARCHITEW6432%"=="AMD64" (
-        goto :is_x64
-    )
-    if /I "%PROCESSOR_ARCHITECTURE%"=="x86" (
-        set "WINDOWS_ARCHITECTURE=x86"
-        set "XDELTA3_EXE=%~dp0xdelta3-3.0.11-i686.exe"
-        goto :find_xdelta3
-    )
-)
-goto :unsupported_os
-
-:is_x64
-set "WINDOWS_ARCHITECTURE=x64"
-set "XDELTA3_EXE=%~dp0xdelta3-3.0.11-x86_64.exe"
-
-:find_xdelta3
-echo.
-if not exist "%XDELTA3_EXE%" (
-    call :file_not_found "%XDELTA3_EXE%"
-    goto :die
-)
-
-wmic /output:stdout os get version | findstr "^6\.1\." >nul && (
-    set "WINDOWS_VER=6.1"
-    set "SUPPORTED_HOTFIXES=KB4015552 KB4015549 KB4015546 KB4012218"
-    echo Detected supported operating system: Windows 7 %WINDOWS_ARCHITECTURE%
-    goto :check_hotfix
-)
-wmic /output:stdout os get version | findstr "^6\.3\." >nul && (
-    set "WINDOWS_VER=8.1"
-    set "SUPPORTED_HOTFIXES=KB4015553 KB4015550 KB4015547 KB4012219"
-    echo Detected supported operating system: Windows 8.1 %WINDOWS_ARCHITECTURE%
-    goto :check_hotfix
-)
-
-:unsupported_os
-echo Detected that you are using an unsupported operating system.
-echo.
-echo This patch only works on the following versions of Windows:
-echo.
-echo - Windows 7 (x64 and x86)
-echo - Windows 8.1 (x64 and x86)
-echo - Windows Server 2008 R2 (reported as Windows 7 x64)
-echo - Windows Server 2012 R2 (reported as Windows 8.1 x64)
-goto :die
-
-:check_hotfix
-echo.
-for %%a in (%SUPPORTED_HOTFIXES%) do (
-    wmic /output:stdout qfe get hotfixid | find "%%a" >nul && (
-        set "INSTALLED_HOTFIX=%%a"
-        echo Detected installed supported update: %%a
-        goto :confirmation
-    )
-)
-
-echo Detected that no supported updates are installed! If you are getting 
-echo unsupported hardware errors in Windows Update, please create an issue
-echo and I will try to help you out.
-echo.
-echo https://github.com/zeffy/kb4012218-19/issues
-echo.
-call :show_debug_info
-goto :die
-
-:confirmation
-echo.
-echo This patch only works on the following versions of Windows:
-echo.
-echo - Windows 7 (x64 and x86)
-echo - Windows 8.1 (x64 and x86)
-echo - Windows Server 2008 R2 (reported as Windows 7 x64)
-echo - Windows Server 2012 R2 (reported as Windows 8.1 x64)
-echo.
-echo If you have another version of Windows, please close this window immediately.
-echo.
-echo By continuing, you acknowledge that you want to modify wuaueng.dll.
-echo.
-echo I take no responsibility if you somehow ruin your PC with this script.
-echo.
-set /p CONTINUE=Enter 'Y' if you understand, and still want to continue: 
-if /I not "%CONTINUE%"=="Y" goto :cancel
-
-:ask
-echo.
-echo Would you like to install the patch or uninstall it?
-echo.
-echo 1. Install
-echo 2. Uninstall
-echo.
-set /p CHOICE=Enter your choice: 
-if "%CHOICE%"=="1" (
-    set "PATCH_TYPE=patch"
-    goto :begin
-)
-if "%CHOICE%"=="2" (
-    set "PATCH_TYPE=unpatch"
-    goto :begin
-)
-echo Invalid choice, please try again...
-goto :ask
-
-:begin
-echo.
-set "DELTA_FILE=%~dp0patches\Windows%WINDOWS_VER%-%INSTALLED_HOTFIX%-%WINDOWS_ARCHITECTURE%-%PATCH_TYPE%.xdelta"
-if not exist "%DELTA_FILE%" (
-    call :file_not_found "%DELTA_FILE%"
-    goto :die
-)
-call :set_timestamp_var
-set "BACKUP_FILE=%WUAUENG_DLL%_%TIMESTAMP%_before-%PATCH_TYPE%.bak"
-set "ACL_TEMP_FILE=%temp%\wuaueng.dll_acl_%TIMESTAMP%.txt"
-
-net stop wuauserv
-
-takeown /F "%WUAUENG_DLL%" /A
-icacls "%WUAUENG_DLL%" /save "%ACL_TEMP_FILE%"
-
-:: Administrators group SID
-icacls "%WUAUENG_DLL%" /grant *S-1-5-32-544:F
-move "%WUAUENG_DLL%" "%BACKUP_FILE%"
-
-"%XDELTA3_EXE%" -d -s "%BACKUP_FILE%" "%DELTA_FILE%" "%WUAUENG_DLL%"
-if errorlevel 1 (
-    set "THERE_WAS_AN_ERROR=%errorlevel%"
-    move /Y "%BACKUP_FILE%" "%WUAUENG_DLL%"
-)
-
-:: "NT Service\TrustedInstaller" SID
