YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_Apt_RU_Turla_Kazuar_Debugview_Pefeatures

Turla mimicking SysInternals Tools- peFeatures

APT / threat actorKazuarSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X

Author: JAG-S
Date: 2020-05-28
Modified: 2023-12-05
Score / Quality: 85 / 85

What this rule detects

Turla mimicking SysInternals Tools- peFeatures

Associated malware family: Kazuar.

Targets: Windows PE.

It has no patterns: the condition alone decides (modules, file properties or other rules). YARA modules used: pe.

Summary generated from the rule's metadata and condition.

Rule source

Download .yar

Includes the imports needed to compile it on its own.

apt-ru-turla-kazuar-debugview-pefeatures.yarDetection Rule License 1.1

import "pe"

rule SIGNATURE_BASE_Apt_RU_Turla_Kazuar_Debugview_Pefeatures : FILE
{
	meta:
		description = "Turla mimicking SysInternals Tools- peFeatures"
		author = "JAG-S"
		id = "0a1675c0-8645-5288-9ef6-e68ffbfe0c3b"
		date = "2020-05-28"
		modified = "2023-12-05"
		reference = "https://www.epicturla.com/blog/sysinturla"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/apt_turla_kazuar.yar#L15-L59"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "1749c96cc1a4beb9ad4d6e037e40902fac31042fa40152f1d3794f49ed1a2b5c"
		hash = "44cc7f6c2b664f15b499c7d07c78c110861d2cc82787ddaad28a5af8efc3daac"
		logic_hash = "10c2e47e5c1885c7dc19d1fb7933c9b15911cbe4c6fba99b7f763738ae934126"
		score = 85
		quality = 85
		tags = "FILE"
		version = "2.0"

	condition:
		uint16( 0 ) == 0x5a4d and ( pe.version_info [ "LegalCopyright" ] == "Test Copyright" and ( ( pe.version_info [ "ProductName" ] == "Sysinternals DebugView" and pe.version_info [ "Description" ] == "Sysinternals DebugView" ) or ( pe.version_info [ "FileVersion" ] == "4.80.0.0" and pe.version_info [ "Comments" ] == "Sysinternals DebugView" ) or ( pe.version_info [ "OriginalName" ] contains "DebugView.exe" and pe.version_info [ "InternalName" ] contains "DebugView.exe" ) or ( pe.version_info [ "OriginalName" ] == "Agent.exe" and pe.version_info [ "InternalName" ] == "Agent.exe" ) ) )
}

Condition

uint16( 0 ) == 0x5a4d and ( pe.version_info [ "LegalCopyright" ] == "Test Copyright" and ( ( pe.version_info [ "ProductName" ] == "Sysinternals DebugView" and pe.version_info [ "Description" ] == "Sysinternals DebugView" ) or ( pe.version_info [ "FileVersion" ] == "4.80.0.0" and pe.version_info [ "Comments" ] == "Sysinternals DebugView" ) or ( pe.version_info [ "OriginalName" ] contains "DebugView.exe" and pe.version_info [ "InternalName" ] contains "DebugView.exe" ) or ( pe.version_info [ "OriginalName" ] == "Agent.exe" and pe.version_info [ "InternalName" ] == "Agent.exe" ) ) )

In plain words (Heuristic)

The file must start with “MZ” — a Windows executable (PE).
Uses the pe module.

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References

https://www.epicturla.com/blog/sysinturla

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

1749c96cc1a4beb9ad4d6e037e40902fac31042fa40152f1d3794f49ed1a2b5c
44cc7f6c2b664f15b499c7d07c78c110861d2cc82787ddaad28a5af8efc3daac

Licence & attribution

Author: JAG-S

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 0a1675c0-8645-5288-9ef6-e68ffbfe0c3b

Metadata

version	2.0

Tags:FILE

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