Empire_Get_Keystrokes

rule Empire_Get_Keystrokes {
   meta:
      description = "Detects Empire component - file Get-Keystrokes.ps1"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/adaptivethreat/Empire"
      date = "2016-11-05"
      hash1 = "c36e71db39f6852f78df1fa3f67e8c8a188bf951e96500911e9907ee895bf8ad"
      id = "7fb57a0d-6b65-5ee8-96ef-9af303f15007"
   strings:
      $s1 = "$RightMouse   = ($ImportDll::GetAsyncKeyState([Windows.Forms.Keys]::RButton) -band 0x8000) -eq 0x8000" fullword ascii
   condition:
      ( uint16(0) == 0x7566 and filesize < 30KB and 1 of them ) or all of them
}