APT_Area1_SSF_PlugX

YARA detection rule by Area 1 · NOASSERTION

Detects send tool used in phishing campaign reported by Area 1 in December 2018

rule APT_Area1_SSF_PlugX {
   meta:
      description = "Detects send tool used in phishing campaign reported by Area 1 in December 2018"
      reference = "https://cdn.area1security.com/reports/Area-1-Security-PhishingDiplomacy.pdf"
      date = "2018-12-19"
      author = "Area 1"
      id = "a5b4e781-f0d1-55df-926c-2d321aa48139"
   strings:
      $feature_call = { 8b 0? 56 68 ?? ?? ?? ?? 68 ?? ?? ?? ?? 68 ?? ?? ?? ??
         6a 07 6a ff ff d0 8b f0 85 f6 74 14 }
      $keylogger_reg = { 8b 4d 08 6a 0c 6a 01 8d 55 f4 52 c7 45 f4 01 00 06 00
         c7 45 f8 00 01 00 00 89 4d fc ff d0 85 c0 75 1d }
      $file_op = { 55 8b ec 83 ec 20 0f b7 56 18 8b 46 10 66 8b 4e 14 89 45 e4
         8d 44 32 10 66 89 4d f0 0f b7 4e 1a 57 89 45 e8 33 ff 8d 45 e0 8d 54
         31 10 50 89 7d e0 89 55 ec c7 45 fa ?? ?? ?? ?? 89 7d f2 89 7d f6 ff
         15 1c 43 02 10 }
      $ver_cmp = { 0f b6 8d b0 fe ff ff 0f b6 95 b4 fe ff ff 66 c1 e1 08 0f b7
         c1 0b c2 3d 02 05 00 00 7f 2c }
      $regedit = { c7 06 23 01 12 20 c7 46 04 01 90 00 00 89 5e 0c 89 5e 08 e8
         51 fb ff ff 8b 4d 08 8b 50 38 68 30 75 00 00 56 51 ff d2 }
      $get_device_caps = { 8b 1d ?? ?? ?? ?? 6a 08 50 ff d3 0f b7 56 12 8b c8 0f af ca
         b8 1f 85 eb 51 f7 e9 c1 fa 05 8b c2 c1 e8 1f 03 c2 89 45 f8 8b 45 f0 6a 0a 50 ff d3
         0f b7 56 14 8b c8 0f af ca b8 1f 85 eb 51 }
   condition:
      3 of them
}

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

bfee576d-c931-418d-94fb-4624f81a0107

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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

[[ reason ]]

What does this mean?

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.

[[ reason ]]

What do these messages mean?

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

[[ currentRule.title ]]

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