PP_CN_APT_ZeroT_3

rule PP_CN_APT_ZeroT_3 {
   meta:
      description = "Detects malware from the Proofpoint CN APT ZeroT incident"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.proofpoint.com/us/threat-insight/post/APT-targets-russia-belarus-zerot-plugx"
      date = "2017-02-03"
      hash1 = "ee2e2937128dac91a11e9bf55babc1a8387eb16cebe676142c885b2fc18669b2"
      id = "99aa29cf-d962-5a3d-bd28-6486c40822bb"
   strings:
      $s1 = "/svchost.exe" fullword ascii
      $s2 = "RasTls.dll" fullword ascii
      $s3 = "20160620.htm" fullword ascii
      $s4 = "* $l&$" fullword ascii
      $s5 = "dfjhmh" fullword ascii
      $s6 = "/20160620.htm" fullword ascii
   condition:
      ( uint16(0) == 0x5449 and filesize < 1000KB and 3 of them ) or ( all of them )
}