YARA · Malpedia signator rules
MALPEDIA_Win_Acr_Stealer_Auto
autogenerated rule brought to you by yara-signator
- Autor
- Felix Bilstein - yara-signator at cocacoding dot com
- Fecha
- 2026-05-04
- Modificada
- 2026-05-18
- Puntuación / Calidad
- 75 / 75
Qué detecta esta regla
autogenerated rule brought to you by yara-signator
Familia de malware asociada: Acr Stealer.
Define 16 patrones (0 de texto, 16 hex, 0 regex).
Resumen generado a partir de los metadatos y la condición de la regla.
Código de la regla
rule MALPEDIA_Win_Acr_Stealer_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1003329d-aff7-559b-894c-14706d73c37d"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.acr_stealer"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.acr_stealer_auto.yar#L1-L172"
= "N/A"
= "d919e082eb04a99d443b28730bcbf6127cc892ba025c69b26f242c19d1e8c686"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 891481 8b45f8 83c001 8945f8 8b4d08 51 e8???????? }
$sequence_1 = { 8b55fc 0fb602 8b4df8 0fb611 2bc2 eb16 }
$sequence_2 = { 52 8d4508 50 e8???????? 8945d8 8955dc 6a00 }
$sequence_3 = { 895510 eb94 33c0 8be5 5d c3 55 }
$sequence_4 = { 83c001 8945e4 8b4de4 3b4df8 7314 }
$sequence_5 = { 8d45e0 50 6803200100 8b4df8 e8???????? 0fb6c8 }
$sequence_6 = { 035508 81fa806cfa0b 7604 33c0 }
$sequence_7 = { 8b048a 50 e8???????? 83c404 ebc9 8b4dfc }
$sequence_8 = { 33c0 8bd1 0fa4f11f d1ea }
$sequence_9 = { 0f57c0 6a01 0f1101 68???????? c7411000000000 c7411400000000 e8???????? }
$sequence_10 = { 68???????? 68???????? 6a03 83ec10 }
$sequence_11 = { 5d c3 85f6 747e }
$sequence_12 = { 33c5 8945fc 56 8bf1 8b06 0fb600 }
$sequence_13 = { 41 03d8 8b849574ffffff d3e0 }
$sequence_14 = { 57 8b7e24 0bc7 741e 8bca 8bc7 83c1ff }
$sequence_15 = { 3c5c 0fb6c8 b82f000000 0f44c8 47 880a }
condition:
7 of them and filesize < 2160640
}
Cadenas (16 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 891481 8b45f8 83c001 8945f8 8b4d08 51 e8???????? } | |
| $sequence_1 | hex | { 8b55fc 0fb602 8b4df8 0fb611 2bc2 eb16 } | |
| $sequence_2 | hex | { 52 8d4508 50 e8???????? 8945d8 8955dc 6a00 } | |
| $sequence_3 | hex | { 895510 eb94 33c0 8be5 5d c3 55 } | |
| $sequence_4 | hex | { 83c001 8945e4 8b4de4 3b4df8 7314 } | |
| $sequence_5 | hex | { 8d45e0 50 6803200100 8b4df8 e8???????? 0fb6c8 } | |
| $sequence_6 | hex | { 035508 81fa806cfa0b 7604 33c0 } | |
| $sequence_7 | hex | { 8b048a 50 e8???????? 83c404 ebc9 8b4dfc } | |
| $sequence_8 | hex | { 33c0 8bd1 0fa4f11f d1ea } | |
| $sequence_9 | hex | { 0f57c0 6a01 0f1101 68???????? c7411000000000 c7411400000000 e8???????? } | |
| $sequence_10 | hex | { 68???????? 68???????? 6a03 83ec10 } | |
| $sequence_11 | hex | { 5d c3 85f6 747e } | |
| $sequence_12 | hex | { 33c5 8945fc 56 8bf1 8b06 0fb600 } | |
| $sequence_13 | hex | { 41 03d8 8b849574ffffff d3e0 } | |
| $sequence_14 | hex | { 57 8b7e24 0bc7 741e 8bca 8bc7 83c1ff } | |
| $sequence_15 | hex | { 3c5c 0fb6c8 b82f000000 0f44c8 47 880a } |
Condición
7 of them and filesize < 2160640En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 2160640 (un límite barato que descarta archivos grandes).
- Deben coincidir al menos 7 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.
Licencia y atribución
Autor: Felix Bilstein - yara-signator at cocacoding dot com
Repositorio de origen: Malpedia signator rules @ c901f97b7d
Licencia: Creative Commons Attribution-ShareAlike 4.0 (licencia del repositorio)
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: 1003329d-aff7-559b-894c-14706d73c37d
Metadatos
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20260422 |
| malpedia_hash | a182e35da64e6d71cb55f125c4d4225196523f14 |
| malpedia_version | 20260504 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Etiquetas:FILE
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