-icacls "%WUAUENG_DLL%" /setowner *S-1-5-80-956008885-3418522649-1831038044-1853292631-2271478464
-icacls "%SYSTEM32_DIR%" /restore "%ACL_TEMP_FILE%"
-
-net start wuauserv
-
-echo.
-if defined THERE_WAS_AN_ERROR (
-    echo There was an error while %PATCH_TYPE%ing. Nothing has been modified. 
-    echo If you didn't screw with the script or anything like that and this
-    echo error was unexpected, please create an issue and include the output
-    echo of this window in your post.
-    echo.
-    echo https://github.com/zeffy/kb4012218-19/issues
-    echo.
-    call :show_debug_info
-) else (
-    echo Successfully %PATCH_TYPE%ed!
-    echo If you want to revert the changes that have been made for whatever
-    echo reason, you can run this script again and pick the other option.
-    echo.
-    echo You can also manually restore the backup file located at 
-    echo '%BACKUP_FILE%'
-    echo by renaming it back to wuaueng.dll, changing the owner back to 
-    echo "NT Service\TrustedInstaller", and restoring the original permissions from 
-    echo '%ACL_TEMP_FILE%'. 
-    echo However, make absolutely sure you only restore the backup that is the same 
-    echo version as the current wuaueng.dll, or you could corrupt the WinSxS component
-    echo store.
-)
-
-:die
-echo.
-echo Press any key to exit...
-pause >nul
-exit
-
-:cancel
-echo.
-echo Canceled by user, press any key to exit...
-pause >nul
-exit
-
-:show_debug_info
-echo Gathering debugging information, please wait...
-call :set_timestamp_var
-set "DEBUG_LOG_FILE=%temp%\%~nx0-debuginfo_%TIMESTAMP%.log"
-
-set "WMI_OS_VALUES=BuildNumber,Caption,MUILanguages,OSArchitecture,OSLanguage,Version"
-set "WMI_CPU_VALUES=Description,DeviceID,Family,Manufacturer,Name,NumberOfCores,NumberOfLogicalProcessors,ProcessorId,Revision,SocketDesignation"
-set "WMI_QFE_VALUES=HotFixID,InstalledOn"
-set "WMI_DATAFILE_VALUES=CreationDate,FileSize,InstallDate,LastAccessed,LastModified,Version"
-set "CERTUTIL_HASH_ALGS=MD5 SHA1 SHA256"
-
-echo.>"%DEBUG_LOG_FILE%"
-echo ^<details^>>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-echo ## Operating System>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-wmic /output:stdout os get %WMI_OS_VALUES% /value | findstr /V "^$" >>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-
-echo ## Processor>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-wmic /output:stdout cpu get %WMI_CPU_VALUES% /value | findstr /V "^$" >>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-
-echo ## Installed Hotfixes>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-wmic /output:stdout qfe get %WMI_QFE_VALUES% /value | findstr /V "^$" >>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-
-echo ## wuaueng.dll Properties>>"%DEBUG_LOG_FILE%"
-echo.>>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-for %%a in (%CERTUTIL_HASH_ALGS%) do (
-    certutil -hashfile "%WUAUENG_DLL%" "%%a" | find /V "CertUtil" >>"%DEBUG_LOG_FILE%"
-    echo.>>"%DEBUG_LOG_FILE%"
-)
-wmic /output:stdout datafile where "name='%WUAUENG_DLL:\=\\%'" get %WMI_DATAFILE_VALUES% /value | findstr /V "^$" >>"%DEBUG_LOG_FILE%"
-echo ```>>"%DEBUG_LOG_FILE%"
-echo ^</details^>>>"%DEBUG_LOG_FILE%"
-
-echo.
-echo Done! Please copy the text from Notepad into your GitHub issue.
-echo Opening log file in 5 seconds...
-timeout /t 5 /nobreak >nul
-start "" notepad "%DEBUG_LOG_FILE%"
-exit /b
-
-:set_timestamp_var
-for /f "delims=" %%a in ('wmic /output:stdout os get localdatetime ^| find "."') do set dt=%%a
-set "TIMESTAMP=%dt:~0,4%-%dt:~4,2%-%dt:~6,2%_%dt:~8,2%-%dt:~10,2%-%dt:~12,2%_%dt:~15,6%"
-exit /b
-
-:file_not_found
-echo File "%~1" not found! 
-echo Make sure you extracted all the files from the release .zip and try again.
-exit /b

