YARA · Mandiant red team tool countermeasures
FIREEYE_RT_Trojan_Win64_Generic_22
No description has been set in the source file - FireEye-RT
- Autor
- FireEye
- Fecha
- 2020-11-26
- 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 7 patrones (4 de texto, 3 hex, 0 regex).
Resumen generado a partir de los metadatos y la condición de la regla.
Código de la regla
rule FIREEYE_RT_Trojan_Win64_Generic_22 : FILE
{
meta:
= "No description has been set in the source file - FireEye-RT"
= "FireEye"
= "e79661a8-5254-5e8e-b92b-edf1ddb072ff"
= "2020-11-26"
= "2020-11-26"
= "2020-12-09"
= "https://github.com/mandiant/red_team_tool_countermeasures/"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/EXCAVATOR/supplemental/yara/Trojan_Win64_Generic_22.yar#L4-L22"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
= "f7d9961463b5110a3d70ee2e97842ed3"
= "52fbe5c0ee7c05df5fcd62c26caaa5498e32352da9c5940e522aa31d6c808028"
= 75
= 75
= "FILE"
= 2
strings:
$api1 = "VirtualAllocEx" fullword
$api2 = "UpdateProcThreadAttribute" fullword
$api3 = "DuplicateTokenEx" fullword
$api4 = "CreateProcessAsUserA" fullword
$inject = { C7 44 24 20 40 00 00 00 33 D2 41 B9 00 30 00 00 41 B8 [4] 48 8B CB FF 15 [4] 48 8B F0 48 85 C0 74 ?? 4C 89 74 24 20 41 B9 [4] 4C 8D 05 [4] 48 8B D6 48 8B CB FF 15 [4] 85 C0 75 [5-10] 4C 8D 0C 3E 48 8D 44 24 ?? 48 89 44 24 30 44 89 74 24 28 4C 89 74 24 20 33 D2 41 B8 [4] 48 8B CB FF 15 }
$process = { 89 74 24 30 ?? 8D 4C 24 [2] 89 74 24 28 33 D2 41 B8 00 00 02 00 48 C7 44 24 20 08 00 00 00 48 8B CF FF 15 [4] 85 C0 0F 84 [4] 48 8B [2-3] 48 8D 45 ?? 48 89 44 24 50 4C 8D 05 [4] 48 8D 45 ?? 48 89 7D 08 48 89 44 24 48 45 33 C9 ?? 89 74 24 40 33 D2 ?? 89 74 24 38 C7 44 24 30 04 00 08 00 [0-1] 89 74 24 28 ?? 89 74 24 20 FF 15 }
$token = { FF 15 [4] 4C 8D 44 24 ?? BA 0A 00 00 00 48 8B C8 FF 15 [4] 85 C0 0F 84 [4] 48 8B 4C 24 ?? 48 8D [2-3] 41 B9 02 00 00 00 48 89 44 24 28 45 33 C0 C7 44 24 20 02 00 00 00 41 8D 51 09 FF 15 [4] 85 C0 0F 84 [4] 45 33 C0 4C 8D 4C 24 ?? 33 C9 41 8D 50 01 FF 15 }
condition:
(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of them
}
Cadenas (7 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $api1 | texto | "VirtualAllocEx" | fullword |
| $api2 | texto | "UpdateProcThreadAttribute" | fullword |
| $api3 | texto | "DuplicateTokenEx" | fullword |
| $api4 | texto | "CreateProcessAsUserA" | fullword |
| $inject | hex | { C7 44 24 20 40 00 00 00 33 D2 41 B9 00 30 00 00 41 B8 [4] 48 8B CB FF 15 [4] 48 8B F0 48 85 C0 74 ?? 4C 89 74 24 20 41 B9 [4] 4C 8D 05 [4] 48 8B D6 48 8B CB F … | |
| $process | hex | { 89 74 24 30 ?? 8D 4C 24 [2] 89 74 24 28 33 D2 41 B8 00 00 02 00 48 C7 44 24 20 08 00 00 00 48 8B CF FF 15 [4] 85 C0 0F 84 [4] 48 8B [2-3] 48 8D 45 ?? 48 89 44 … | |
| $token | hex | { FF 15 [4] 4C 8D 44 24 ?? BA 0A 00 00 00 48 8B C8 FF 15 [4] 85 C0 0F 84 [4] 48 8B 4C 24 ?? 48 8D [2-3] 41 B9 02 00 00 00 48 89 44 24 28 45 33 C0 C7 44 24 20 02 … |
Condición
(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of themEn palabras sencillas (Heurística)
- El archivo debe empezar por «MZ»: un ejecutable de Windows (PE).
- Deben coincidir todos los patrones de la regla.
Prueba esta regla en tu navegador
Arrastra un archivo para escanearlo con esta regla usando YARA-X compilado a WebAssembly. No se sube nada.
Hashes de muestras
Hashes de las muestras que el autor lista en los metadatos de la regla (búscalos en tu plataforma de threat intelligence).
- f7d9961463b5110a3d70ee2e97842ed3
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
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: e79661a8-5254-5e8e-b92b-edf1ddb072ff
Metadatos
| rev | 2 |
|---|
Etiquetas:FILE
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