YARA · Malpedia signator rules
MALPEDIA_Win_Downdelph_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: Downdelph.
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_Downdelph_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "61a35037-d1c6-592f-a410-db3ec76010bc"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.downdelph"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.downdelph_auto.yar#L1-L120"
= "N/A"
= "a7c550aa5f23edbdf645cd157e6bc2a7a55cfb141cb7d6bdaab9602651fd4832"
= 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 = { ba02000000 e8???????? 8d45f0 8b15???????? e8???????? 8d45f4 ba03000000 }
$sequence_1 = { 49 ba01000000 8b45f8 e8???????? 8b55c8 }
$sequence_2 = { 7405 83ef04 8b3f 56 8d45d8 }
$sequence_3 = { 6a00 6a00 e8???????? a3???????? 833d????????00 7402 b301 }
$sequence_4 = { 0345e8 33c9 e8???????? 837df401 7e7f 83450804 ff4df4 }
$sequence_5 = { 8b55cc 8d45f8 e8???????? 837df800 750d }
$sequence_6 = { 837de800 740a 836de808 8b45e8 8b7804 8b45f8 }
$sequence_7 = { 8945f0 33c0 43 81e3ff000080 7908 4b }
$sequence_8 = { 4e 75d6 8b45dc 89470c }
$sequence_9 = { 8d45f8 33c9 ba06000000 e8???????? }
condition:
7 of them and filesize < 172032
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { ba02000000 e8???????? 8d45f0 8b15???????? e8???????? 8d45f4 ba03000000 } | |
| $sequence_1 | hex | { 49 ba01000000 8b45f8 e8???????? 8b55c8 } | |
| $sequence_2 | hex | { 7405 83ef04 8b3f 56 8d45d8 } | |
| $sequence_3 | hex | { 6a00 6a00 e8???????? a3???????? 833d????????00 7402 b301 } | |
| $sequence_4 | hex | { 0345e8 33c9 e8???????? 837df401 7e7f 83450804 ff4df4 } | |
| $sequence_5 | hex | { 8b55cc 8d45f8 e8???????? 837df800 750d } | |
| $sequence_6 | hex | { 837de800 740a 836de808 8b45e8 8b7804 8b45f8 } | |
| $sequence_7 | hex | { 8945f0 33c0 43 81e3ff000080 7908 4b } | |
| $sequence_8 | hex | { 4e 75d6 8b45dc 89470c } | |
| $sequence_9 | hex | { 8d45f8 33c9 ba06000000 e8???????? } |
Condición
7 of them and filesize < 172032En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 172032 (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: 61a35037-d1c6-592f-a410-db3ec76010bc
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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