SUSP_Size_of_ASUS_TuningTool

YARA detection rule by Florian Roth (Nextron Systems) · NOASSERTION

Detects an ASUS tuning tool with a suspicious size

rule SUSP_Size_of_ASUS_TuningTool {
   meta:
      description = "Detects an ASUS tuning tool with a suspicious size"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.welivesecurity.com/2018/10/17/greyenergy-updated-arsenal-dangerous-threat-actors/"
      date = "2018-10-17"
      modified = "2022-12-21"
      score = 60
      noarchivescan = 1
      hash1 = "d4e97a18be820a1a3af639c9bca21c5f85a3f49a37275b37fd012faeffcb7c4a"
      id = "d22a1bf9-55d6-5cb4-9537-ad13b23af4d1"
   strings:
      $s1 = "\\Release\\ASGT.pdb" ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 300KB and filesize > 70KB and all of them
}

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

81e70dd0-0f44-4ffe-8b58-eda409fe5e5c

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

[[ currentRule.title ]]

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