Molerats_Jul17_Sample_Dropper

rule Molerats_Jul17_Sample_Dropper {
   meta:
      description = "Detects Molerats sample dropper SFX - July 2017"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://mymalwareparty.blogspot.de/2017/07/operation-desert-eagle.html"
      date = "2017-07-07"
      hash1 = "ad0b3ac8c573d84c0862bf1c912dba951ec280d31fe5b84745ccd12164b0bcdb"
      id = "b4622373-b496-51de-abaa-caa665b558b3"
   strings:
      $s1 = "Please remove %s from %s folder. It is unsecure to run %s until it is done." fullword wide
      $s2 = "sfxrar.exe" fullword ascii
      $s3 = "attachment.hta" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 1000KB and all of them )
}