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DITEKSHEN_INDICATOR_TOOLS_Rsockstun

Detects rsockstun

Suspicious / huntingditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekShen
Date
2020-11-06
Modified
2024-09-25
Score / Quality
75 / 75

What this rule detects

Detects rsockstun

Targets: Windows PE.

It defines 5 patterns (5 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-tools-rsockstun.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_TOOLS_Rsockstun : FILE
{
	meta:
		description = "Detects rsockstun"
		author = "ditekShen"
		id = "a284a607-abea-5914-ad3a-84eaff733ee0"
		date = "2020-11-06"
		modified = "2024-09-25"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_tools.yar#L1769-L1781"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "4ad0ac389bf8961b0dd987a72d5dd534e5e3cc673f0e07aa49d39d1fd3f5f53e"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "main.connectviaproxy" ascii
		$s2 = "main.connectForSocks" ascii
		$s3 = "main.listenForClients" ascii
		$s4 = "main.listenForSocks" ascii
		$s5 = "Proxy-Authorization: NTLM TlRMTVNTUAABAAAABoIIAAAAAAAAAAAAAAAAAAAAAAA=" ascii

	condition:
		( uint16( 0 ) == 0x5a4d or uint16( 0 ) == 0x457f ) and all of them
}

Strings (5 patterns)

IdentifierTypeValueModifiers
$s1text"main.connectviaproxy"ascii
$s2text"main.connectForSocks"ascii
$s3text"main.listenForClients"ascii
$s4text"main.listenForSocks"ascii
$s5text"Proxy-Authorization: NTLM TlRMTVNTUAABAAAABoIIAAAAAAAAAAAAAAAAAAAAAAA="ascii

Condition

( uint16( 0 ) == 0x5a4d or uint16( 0 ) == 0x457f ) and all of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • All patterns in the rule must match.

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References

Licence & attribution

Author: ditekShen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: a284a607-abea-5914-ad3a-84eaff733ee0

Tags:FILE

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