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YARA · Mandiant red team tool countermeasures

FIREEYE_RT_APT_Hacktool_Win64_EXCAVATOR_2

No description has been set in the source file - FireEye-RT

APT / actorMandiant red team tool countermeasuresBSD 2-Clause LicenseCompila con YARA-X
Autor
FireEye
Fecha
2020-12-02
Modificada
2020-12-09
Puntuación / Calidad
75 / 75

Qué detecta esta regla

No description has been set in the source file - FireEye-RT

Objetivos: PE de Windows.

Define 4 patrones (2 de texto, 2 hex, 0 regex).

Resumen generado a partir de los metadatos y la condición de la regla.

Código de la regla

Descargar .yar
apt-hacktool-win64-excavator-2.yarBSD 2-Clause License
rule FIREEYE_RT_APT_Hacktool_Win64_EXCAVATOR_2 : FILE
{
	meta:
		description = "No description has been set in the source file - FireEye-RT"
		author = "FireEye"
		id = "4b7640e8-5621-5cc3-8ac9-84347f23f5eb"
		date = "2020-12-02"
		date = "2020-12-02"
		modified = "2020-12-09"
		reference = "https://github.com/mandiant/red_team_tool_countermeasures/"
		source_url = "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/EXCAVATOR/production/yara/APT_HackTool_Win64_EXCAVATOR_2.yar#L4-L19"
		license_url = "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
		hash = "4fd62068e591cbd6f413e1c2b8f75442"
		logic_hash = "14263c17323cd78df10f7f101bd7a9c74f7818b34a2e42125d45205067399381"
		score = 75
		quality = 75
		tags = "FILE"
		rev = 1

	strings:
		$api1 = "PssCaptureSnapshot" fullword
		$api2 = "MiniDumpWriteDump" fullword
		$dump = { C7 [2-5] FD 03 00 AC 4C 8D 4D ?? 41 B8 1F 00 10 00 8B [2-5] 48 8B 4D ?? E8 [4] 89 [2-5] 83 [2-5] 00 74 ?? 48 8B 4D ?? FF 15 [4] 33 C0 E9 [4] 41 B8 10 00 00 00 33 D2 48 8D 8D [4] E8 [4] 48 8D 05 [4] 48 89 85 [4] 48 C7 85 [8] 48 C7 44 24 30 00 00 00 00 C7 44 24 28 80 00 00 00 C7 44 24 20 01 00 00 00 45 33 C9 45 33 C0 BA 00 00 00 10 48 8D 0D [4] FF 15 [4] 48 89 85 [4] 48 83 BD [4] FF 75 ?? 48 8B 4D ?? FF 15 [4] 33 C0 EB [0-17] 48 8D [5] 48 89 ?? 24 30 48 C7 44 24 28 00 00 00 00 48 C7 44 24 20 00 00 00 00 41 B9 02 00 00 00 4C 8B 85 [4] 8B [1-5] 48 8B 4D ?? E8 }
		$enable_dbg_pri = { 4C 8D 45 ?? 48 8D 15 [4] 33 C9 FF 15 [4] 85 C0 0F 84 [4] C7 45 ?? 01 00 00 00 B8 0C 00 00 00 48 6B C0 00 48 8B 4D ?? 48 89 4C 05 ?? B8 0C 00 00 00 48 6B C0 00 C7 44 05 ?? 02 00 00 00 FF 15 [4] 4C 8D 45 ?? BA 20 00 00 00 48 8B C8 FF 15 [4] 85 C0 74 ?? 48 C7 44 24 28 00 00 00 00 48 C7 44 24 20 00 00 00 00 45 33 C9 4C 8D 45 ?? 33 D2 48 8B 4D ?? FF 15 }

	condition:
		(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of them
}

Cadenas (4 patrones)

IdentificadorTipoValorModificadores
$api1texto"PssCaptureSnapshot"fullword
$api2texto"MiniDumpWriteDump"fullword
$dumphex{ C7 [2-5] FD 03 00 AC 4C 8D 4D ?? 41 B8 1F 00 10 00 8B [2-5] 48 8B 4D ?? E8 [4] 89 [2-5] 83 [2-5] 00 74 ?? 48 8B 4D ?? FF 15 [4] 33 C0 E9 [4] 41 B8 10 00 00 00 …
$enable_dbg_prihex{ 4C 8D 45 ?? 48 8D 15 [4] 33 C9 FF 15 [4] 85 C0 0F 84 [4] C7 45 ?? 01 00 00 00 B8 0C 00 00 00 48 6B C0 00 48 8B 4D ?? 48 89 4C 05 ?? B8 0C 00 00 00 48 6B C0 00 …

Condición

(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of them

En palabras sencillas (Heurística)

  • El archivo debe empezar por «MZ»: un ejecutable de Windows (PE).
  • Deben coincidir todos los patrones de la regla.

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Referencias

Hashes de muestras

Hashes de las muestras que el autor lista en los metadatos de la regla (búscalos en tu plataforma de threat intelligence).

  • 4fd62068e591cbd6f413e1c2b8f75442

Licencia y atribución

Autor: FireEye

Repositorio de origen: Mandiant red team tool countermeasures @ 3561b71724

Licencia: BSD 2-Clause License (licencia del repositorio)

Aviso de copyright: Copyright (c) 2023, MANDIANT

Regla original

Obtenida a través de YARA Forge 20260927, que añade a los nombres el prefijo de la fuente y campos meta normalizados.

Id de la regla: 4b7640e8-5621-5cc3-8ac9-84347f23f5eb

Metadatos

rev1

Etiquetas:FILE

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