shimrat


Description

Detects ShimRat and the ShimRat loader

Query · yara

strings:
      $dll = ".dll"
      $dat = ".dat"
      $headersig = "QWERTYUIOPLKJHG"
      $datasig = "MNBVCXZLKJHGFDS"
      $datamarker1 = "Data$$00"
      $datamarker2 = "Data$$01%c%sData"
      $cmdlineformat = "ping localhost -n 9 /c %s > nul"
      $demoproject_keyword1 = "Demo"
      $demoproject_keyword2 = "Win32App"
      $comspec = "COMSPEC"
      $shim_func1 = "ShimMain"
      $shim_func2 = "NotifyShims"
      $shim_func3 = "GetHookAPIs"
   condition:
      ($dll and $dat and $headersig and $datasig) or
      ($datamarker1 and $datamarker2) or
      ($cmdlineformat and $demoproject_keyword1 and $demoproject_keyword2 and $comspec) or
      ($dll and $dat and $shim_func1 and $shim_func2 and $shim_func3)
Raw source shimrat · YARA
Esc
Published by Neo23x0/signature-base ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
rule shimrat {
   meta:
      description = "Detects ShimRat and the ShimRat loader"
      author = "Yonathan Klijnsma (yonathan.klijnsma@fox-it.com)"
      date = "20/11/2015"
      id = "21431895-1180-5552-8e82-1589992ffa1d"
   strings:
      $dll = ".dll"
      $dat = ".dat"
      $headersig = "QWERTYUIOPLKJHG"
      $datasig = "MNBVCXZLKJHGFDS"
      $datamarker1 = "Data$$00"
      $datamarker2 = "Data$$01%c%sData"
      $cmdlineformat = "ping localhost -n 9 /c %s > nul"
      $demoproject_keyword1 = "Demo"
      $demoproject_keyword2 = "Win32App"
      $comspec = "COMSPEC"
      $shim_func1 = "ShimMain"
      $shim_func2 = "NotifyShims"
      $shim_func3 = "GetHookAPIs"
   condition:
      ($dll and $dat and $headersig and $datasig) or
      ($datamarker1 and $datamarker2) or
      ($cmdlineformat and $demoproject_keyword1 and $demoproject_keyword2 and $comspec) or
      ($dll and $dat and $shim_func1 and $shim_func2 and $shim_func3)
}

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