Empire_PowerShell_Framework_Gen2

rule Empire_PowerShell_Framework_Gen2 {
   meta:
      description = "Detects Empire component"
      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"
      super_rule = 1
      hash1 = "1be3e3ec0e364db0c00fad2c59c7041e23af4dd59c4cc7dc9dcf46ca507cd6c8"
      hash3 = "a3428a7d4f9e677623fadff61b2a37d93461123535755ab0f296aa3b0396eb28"
      hash5 = "4725a57a5f8b717ce316f104e9472e003964f8eae41a67fd8c16b4228e3d00b3"
      hash6 = "61e5ca9c1e8759a78e2c2764169b425b673b500facaca43a26c69ff7e09f62c4"
      hash8 = "eaff29dd0da4ac258d85ecf8b042d73edb01b4db48c68bded2a8b8418dc688b5"
      id = "eab277ca-0dd4-5035-82aa-1ac2120bac94"
   strings:
      $x1 = "$DllMain = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($DllMainPtr, $DllMainDelegate)" fullword ascii
      $s20 = "#Shellcode: CallDllMain.asm" fullword ascii
   condition:
      ( uint16(0) == 0x7566 and filesize < 4000KB and 1 of them ) or all of them
}