[Bug 45998] New: 64-bit FACEIT Anti-cheat client claims " Your system is out of date, you are missing important Windows updates!" ( needs 'wintrust.CryptCATAdminAcquireContext2' stub)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45998

            Bug ID: 45998
           Summary: 64-bit FACEIT Anti-cheat client claims "Your system is
                    out of date, you are missing important Windows
                    updates!" (needs
                    'wintrust.CryptCATAdminAcquireContext2' stub)
           Product: Wine
           Version: 3.18
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wintrust
          Assignee: wine-bugs at winehq.org
          Reporter: focht at gmx.net
      Distribution: ---

Hello folks,

as it says.

Download: https://anticheat-client.faceit.com/FACEITInstaller_64.exe

--- snip ---
$ pwd
/home/focht/.wine/drive_c/Program Files/FACEIT AC

$ WINEDEBUG=+seh,+relay wine ./faceitclient.exe >>log.txt 2>&1
...
002c:Call KERNEL32.LoadLibraryA(141215440 "wintrust.dll") ret=1400b1653
002c:Ret  KERNEL32.LoadLibraryA() retval=7fd071b90000 ret=1400b1653
002c:Call KERNEL32.GetProcAddress(7fd071b90000,141215450
"CryptCATAdminAcquireContext2") ret=1400b1670
002c:Ret  KERNEL32.GetProcAddress() retval=00000000 ret=1400b1670
002c:Call KERNEL32.FreeLibrary(7fd071b90000) ret=1400b167c
002c:Ret  KERNEL32.FreeLibrary() retval=00000001 ret=1400b167c
002c:Call ntdll.RtlAllocateHeap(00010000,00000000,00000050) ret=1411adc3c
002c:Ret  ntdll.RtlAllocateHeap() retval=000b09e0 ret=1411adc3c
002c:Call user32.MessageBoxA(00000000,000b09e0 "Your system is out of date, you
are missing important Windows updates!",00000000,00000010) ret=1400edd5d 
...
--- snip ---

Microsoft Docs:

https://docs.microsoft.com/en-us/windows/desktop/api/mscat/nf-mscat-cryptcatadminacquirecontext2

--- quote ---
The CryptCATAdminAcquireContext2 function acquires a handle to a catalog
administrator context for a given hash algorithm and hash policy.

You can use this handle in subsequent calls to the following functions:

    CryptCATAdminAddCatalog
    CryptCATAdminEnumCatalogFromHash
    CryptCATAdminRemoveCatalog

This function has no associated import library. You must use the LoadLibrary
and GetProcAddress functions to dynamically link to Wintrust.dll.
Syntax

BOOL CryptCATAdminAcquireContext2(
  HCATADMIN               *phCatAdmin,
  const GUID              *pgSubsystem,
  PCWSTR                  pwszHashAlgorithm,
  PCCERT_STRONG_SIGN_PARA pStrongHashPolicy,
  DWORD                   dwFlags
);

--- quote ---

It's Windows 8+ API.

With a FIXME stub that prints parameters, returning FALSE:

--- snip ---
...
0064:Call KERNEL32.LoadLibraryA(141215440 "wintrust.dll") ret=1400b1653
0064:Ret  KERNEL32.LoadLibraryA() retval=7f9b71860000 ret=1400b1653
0064:Call KERNEL32.GetProcAddress(7f9b71860000,141215450
"CryptCATAdminAcquireContext2") ret=1400b1670
0064:Ret  KERNEL32.GetProcAddress() retval=7f9b718680d0 ret=1400b1670
0064:Call KERNEL32.FreeLibrary(7f9b71860000) ret=1400b167c
0064:Ret  KERNEL32.FreeLibrary() retval=00000001 ret=1400b167c 
--- snip ---

I didn't see any call to the stub, so one might get away even with
auto-generated unimplemented stub.

The client executable has some anti-debug trickery and custom obfuscation
scheme. Crashes later due to other insufficiencies though.

$ sha1sum FACEITInstaller_64.exe 
ed8f8c2f6ec2d113bed882faa9d8b8a7a3b56a3c  FACEITInstaller_64.exe

$ du -sh FACEITInstaller_64.exe 
85M    FACEITInstaller_64.exe

$ wine --version
wine-3.18

Regards

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