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DITEKSHEN_INDICATOR_KB_Gobuildid_Snatch

Detects Golang Build IDs in known bad samples

Suspicious / huntingSnatchditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2021-01-21
Modified
2024-01-23
Score / Quality
75 / 75

What this rule detects

Detects Golang Build IDs in known bad samples

Associated malware family: Snatch.

Targets: Windows PE.

It defines 3 patterns (3 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-kb-gobuildid-snatch.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_KB_Gobuildid_Snatch : FILE
{
	meta:
		description = "Detects Golang Build IDs in known bad samples"
		author = "ditekSHen"
		id = "6ab6b7bc-c905-5ff9-8059-a2d512ba13b3"
		date = "2021-01-21"
		modified = "2024-01-23"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_knownbad_id.yar#L1600-L1610"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "5a19c791ed0d829c4c97e35cfa604a8716bad3f02632712903d765db95ba87f6"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "Go build ID: \"8C2VvDTH-MuUPx8tL42E/PWF9iuE2j_Zt0ANsTlty/c64swZ5TtuaIpHuEFmga/6sS0KWNryc-YAduDnWWO\"" ascii
		$s2 = "Go build ID: \"UBrfJ_wztDfCHWakqvlV/LhzfkJwvKFrNhKCHtU9_/sveCupt8GVbvu6WZiyA-/GcimfL_TPl6FTPPriBDr\"" ascii
		$s3 = "Go build ID: \"5zCy9jt7UZaIs5YPk4tt/1Yt6v7gCpDG---pRFyW-/7729nLSeKJik31ftz_Ve/Z5EVG3lWak3ynxNrJ4ih\"" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 1 of them
}

Strings (3 patterns)

IdentifierTypeValueModifiers
$s1text"Go build ID: \"8C2VvDTH-MuUPx8tL42E/PWF9iuE2j_Zt0ANsTlty/c64swZ5TtuaIpHuEFmga/6sS0KWNryc-YAduDnWWO\""ascii
$s2text"Go build ID: \"UBrfJ_wztDfCHWakqvlV/LhzfkJwvKFrNhKCHtU9_/sveCupt8GVbvu6WZiyA-/GcimfL_TPl6FTPPriBDr\""ascii
$s3text"Go build ID: \"5zCy9jt7UZaIs5YPk4tt/1Yt6v7gCpDG---pRFyW-/7729nLSeKJik31ftz_Ve/Z5EVG3lWak3ynxNrJ4ih\""ascii

Condition

uint16( 0 ) == 0x5a4d and 1 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 1 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: 6ab6b7bc-c905-5ff9-8059-a2d512ba13b3

Tags:FILE

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