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DITEKSHEN_INDICATOR_TOOL_Gogoprocdump

Detects GoGo (lsass) process dump tool

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 GoGo (lsass) process dump tool

Targets: Windows PE.

It defines 6 patterns (6 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-tool-gogoprocdump.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_TOOL_Gogoprocdump : FILE
{
	meta:
		description = "Detects GoGo (lsass) process dump tool"
		author = "ditekSHen"
		id = "f92845c6-f8ae-50d0-97ea-cfa72051c2de"
		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#L1573-L1586"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "f410882e4c6c8b65e7d3c192cf94bf99d61cf54dc21d80cdf17193b34752c576"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "C:\\temp" ascii
		$s2 = "gogo" fullword ascii
		$s3 = "/DumpLsass-master/SilentProcessExit/" ascii
		$s4 = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zone" ascii
		$s5 = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\lsass.exe" ascii
		$s6 = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\lsass.exe" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 4 of them
}

Strings (6 patterns)

IdentifierTypeValueModifiers
$s1text"C:\\temp"ascii
$s2text"gogo"fullword ascii
$s3text"/DumpLsass-master/SilentProcessExit/"ascii
$s4text"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zone"ascii
$s5text"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\lsass.exe"ascii
$s6text"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\lsass.exe"ascii

Condition

uint16( 0 ) == 0x5a4d and 4 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 4 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: f92845c6-f8ae-50d0-97ea-cfa72051c2de

Tags:FILE

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