wufuc.sln

@@ -0,0 +1,40 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26430.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wufuc", "wufuc\wufuc.vcxproj", "{00F96695-CE41-4C2F-A344-6219DFB4F887}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{8C2147FF-2B83-479B-813E-5ACB86F43042}"
+	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
+		LICENSE = LICENSE
+		README.md = README.md
+		wufuc.xml = wufuc.xml
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Debug|Any CPU.ActiveCfg = Debug|Win32
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Debug|x64.ActiveCfg = Debug|x64
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Debug|x64.Build.0 = Debug|x64
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Debug|x86.ActiveCfg = Debug|Win32
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Debug|x86.Build.0 = Debug|Win32
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|Any CPU.ActiveCfg = Release|Win32
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x64.ActiveCfg = Release|x64
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x64.Build.0 = Release|x64
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x86.ActiveCfg = Release|Win32
+		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

wufuc/core.c

@@ -0,0 +1,161 @@
+#include <Windows.h>
+#include <Psapi.h>
+#include <TlHelp32.h>
+#include <tchar.h>
+#include <aclapi.h>
+#include <sddl.h>
+#include "core.h"
+#include "process.h"
+#include "service.h"
+#include "util.h"
+
+DWORD WINAPI NewThreadProc(LPVOID lpParam) {
+	SC_HANDLE hSCManager = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE, SC_MANAGER_CONNECT);
+
+	TCHAR lpBinaryPathName[0x8000];
+	QueryServiceBinaryPathName(hSCManager, _T("wuauserv"), lpBinaryPathName, _countof(lpBinaryPathName));
+
+	BOOL result = _tcsicmp(GetCommandLine(), lpBinaryPathName);
+	CloseServiceHandle(hSCManager);
+
+	if (result) {
+		return 0;
+	}
+
+	SECURITY_ATTRIBUTES sa;
+	sa.nLength = sizeof(sa);
+	ConvertStringSecurityDescriptorToSecurityDescriptor(_T("D:PAI(A;;FA;;;BA)"), SDDL_REVISION_1, &(sa.lpSecurityDescriptor), NULL);
+	sa.bInheritHandle = FALSE;
+
+	HANDLE hEvent = CreateEvent(&sa, FALSE, FALSE, _T("Global\\wufuc_UnloadEvent"));
+
+	if (!hEvent) {
+		return 0;
+	}
+
+	HANDLE lphThreads[0x1000];
+	SIZE_T cb;
+	SuspendProcess(lphThreads, _countof(lphThreads), &cb);
+
+	HMODULE hm = GetModuleHandle(NULL);
+	DETOUR_IAT(hm, LoadLibraryExA);
+	DETOUR_IAT(hm, LoadLibraryExW);
+
+	DbgPrint("Applied LoadLibraryEx hooks.");
+
+	HMODULE hwu = GetModuleHandle(_T("wuaueng.dll"));
+	if (hwu) {
+		PatchWUModule(hwu);
+	}
+	ResumeAndCloseThreads(lphThreads, cb);
+
+	WaitForSingleObject(hEvent, INFINITE);
+	CloseHandle(hEvent);
+
+	DbgPrint("Received wufuc_UnloadEvent, removing hooks.");
+
+	SuspendProcess(lphThreads, _countof(lphThreads), &cb);
+	RESTORE_IAT(hm, LoadLibraryExA);
+	RESTORE_IAT(hm, LoadLibraryExW);
+	ResumeAndCloseThreads(lphThreads, cb);
