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DITEKSHEN_MALWARE_Win_Poullight

Detects Poullight infostealer

MalwarePoullightditekSHen 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 Poullight infostealer

Associated malware family: Poullight.

Targets: Windows PE.

It defines 11 patterns (11 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

malware-win-poullight.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Poullight : FILE
{
	meta:
		description = "Detects Poullight infostealer"
		author = "ditekSHen"
		id = "c80143f8-9c44-5e96-b1ff-2adb4bf031e4"
		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#L2155-L2176"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "e60ffb10892d35664a088d69c965e130f87bb1a59c257d484bdfe5085074bccd"
		score = 75
		quality = 75
		tags = "FILE"
		snort2_sid = "920074-920075"
		snort3_sid = "920074-920075"
		clamav_sig = "MALWARE.Win.Trojan.Poullight"

	strings:
		$s1 = "zipx" fullword wide
		$s2 = "{0}Windows Defender.exe" fullword wide
		$s3 = "pll_test" fullword wide
		$s4 = "loginusers.vdf" wide
		$s5 = "Stealer by Nixscare" wide
		$s6 = "path_lad" fullword ascii
		$s7 = "<CheckVM>" ascii
		$s8 = "Poullight.Properties" ascii
		$s9 = "</ulfile>" fullword wide
		$s10 = "{0}processlist.txt" fullword wide
		$s11 = "{0}Browsers\\Passwords.txt" fullword wide

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

Strings (11 patterns)

IdentifierTypeValueModifiers
$s1text"zipx"fullword wide
$s2text"{0}Windows Defender.exe"fullword wide
$s3text"pll_test"fullword wide
$s4text"loginusers.vdf"wide
$s5text"Stealer by Nixscare"wide
$s6text"path_lad"fullword ascii
$s7text"<CheckVM>"ascii
$s8text"Poullight.Properties"ascii
$s9text"</ulfile>"fullword wide
$s10text"{0}processlist.txt"fullword wide
$s11text"{0}Browsers\\Passwords.txt"fullword wide

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: c80143f8-9c44-5e96-b1ff-2adb4bf031e4

Metadata

snort2_sid920074-920075
snort3_sid920074-920075
clamav_sigMALWARE.Win.Trojan.Poullight

Tags:FILE