OpCloudHopper_Malware_10

rule OpCloudHopper_Malware_10 {
   meta:
      description = "Detects malware from Operation Cloud Hopper"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.pwc.co.uk/issues/cyber-security-data-privacy/insights/operation-cloud-hopper.html"
      date = "2017-04-03"
      hash1 = "5b4028728d8011a2003b7ce6b9ec663dd6a60b7adcc20e2125da318e2d9e13f4"
      id = "a5d3237e-d6db-54ba-bfa6-f642f8096819"
   strings:
      $x1 = "bakshell.EXE" fullword wide
      $s19 = "bakshell Applicazione MFC" fullword wide
      $op0 = { 83 c4 34 c3 57 8b ce e8 92 18 00 00 68 20 70 40 } /* Opcode */
   condition:
      ( uint16(0) == 0x5a4d and filesize < 200KB and 2 of them )
}