PP_CN_APT_ZeroT_4_RID2CCB

YARA detection rule by Florian Roth · CC-BY-NC https://creativecommons.org/licenses/by-nc/4.0/

Detects malware from the Proofpoint CN APT ZeroT incident

rule PP_CN_APT_ZeroT_4_RID2CCB : APT CHINA DEMO EXE FILE {
   meta:
      description = "Detects malware from the Proofpoint CN APT ZeroT incident"
      author = "Florian Roth"
      reference = "https://www.proofpoint.com/us/threat-insight/post/APT-targets-russia-belarus-zerot-plugx"
      date = "2017-02-03 10:04:21"
      score = 75
      customer = "demo"
      license = "CC-BY-NC https://creativecommons.org/licenses/by-nc/4.0/"
      hash1 = "a9519d2624a842d2c9060b64bb78ee1c400fea9e43d4436371a67cbf90e611b8"
      tags = "APT, CHINA, DEMO, EXE, FILE"
      minimum_yara = "3.5.0"
      
   strings:
      $s1 = "Mcutil.dll" fullword ascii
      $s2 = "mcut.exe" fullword ascii
   condition: 
      ( uint16 ( 0 ) == 0x5a4d and filesize < 1000KB and all of them )
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

6991ec22-30cb-4b81-88d7-3ec54d072eb4

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

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Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

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What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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