+
+	DbgPrint("Unloading library. Cya!");
+	FreeLibraryAndExitThread(HINST_THISCOMPONENT, 0);
+	return 0;
+}
+
+BOOL IsWUModule(HMODULE hModule) {
+	TCHAR lpBaseName[MAX_PATH + 1];
+	GetModuleBaseName(GetCurrentProcess(), hModule, lpBaseName, _countof(lpBaseName));
+	return !_tcsicmp(lpBaseName, _T("wuaueng.dll"));
+}
+
+BOOL PatchWUModule(HMODULE hModule) {
+	if (!IsWindows7Or8Point1()) {
+		return FALSE;
+	}
+
+	LPSTR lpszPattern;
+	SIZE_T n1, n2;
+#ifdef _WIN64
+	lpszPattern =
+		"FFF3"					// push rbx
+		"4883EC??"				// sub rsp,??
+		"33DB"					// xor ebx,ebx
+		"391D????????"			// cmp dword ptr ds:[???????????],ebx
+		"7508"					// jnz $+8
+		"8B05????????";			// mov eax,dword ptr ds:[???????????]
+	n1 = 10;
+	n2 = 18;
+#elif defined(_WIN32)
+	if (IsWindows8Point1()) {
+		lpszPattern =
+			"8BFF"				// mov edi,edi
+			"51"				// push ecx
+			"833D????????00"	// cmp dword ptr ds:[????????],0
+			"7507"				// jnz $+7
+			"A1????????";		// mov eax,dword ptr ds:[????????]
+		n1 = 5;
+		n2 = 13;
+	}
+	else if (IsWindows7()) {
+		lpszPattern =
+			"833D????????00"	// cmp dword ptr ds:[????????],0
+			"743E"				// je $+3E
+			"E8????????"		// call <wuaueng.IsCPUSupported>
+			"A3????????";		// mov dword ptr ds:[????????],eax
+		n1 = 2;
+		n2 = 15;
+	}
+#else
+	return FALSE;
+#endif
+
+	MODULEINFO modinfo;
+	GetModuleInformation(GetCurrentProcess(), hModule, &modinfo, sizeof(MODULEINFO));
+
+	SIZE_T offset;
+	if (!FindPattern(modinfo.lpBaseOfDll, modinfo.SizeOfImage, lpszPattern, 0, &offset)) {
+		return FALSE;
+	}
+	DbgPrint("IsDeviceServiceable(void) matched at %p", (UINT_PTR)modinfo.lpBaseOfDll + offset);
+
+	DWORD *lpdwResultIsNotCachedOffset = (DWORD *)((UINT_PTR)modinfo.lpBaseOfDll + offset + n1);
+	BOOL *lpbResultIsNotCached = (BOOL *)((UINT_PTR)modinfo.lpBaseOfDll + offset + n1 + sizeof(DWORD) + *lpdwResultIsNotCachedOffset);
+	if (*lpbResultIsNotCached) {
+		*lpbResultIsNotCached = FALSE;
+		DbgPrint("Patched %p=%d", lpbResultIsNotCached, *lpbResultIsNotCached);
+	}
+
+	DWORD *lpdwCachedResultOffset = (DWORD *)((UINT_PTR)modinfo.lpBaseOfDll + offset + n2);
+	BOOL *lpbCachedResult = (BOOL *)((UINT_PTR)modinfo.lpBaseOfDll + offset + n2 + sizeof(DWORD) + *lpdwCachedResultOffset);
+	if (!*lpbCachedResult) {
+		*lpbCachedResult = TRUE;
+		DbgPrint("Patched %p=%d", lpbCachedResult, *lpbCachedResult);
+	}
+	return TRUE;
+}
+
+HMODULE WINAPI _LoadLibraryExA(
+	_In_       LPCSTR  lpFileName,
+	_Reserved_ HANDLE  hFile,
+	_In_       DWORD   dwFlags
+) {
+	HMODULE result = LoadLibraryExA(lpFileName, hFile, dwFlags);
+	if (IsWUModule(result)) {
+		PatchWUModule(result);
+	}
+	return result;
+}
+
+HMODULE WINAPI _LoadLibraryExW(
+	_In_       LPCWSTR lpFileName,
+	_Reserved_ HANDLE  hFile,
+	_In_       DWORD   dwFlags
+) {
+	HMODULE result = LoadLibraryExW(lpFileName, hFile, dwFlags);
+	if (IsWUModule(result)) {
+		PatchWUModule(result);
+	}
+	return result;
+};

