PP_CN_APT_ZeroT_5

rule PP_CN_APT_ZeroT_5 {
   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 = "74dd52aeac83cc01c348528a9bcb20bbc34622b156f40654153e41817083ba1d"
      id = "2a7c6a36-aace-562e-bbc4-425c1d93fab1"
   strings:
      $x1 = "dbozcb" fullword ascii

      $s1 = "nflogger.dll" fullword ascii
      $s2 = "/svchost.exe" fullword ascii
      $s3 = "1207.htm" fullword ascii
      $s4 = "/1207.htm" fullword ascii
   condition:
      ( uint16(0) == 0x5449 and filesize < 1000KB and 1 of ($x*) and 1 of ($s*) ) or ( all of them )
}