YARA · Malpedia signator rules
MALPEDIA_Win_Nefilim_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: Nefilim.
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_Nefilim_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "33eab17d-97c0-5d73-a9f1-b767c75e5881"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.nefilim"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.nefilim_auto.yar#L1-L118"
= "N/A"
= "3a27af8833785290d94c5f72bdf3db44afcefd8ef480b73988f50858a895ec4a"
= 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 = { 8810 40 49 75f7 8b4dfc 5f 33cd }
$sequence_1 = { 7d0d 8a4c181c 8888b8e54000 40 ebe9 }
$sequence_2 = { be???????? 56 bb???????? 53 ffd7 85c0 }
$sequence_3 = { ffd6 85c0 0f8436010000 8b442414 }
$sequence_4 = { 50 ffd7 8d4df4 83ec1c }
$sequence_5 = { f7db 1adb 6a01 33ff 8d75c4 e8???????? }
$sequence_6 = { 75f7 8b4dfc 5f 33cd }
$sequence_7 = { 0f862d020000 be48e80100 eb04 8b4c2418 2b4c2428 }
$sequence_8 = { f3a5 ff2495d0324000 8bc7 ba03000000 83e904 720c }
$sequence_9 = { ff74242c 8944242c e8???????? ff74242c e8???????? be00010000 56 }
condition:
7 of them and filesize < 142336
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 8810 40 49 75f7 8b4dfc 5f 33cd } | |
| $sequence_1 | hex | { 7d0d 8a4c181c 8888b8e54000 40 ebe9 } | |
| $sequence_2 | hex | { be???????? 56 bb???????? 53 ffd7 85c0 } | |
| $sequence_3 | hex | { ffd6 85c0 0f8436010000 8b442414 } | |
| $sequence_4 | hex | { 50 ffd7 8d4df4 83ec1c } | |
| $sequence_5 | hex | { f7db 1adb 6a01 33ff 8d75c4 e8???????? } | |
| $sequence_6 | hex | { 75f7 8b4dfc 5f 33cd } | |
| $sequence_7 | hex | { 0f862d020000 be48e80100 eb04 8b4c2418 2b4c2428 } | |
| $sequence_8 | hex | { f3a5 ff2495d0324000 8bc7 ba03000000 83e904 720c } | |
| $sequence_9 | hex | { ff74242c 8944242c e8???????? ff74242c e8???????? be00010000 56 } |
Condición
7 of them and filesize < 142336En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 142336 (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: 33eab17d-97c0-5d73-a9f1-b767c75e5881
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
Reglas relacionadas
- MalwareTrellix Advanced Research Center· Marc Rivero | McAfee ATR Team· 2020-03-17
- MalwareTrellix Advanced Research Center· Marc Rivero | McAfee ATR Team· 2020-07-13
- MalwareTrellix Advanced Research Center· Marc Rivero | McAfee ATR Team· 2020-04-02
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04