SUSP_PY_Import_Statement_Apr24_1_RID32CA

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

Detects suspicious Python import statement and socket usage often found in Python reverse shells

rule SUSP_PY_Import_Statement_Apr24_1_RID32CA : DEMO SCRIPT SUSP T1059_006 {
   meta:
      description = "Detects suspicious Python import statement and socket usage often found in Python reverse shells"
      author = "Florian Roth"
      reference = "https://www.volexity.com/blog/2024/04/12/zero-day-exploitation-of-unauthenticated-remote-code-execution-vulnerability-in-globalprotect-cve-2024-3400/"
      date = "2024-04-15 14:20:11"
      score = 65
      customer = "demo"
      license = "CC-BY-NC https://creativecommons.org/licenses/by-nc/4.0/"
      
      tags = "DEMO, SCRIPT, SUSP, T1059_006"
      minimum_yara = "3.5.0"
      
   strings:
      $x1 = "import sys,socket,os,pty;s=socket.socket(" 
   condition: 
      1 of them
}

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

e47564eb-e117-428d-90e3-5881d6a33cf2

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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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