wufuc/core.h

@@ -0,0 +1,17 @@
+#pragma once
+
+DWORD WINAPI NewThreadProc(LPVOID lpParam);
+
+BOOL PatchWUModule(HMODULE hModule);
+
+HMODULE WINAPI _LoadLibraryExA(
+	_In_       LPCSTR  lpFileName,
+	_Reserved_ HANDLE  hFile,
+	_In_       DWORD   dwFlags
+);
+
+HMODULE WINAPI _LoadLibraryExW(
+	_In_       LPCWSTR lpFileName,
+	_Reserved_ HANDLE  hFile,
+	_In_       DWORD   dwFlags
+);

wufuc/dllmain.c

@@ -0,0 +1,19 @@
+#include <Windows.h>
+#include "core.h"
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
+	switch (ul_reason_for_call) {
+	case DLL_PROCESS_ATTACH:
+	{
+		DisableThreadLibraryCalls(hModule);
+		HANDLE hThread = CreateThread(NULL, 0, NewThreadProc, NULL, 0, NULL);
+		CloseHandle(hThread);
+		break;
+	}
+	case DLL_PROCESS_DETACH:
+		break;
+	default:
+		break;
+	}
+	return TRUE;
+}

wufuc/entrypoint.c

@@ -0,0 +1,41 @@
+#include <Windows.h>
+#include <TlHelp32.h>
+#include <tchar.h>
+#include "service.h"
+#include "process.h"
+#include "util.h"
+
+void CALLBACK Rundll32Entry(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow) {
+	HANDLE hEvent = OpenEvent(SYNCHRONIZE, FALSE, _T("Global\\wufuc_UnloadEvent"));
+	if (hEvent) {
+		CloseHandle(hEvent);
+		return;
+	}
+	SC_HANDLE hSCManager = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE, SC_MANAGER_CONNECT);
+	TCHAR lpGroupName[256];
+	DWORD dwProcessId;
+	BOOL result = QueryServiceProcessId(hSCManager, _T("wuauserv"), &dwProcessId);
+	if (!result && GetServiceGroupName(hSCManager, _T("wuauserv"), lpGroupName, _countof(lpGroupName))) {
+		result = FindServiceGroupProcessId(hSCManager, lpGroupName, &dwProcessId);
+	}
+	CloseServiceHandle(hSCManager);
+	if (!result) {
+		return;
+	}
+	TCHAR lpLibFileName[MAX_PATH + 1];
+	GetModuleFileName(HINST_THISCOMPONENT, lpLibFileName, _countof(lpLibFileName));
+
+	HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId);
+
+	InjectLibrary(hProcess, lpLibFileName, _countof(lpLibFileName));
+	CloseHandle(hProcess);
+}
+
+void CALLBACK Rundll32Unload(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow) {
+	HANDLE hEvent = OpenEvent(EVENT_MODIFY_STATE, FALSE, _T("Global\\wufuc_UnloadEvent"));
+	if (hEvent) {
+		DbgPrint("Setting wufuc_UnloadEvent...");
+		SetEvent(hEvent);
+		CloseHandle(hEvent);
+	}
+}

