YARA · Malpedia signator rules
MALPEDIA_Win_Babyshark_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: Babyshark.
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_Babyshark_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "bba62dea-b8fb-5177-af59-ee7484609223"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.babyshark"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.babyshark_auto.yar#L1-L124"
= "N/A"
= "170a55c792dd841a430b5276e4b7ea8cd0c0e2d28c406b503a22728951bd6c1d"
= 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 = { 83c40c 8d4c2404 6a00 51 ffd6 6a00 }
$sequence_1 = { 8bc8 83e01f c1f905 8b0c8d607e4000 8a44c104 83e040 }
$sequence_2 = { 8b0c8d607e4000 8a44c104 83e040 c3 a1???????? }
$sequence_3 = { bf???????? f3ab 8d3452 895dfc c1e604 aa 8d9ec8674000 }
$sequence_4 = { 80e920 ebe0 80a0206c400000 40 3bc6 72be 5e }
$sequence_5 = { 8db6bc674000 bf???????? a5 a5 59 a3???????? }
$sequence_6 = { 8a8094504000 83e00f eb02 33c0 0fbe84c6b4504000 }
$sequence_7 = { c1f804 83f807 8945d0 0f879a060000 ff2485271a4000 834df0ff }
$sequence_8 = { 5e 8d0c8dc8614000 3bc1 7304 3910 7402 }
$sequence_9 = { ff15???????? 8bf0 68???????? 8d442408 68???????? 50 }
condition:
7 of them and filesize < 65272
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 83c40c 8d4c2404 6a00 51 ffd6 6a00 } | |
| $sequence_1 | hex | { 8bc8 83e01f c1f905 8b0c8d607e4000 8a44c104 83e040 } | |
| $sequence_2 | hex | { 8b0c8d607e4000 8a44c104 83e040 c3 a1???????? } | |
| $sequence_3 | hex | { bf???????? f3ab 8d3452 895dfc c1e604 aa 8d9ec8674000 } | |
| $sequence_4 | hex | { 80e920 ebe0 80a0206c400000 40 3bc6 72be 5e } | |
| $sequence_5 | hex | { 8db6bc674000 bf???????? a5 a5 59 a3???????? } | |
| $sequence_6 | hex | { 8a8094504000 83e00f eb02 33c0 0fbe84c6b4504000 } | |
| $sequence_7 | hex | { c1f804 83f807 8945d0 0f879a060000 ff2485271a4000 834df0ff } | |
| $sequence_8 | hex | { 5e 8d0c8dc8614000 3bc1 7304 3910 7402 } | |
| $sequence_9 | hex | { ff15???????? 8bf0 68???????? 8d442408 68???????? 50 } |
Condición
7 of them and filesize < 65272En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 65272 (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: bba62dea-b8fb-5177-af59-ee7484609223
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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