BronzeButler_DGet_1_RID2E42

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

Detects malware / hacktool sample from Bronze Butler incident

rule BronzeButler_DGet_1_RID2E42 : APT CHINA DEMO EXE FILE G0060 {
   meta:
      description = "Detects malware / hacktool sample from Bronze Butler incident"
      author = "Florian Roth"
      reference = "https://www.secureworks.com/research/bronze-butler-targets-japanese-businesses"
      date = "2017-10-14 11:06:51"
      score = 75
      customer = "demo"
      license = "CC-BY-NC https://creativecommons.org/licenses/by-nc/4.0/"
      hash1 = "bd81521445639aaa5e3bcb5ece94f73feda3a91880a34a01f92639f8640251d6"
      tags = "APT, CHINA, DEMO, EXE, FILE, G0060"
      minimum_yara = "3.5.0"
      
   strings:
      $s2 = "DGet Tool Made by XZ" fullword ascii
   condition: 
      ( uint16 ( 0 ) == 0x5a4d and filesize < 10KB and 1 of them )
}

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

f9a653ea-9545-419f-87ba-22d9643fb6ed

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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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