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DITEKSHEN_MALWARE_Win_LOLKEK

Detects LOLKEK / GlobeImposter ransowmare

MalwareLOLKEKditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekShen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

Detects LOLKEK / GlobeImposter ransowmare

Associated malware family: LOLKEK.

Targets: Windows PE.

It defines 10 patterns (10 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-lolkek.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_LOLKEK : FILE
{
	meta:
		description = "Detects LOLKEK / GlobeImposter ransowmare"
		author = "ditekShen"
		id = "96374c8d-2ef7-5706-a96f-27d60f73f8c1"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L10847-L10864"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "047492f8b7b56c75cfdcc4359de2b02a76cf9591b902171785806987e552995a"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "$Recycle.bin" fullword wide
		$s2 = "\\\\?\\%c:" fullword wide
		$s3 = ".MMM" fullword wide
		$s4 = "ReadMe.txt" fullword wide
		$s5 = "select * from Win32_ShadowCopy" fullword wide
		$s6 = "Win32_ShadowCopy.ID='%s'" fullword wide
		$s7 = "W3CRYPTO LOCKER" ascii
		$s8 = "http://mmcb" ascii
		$s9 = "yip.su/2QstD5" ascii
		$s10 = "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AddInProcess32.exe" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 7 of them
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$s1text"$Recycle.bin"fullword wide
$s2text"\\\\?\\%c:"fullword wide
$s3text".MMM"fullword wide
$s4text"ReadMe.txt"fullword wide
$s5text"select * from Win32_ShadowCopy"fullword wide
$s6text"Win32_ShadowCopy.ID='%s'"fullword wide
$s7text"W3CRYPTO LOCKER"ascii
$s8text"http://mmcb"ascii
$s9text"yip.su/2QstD5"ascii
$s10text"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AddInProcess32.exe"ascii

Condition

uint16( 0 ) == 0x5a4d and 7 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 7 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: 96374c8d-2ef7-5706-a96f-27d60f73f8c1

Tags:FILE

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