PP_CN_APT_ZeroT_7

rule PP_CN_APT_ZeroT_7 {
   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 = "fc2d47d91ad8517a4a974c4570b346b41646fac333d219d2f1282c96b4571478"
      id = "e9cdca86-84a8-5673-935c-c319b523674b"
   strings:
      $s1 = "RasTls.dll" fullword ascii
      $s2 = "RasTls.exe" fullword ascii
      $s4 = "LOADER ERROR" fullword ascii
      $s5 = "The procedure entry point %s could not be located in the dynamic link library %s" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 1000KB and all of them )
}