wufuc/exports.def

@@ -0,0 +1,3 @@
+EXPORTS
+	Rundll32Entry
+	Rundll32Unload

wufuc/process.c

@@ -0,0 +1,139 @@
+#include <windows.h>
+#include <stdio.h>
+#include <TlHelp32.h>
+#include <tchar.h>
+#include "util.h"
+#include "process.h"
+
+VOID DetourIAT(HMODULE hModule, LPSTR lpFuncName, LPVOID *lpOldAddress, LPVOID lpNewAddress) {
+	LPVOID *lpAddress = FindIAT(hModule, lpFuncName);
+	if (!lpAddress || *lpAddress == lpNewAddress) {
+		return;
+	}
+
+	DWORD flOldProtect;
+	DWORD flNewProtect = PAGE_READWRITE;
+	VirtualProtect(lpAddress, sizeof(LPVOID), flNewProtect, &flOldProtect);
+	if (lpOldAddress) {
+		*lpOldAddress = *lpAddress;
+	}
+	DbgPrint("%S %p => %p", lpFuncName, *lpAddress, lpNewAddress);
+	*lpAddress = lpNewAddress;
+	VirtualProtect(lpAddress, sizeof(LPVOID), flOldProtect, &flNewProtect);
+}
+
+LPVOID *FindIAT(HMODULE hModule, LPSTR lpFuncName) {
+	PIMAGE_DOS_HEADER dos = (PIMAGE_DOS_HEADER)hModule;
+	PIMAGE_NT_HEADERS nt = (PIMAGE_NT_HEADERS)((LPBYTE)dos + dos->e_lfanew);
+	PIMAGE_IMPORT_DESCRIPTOR desc = (PIMAGE_IMPORT_DESCRIPTOR)((LPBYTE)dos + nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress);
+
+	for (PIMAGE_IMPORT_DESCRIPTOR iid = desc; iid->Name != 0; iid++) {
+		for (int i = 0; *(i + (LPVOID*)(iid->FirstThunk + (SIZE_T)hModule)) != NULL; i++) {
+			LPSTR name = (LPSTR)(*(i + (SIZE_T*)(iid->OriginalFirstThunk + (SIZE_T)hModule)) + (SIZE_T)hModule + 2);
+			const uintptr_t n = (uintptr_t)name;
+			if (!(n & (sizeof(n) == 4 ? 0x80000000 : 0x8000000000000000)) && !_stricmp(lpFuncName, name)) {
+				return i + (LPVOID*)(iid->FirstThunk + (SIZE_T)hModule);
+			}
+		}
+	}
+	return NULL;
+}
+
+BOOL FindPattern(LPCBYTE lpBytes, SIZE_T nNumberOfBytes, LPSTR lpszPattern, SIZE_T nStart, SIZE_T *lpOffset) {
+	SIZE_T nPatternLength = strlen(lpszPattern);
+	SIZE_T nMaskLength = nPatternLength / 2;
+	if (nMaskLength > nNumberOfBytes || nPatternLength % 2) {
+		return FALSE;
+	}
+
+	LPBYTE lpPattern = malloc(nMaskLength * sizeof(BYTE));
+	BOOL *lpbMask = malloc(nMaskLength * sizeof(BOOL));
+
+	LPSTR p = lpszPattern;
+	BOOL valid = TRUE;
+	for (SIZE_T i = 0; i < nMaskLength; i++) {
+		if (lpbMask[i] = strncmp(p, "??", 2)) {
+			if (sscanf_s(p, "%2hhx", &lpPattern[i]) != 1) {
+				valid = FALSE;
+				break;
+			}
+		}
+		p += 2;
+	}
+	BOOL result = FALSE;
+	if (valid) {
+		for (SIZE_T i = nStart; i < nNumberOfBytes - nStart - (nMaskLength - 1); i++) {
+			BOOL found = TRUE;
+			for (SIZE_T j = 0; j < nMaskLength; j++) {
+				if (lpbMask[j] && lpBytes[i + j] != lpPattern[j]) {
+					found = FALSE;
+					break;
+				}
+			}
+			if (found) {
+				*lpOffset = i;
+				result = TRUE;
+				break;
+			}
+		}
+	}
+	free(lpPattern);
+	free(lpbMask);
+	return result;
+}
+
+BOOL InjectLibrary(HANDLE hProcess, LPCTSTR lpLibFileName, DWORD cb) {
+	LPVOID lpBaseAddress = VirtualAllocEx(hProcess, NULL, cb, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
+	if (!WriteProcessMemory(hProcess, lpBaseAddress, lpLibFileName, cb, NULL)) {
+		return FALSE;
+	}
+	DWORD dwProcessId = GetProcessId(hProcess);
+	HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, dwProcessId);
+	MODULEENTRY32 me;
+	me.dwSize = sizeof(me);
+
+	Module32First(hSnap, &me);
+	do {
+		if (!_tcsicmp(me.szModule, _T("kernel32.dll"))) {
+			break;
+		}
+	} while (Module32Next(hSnap, &me));
+	CloseHandle(hSnap);
+	DbgPrint("Injecting %s into process %d", lpLibFileName, dwProcessId);
+	HANDLE hThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(me.hModule, _CRT_STRINGIZE(LoadLibrary)), lpBaseAddress, 0, NULL);
+	CloseHandle(hThread);
+	return TRUE;
+}
+
+VOID SuspendProcess(HANDLE *lphThreads, SIZE_T dwSize, SIZE_T *lpcb) {
+	HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
+	THREADENTRY32 te;
+	te.dwSize = sizeof(te);
+	Thread32First(hSnap, &te);
+
+	DWORD dwProcessId = GetCurrentProcessId();
+	DWORD dwThreadId = GetCurrentThreadId();
+
+	SIZE_T count = 0;
+
+	do {
+		if (te.th32OwnerProcessID != dwProcessId || te.th32ThreadID == dwThreadId) {
+			continue;
+		}
+		lphThreads[count] = OpenThread(THREAD_SUSPEND_RESUME, FALSE, te.th32ThreadID);
+		SuspendThread(lphThreads[count]);
+		count++;
+	} while (count < dwSize && Thread32Next(hSnap, &te));
+	CloseHandle(hSnap);
+
+	*lpcb = count;
+	DbgPrint("Suspended other threads.");
+}
+
+VOID ResumeAndCloseThreads(HANDLE *lphThreads, SIZE_T cb) {
+	for (SIZE_T i = 0; i < cb; i++) {
+		ResumeThread(lphThreads[i]);
+		CloseHandle(lphThreads[i]);
+	}
+	DbgPrint("Resumed threads.");
+}

wufuc/process.h

@@ -0,0 +1,20 @@
+#pragma once
+
+VOID DetourIAT(HMODULE hModule, LPSTR lpFuncName, LPVOID *lpOldAddress, LPVOID lpNewAddress);
+
+#define DETOUR_IAT(x, y) \
+	LPVOID __LPORIGINAL##y; \
+	DetourIAT(x, #y, &__LPORIGINAL##y, &_##y)
+
+#define RESTORE_IAT(x, y) \
+	DetourIAT(x, #y, NULL, __LPORIGINAL##y)
+
+LPVOID *FindIAT(HMODULE hModule, LPSTR lpFuncName);
+
+BOOL FindPattern(LPCBYTE lpBytes, SIZE_T nNumberOfBytes, LPSTR lpszPattern, SIZE_T nStart, SIZE_T *lpOffset);
+
+BOOL InjectLibrary(HANDLE hProcess, LPCTSTR lpLibFileName, DWORD cb);
+
+VOID SuspendProcess(HANDLE *lphThreads, SIZE_T dwSize, SIZE_T *lpcb);
+
+VOID ResumeAndCloseThreads(HANDLE *lphThreads, SIZE_T dwSize);

