WannCry_m_vbs

rule WannCry_m_vbs {
   meta:
      description = "Detects WannaCry Ransomware VBS"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://goo.gl/HG2j5T"
      date = "2017-05-12"
      hash1 = "51432d3196d9b78bdc9867a77d601caffd4adaa66dcac944a5ba0b3112bbea3b"
      id = "a8f13bd2-984d-5c8c-ac53-7d442e222850"
   strings:
      $x1 = ".TargetPath = \"C:\\@" ascii
      $x2 = ".CreateShortcut(\"C:\\@" ascii
      $s3 = " = WScript.CreateObject(\"WScript.Shell\")" ascii
   condition:
      ( uint16(0) == 0x4553 and filesize < 1KB and all of them )
}