YARA · Malpedia signator rules
MALPEDIA_Win_Chewbacca_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: Chewbacca.
Define 10 patrones (0 de texto, 10 hex, 0 regex).
Resumen generado a partir de los metadatos y la condición de la regla.
Código de la regla
rule MALPEDIA_Win_Chewbacca_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "540af0df-c476-50dc-baf1-115807795d55"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.chewbacca"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.chewbacca_auto.yar#L1-L134"
= "N/A"
= "742822157bec8dd9ee72aed765221c6cf83fa642a836fe167c2ac418ecc29121"
= 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 = { e8???????? eb55 8b442478 89442414 895c2410 c744240c9c976600 c7442408???????? }
$sequence_1 = { ff33 74fd 0389cfc1ef10 81e7ff000000 3374fd02 89d7 c1ef18 }
$sequence_2 = { e8???????? c744241426a36700 c744241048cf6700 c744240c20060000 89442408 c7442404???????? a1???????? }
$sequence_3 = { a3???????? 8b442424 89442408 8b442420 89442404 a1???????? 890424 }
$sequence_4 = { c7042424040000 e8???????? 89c2 85c0 0f84a0000000 89c7 be24040000 }
$sequence_5 = { e8???????? c7042401000000 e8???????? e8???????? 89c3 e8???????? 895c2410 }
$sequence_6 = { eb0c be00000000 eb05 be00000000 89f0 83c410 5b }
$sequence_7 = { f2ae f7d1 8b442440 8d4408ff 89442440 e9???????? 89e8 }
$sequence_8 = { 8945fc 89d3 89ce 8a4508 84c0 7409 8b45fc }
$sequence_9 = { 8b542454 8b442450 e8???????? 85c0 740b 83c43c 5b }
condition:
7 of them and filesize < 9764864
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? eb55 8b442478 89442414 895c2410 c744240c9c976600 c7442408???????? } | |
| $sequence_1 | hex | { ff33 74fd 0389cfc1ef10 81e7ff000000 3374fd02 89d7 c1ef18 } | |
| $sequence_2 | hex | { e8???????? c744241426a36700 c744241048cf6700 c744240c20060000 89442408 c7442404???????? a1???????? } | |
| $sequence_3 | hex | { a3???????? 8b442424 89442408 8b442420 89442404 a1???????? 890424 } | |
| $sequence_4 | hex | { c7042424040000 e8???????? 89c2 85c0 0f84a0000000 89c7 be24040000 } | |
| $sequence_5 | hex | { e8???????? c7042401000000 e8???????? e8???????? 89c3 e8???????? 895c2410 } | |
| $sequence_6 | hex | { eb0c be00000000 eb05 be00000000 89f0 83c410 5b } | |
| $sequence_7 | hex | { f2ae f7d1 8b442440 8d4408ff 89442440 e9???????? 89e8 } | |
| $sequence_8 | hex | { 8945fc 89d3 89ce 8a4508 84c0 7409 8b45fc } | |
| $sequence_9 | hex | { 8b542454 8b442450 e8???????? 85c0 740b 83c43c 5b } |
Condición
7 of them and filesize < 9764864En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 9764864 (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: 540af0df-c476-50dc-baf1-115807795d55
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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