wufuc/resource.h

@@ -0,0 +1,15 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by version.rc
+//
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        101
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1000
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif

wufuc/service.c

@@ -0,0 +1,97 @@
+#include <windows.h>
+#include <tchar.h>
+#include "util.h"
+#include "service.h"
+
+BOOL QueryServiceBinaryPathName(SC_HANDLE hSCManager, LPCTSTR lpServiceName, LPTSTR lpBinaryPathName, SIZE_T dwSize) {
+	HANDLE hService = OpenService(hSCManager, lpServiceName, SERVICE_QUERY_CONFIG);
+	if (!hService) {
+		return FALSE;
+	}
+
+	DWORD cbBytesNeeded;
+	QueryServiceConfig(hService, NULL, 0, &cbBytesNeeded);
+	LPQUERY_SERVICE_CONFIG sc = malloc(cbBytesNeeded);
+	BOOL result = QueryServiceConfig(hService, sc, cbBytesNeeded, &cbBytesNeeded);
+	int a = GetLastError();
+	CloseServiceHandle(hService);
+	if (result) {
+		_tcscpy_s(lpBinaryPathName, dwSize, sc->lpBinaryPathName);
+	}
+	LocalFree(sc);
+	return result;
+}
+
+BOOL QueryServiceProcessId(SC_HANDLE hSCManager, LPCTSTR lpServiceName, DWORD *lpdwProcessId) {
+	SC_HANDLE hService = OpenService(hSCManager, lpServiceName, SERVICE_QUERY_STATUS);
+	if (!hService) {
+		return FALSE;
+	}
+
+	SERVICE_STATUS_PROCESS lpBuffer;
+	DWORD cbBytesNeeded;
+	BOOL result = FALSE;
+	if (QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, (LPBYTE)&lpBuffer, sizeof(lpBuffer), &cbBytesNeeded) && lpBuffer.dwProcessId) {
+		*lpdwProcessId = lpBuffer.dwProcessId;
+		result = TRUE;
+		DbgPrint("Found %s pid %d", lpServiceName, *lpdwProcessId);
+	}
+	CloseServiceHandle(hService);
+	return result;
+}
+
+BOOL GetServiceGroupName(SC_HANDLE hSCManager, LPCTSTR lpServiceName, LPTSTR lpGroupName, SIZE_T dwSize) {
+	TCHAR lpBinaryPathName[0x8000];
+	if (!QueryServiceBinaryPathName(hSCManager, lpServiceName, lpBinaryPathName, _countof(lpBinaryPathName))) {
+		return FALSE;
+	}
+	int numArgs;
+	LPWSTR *argv = CommandLineToArgv(lpBinaryPathName, &numArgs);
+	if (numArgs < 3) {
+		return FALSE;
+	}
+
+	TCHAR fname[_MAX_FNAME];
+	_tsplitpath_s(argv[0], NULL, 0, NULL, 0, fname, _countof(fname), NULL, 0);
+
+	BOOL result = FALSE;
+	if (!_tcsicmp(fname, _T("svchost"))) {
+		LPWSTR *p = argv;
+		for (int i = 0; i + 1 < numArgs; i++) {
+			if (!_tcsicmp(*(p++), _T("-k"))) {
+				_tcscpy_s(lpGroupName, dwSize, *p);
+				result = TRUE;
+				DbgPrint("Found %s svc group: %s", lpServiceName, lpGroupName);
+				break;
+			}
+		}
+	}
+	return result;
+}
+
+BOOL FindServiceGroupProcessId(SC_HANDLE hSCManager, LPTSTR lpServiceGroupName, DWORD *lpdwProcessId) {
+	DWORD uBytes = 0x100000;
+	LPBYTE pvData = malloc(uBytes);
+
+	RegGetValue(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Svchost"), lpServiceGroupName, RRF_RT_REG_MULTI_SZ, NULL, pvData, &uBytes);
+
+	LPTSTR ptr = (LPTSTR)pvData;
+
+	BOOL result = FALSE;
+	while (*ptr) {
+		DWORD dwProcessId;
+		if (QueryServiceProcessId(hSCManager, ptr, &dwProcessId)) {
+			TCHAR group[256];
+			GetServiceGroupName(hSCManager, ptr, group, _countof(group));
+			result = !_tcsicmp(group, lpServiceGroupName);
+		}
+		if (result) {
+			DbgPrint("Found %s pid %d", lpServiceGroupName, dwProcessId);
+			*lpdwProcessId = dwProcessId;
+			break;
+		}
+		ptr += _tcslen(ptr) + 1;
+	}
+	LocalFree(pvData);
+	return result;
+}

