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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_SUSP_PY_Import_Statement_Apr24_1

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

Suspicious / huntingSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Florian Roth
Date
2024-04-15
Modified
2025-03-21
Score / Quality
65 / 85

What this rule detects

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

It defines 1 patterns (1 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
susp-py-import-statement-apr24-1.yarDetection Rule License 1.1
rule SIGNATURE_BASE_SUSP_PY_Import_Statement_Apr24_1
{
	meta:
		description = "Detects suspicious Python import statement and socket usage often found in Python reverse shells"
		author = "Florian Roth"
		id = "8e05f9a1-40a8-5d01-9e45-8779b0ff7a45"
		date = "2024-04-15"
		modified = "2025-03-21"
		reference = "https://www.volexity.com/blog/2024/04/12/zero-day-exploitation-of-unauthenticated-remote-code-execution-vulnerability-in-globalprotect-cve-2024-3400/"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/vuln_paloalto_cve_2024_3400_apr24.yar#L67-L79"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "d5c199d9c3e449ca282f0ca91c94ac783709299b3489f7cec38177a2f843b504"
		score = 65
		quality = 85
		tags = ""

	strings:
		$x1 = "import sys,socket,os,pty;s=socket.socket("

	condition:
		1 of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$x1text"import sys,socket,os,pty;s=socket.socket("

Condition

1 of them

In plain words (Heuristic)

  • At least 1 patterns in the rule must match.

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References

Licence & attribution

Author: Florian Roth

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 8e05f9a1-40a8-5d01-9e45-8779b0ff7a45

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