Skip to content
yararules.org
Menu

YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_TRAT

TRAT payload

MalwareTRATditekSHen 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

TRAT payload

Associated malware family: TRAT.

Targets: Windows PE.

It defines 7 patterns (7 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-trat.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_TRAT : FILE
{
	meta:
		description = "TRAT payload"
		author = "ditekSHen"
		id = "15f80970-6bc7-5e29-86d6-f7529a10d227"
		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#L1715-L1730"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "b8474c74cd9f21fcb3a8ae1c7a7a0a801f0f117782e9803cdae39daf7f0f8b2f"
		score = 75
		quality = 75
		tags = "FILE"
		clamav_sig = "MALWARE.Win.Trojan.TRAT"

	strings:
		$s1 = "^STEAM_0:[0-1]:([0-9]{1,10})$" fullword wide
		$s2 = "^7656119([0-9]{10})$" fullword wide
		$s3 = "Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)" ascii
		$s4 = "\"schtasks\", \"/delete /tn UpdateWindows /f\");" ascii
		$s5 = "ProcessWindowStyle.Hidden" ascii
		$s6 = "+<>c+<<ListCommands>" ascii
		$s7 = "//B //Nologo *Y" fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and 5 of them
}

Strings (7 patterns)

IdentifierTypeValueModifiers
$s1text"^STEAM_0:[0-1]:([0-9]{1,10})$"fullword wide
$s2text"^7656119([0-9]{10})$"fullword wide
$s3text"Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)"ascii
$s4text"\"schtasks\", \"/delete /tn UpdateWindows /f\");"ascii
$s5text"ProcessWindowStyle.Hidden"ascii
$s6text"+<>c+<<ListCommands>"ascii
$s7text"//B //Nologo *Y"fullword ascii

Condition

uint16( 0 ) == 0x5a4d and 5 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 5 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 15f80970-6bc7-5e29-86d6-f7529a10d227

Metadata

clamav_sigMALWARE.Win.Trojan.TRAT

Tags:FILE

Related rules