APT_FIN7_MalDoc_Aug18_1

rule APT_FIN7_MalDoc_Aug18_1 {
   meta:
      description = "Detects malicious Doc from FIN7 campaign"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.fireeye.com/blog/threat-research/2018/08/fin7-pursuing-an-enigmatic-and-evasive-global-criminal-operation.html"
      date = "2018-08-01"
      hash1 = "9c12591c850a2d5355be0ed9b3891ccb3f42e37eaf979ae545f2f008b5d124d6"
      id = "f3c430e0-be9a-5c3f-9378-a20ef0492afb"
   strings:
      $s1 = "<photoshop:LayerText>If this document was downloaded from your email, please click  \"Enable editing\" from the yellow bar above" ascii
   condition:
      filesize < 800KB and 1 of them
}