wufuc/service.h

@@ -0,0 +1,9 @@
+#pragma once
+
+BOOL QueryServiceBinaryPathName(SC_HANDLE hSCManager, LPCTSTR lpServiceName, LPTSTR lpBinaryPathName, SIZE_T dwSize);
+
+BOOL QueryServiceProcessId(SC_HANDLE hSCManager, LPCTSTR lpServiceName, DWORD *lpdwProcessId);
+
+BOOL GetServiceGroupName(SC_HANDLE hSCManager, LPCTSTR lpServiceName, LPTSTR lpGroupName, SIZE_T dwSize);
+
+BOOL FindServiceGroupProcessId(SC_HANDLE hSCManager, LPTSTR lpServiceGroupName, DWORD *lpdwProcessId);

wufuc/util.c

@@ -0,0 +1,27 @@
+#include <Windows.h>
+#include <VersionHelpers.h>
+#include <tchar.h>
+#include "util.h"
+
+BOOL IsWindows7Or8Point1(void) {
+	return IsWindows7() || IsWindows8Point1();
+}
+
+BOOL IsWindows7(void) {
+	return IsWindows7OrGreater() && !IsWindows8OrGreater();
+}
+
+BOOL IsWindows8Point1(void) {
+	return IsWindows8Point1OrGreater() && !IsWindows10OrGreater();
+}
+
+//#ifdef _DEBUG
+VOID _DbgPrint(LPCTSTR format, ...) {
+	TCHAR buffer[0x1000];
+	va_list argptr;
+	va_start(argptr, format);
+	_vstprintf_s(buffer, _countof(buffer), format, argptr);
+	va_end(argptr);
+	OutputDebugString(buffer);
+}
+//#endif

wufuc/util.h

@@ -0,0 +1,24 @@
+#pragma once
+
+EXTERN_C IMAGE_DOS_HEADER __ImageBase;
+#define HINST_THISCOMPONENT ((HINSTANCE)&__ImageBase)
+
+BOOL IsWindows7Or8Point1(void);
+
+BOOL IsWindows7(void);
+
+BOOL IsWindows8Point1(void);
+
+//#ifdef _DEBUG
+VOID _DbgPrint(LPCTSTR format, ...);
+#define DbgPrint(format, ...) \
+	_DbgPrint(_T(__FUNCTION__) _T(": ") _T(format), ##__VA_ARGS__)
+//#else
+//#define DbgPrint(format, ...)
+//#endif
+
+#ifdef UNICODE
+#define CommandLineToArgv  CommandLineToArgvW
+#else
+#define CommandLineToArgv  CommandLineToArgvA
+#endif // !UNICODE

wufuc/wufuc.vcxproj

@@ -0,0 +1,190 @@
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+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ProjectConfiguration Include="Debug|x64">
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+      <Platform>x64</Platform>
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+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
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+    <VCProjectVersion>15.0</VCProjectVersion>
+    <ProjectGuid>{00F96695-CE41-4C2F-A344-6219DFB4F887}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>wufuc</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
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+    <CharacterSet>Unicode</CharacterSet>
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+    <PlatformToolset>v141</PlatformToolset>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(ProjectDir)bin\$(Configuration)\$(PlatformShortName)\</OutDir>
+    <IntDir>$(ProjectDir)$(BaseIntermediateOutputPath)$(Configuration)\$(PlatformShortName)\</IntDir>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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+    <GenerateManifest>false</GenerateManifest>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
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+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <ModuleDefinitionFile>exports.def</ModuleDefinitionFile>
+      <AdditionalDependencies>Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
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+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <ModuleDefinitionFile>exports.def</ModuleDefinitionFile>
+      <AdditionalDependencies>Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
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+  </ItemDefinitionGroup>
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;WUFUC_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <ModuleDefinitionFile>exports.def</ModuleDefinitionFile>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;WUFUC_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <ModuleDefinitionFile>exports.def</ModuleDefinitionFile>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+      <AdditionalDependencies>Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="core.c" />
+    <ClCompile Include="dllmain.c" />
+    <ClCompile Include="entrypoint.c" />
+    <ClCompile Include="process.c" />
+    <ClCompile Include="service.c" />
+    <ClCompile Include="util.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="exports.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="core.h" />
+    <ClInclude Include="process.h" />
+    <ClInclude Include="service.h" />
+    <ClInclude Include="util.h" />
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+  <ItemGroup>
+    <ResourceCompile Include="version.rc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>