OpCloudHopper_Malware_6

rule OpCloudHopper_Malware_6 {
   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 = "aabebea87f211d47f72d662e2449009f83eac666d81b8629cf57219d0ce31af6"
      id = "b7578cbd-0f41-5dec-86f6-5792c305a182"
   strings:
      $s1 = "YDNCCOVZKXGRVQPOBRNXXQVNQYXBBCONCOQEGYELIRBEYOVODGXCOXTHXPCXNGUCHRVWKKZSYQMAOWWGHRSPRGSEUWYMEFZHRTHO" fullword ascii
      $s2 = "psychiatry.dat" fullword ascii
      $s3 = "meekness.lnk" fullword ascii
      $s4 = "SOFTWARE\\EGGORG" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 300KB and 1 of them )
}