YARA · Malpedia signator rules
MALPEDIA_Win_Exaramel_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: Exaramel.
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_Exaramel_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "4bb5336f-6cf5-5598-9713-11e463e3be93"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.exaramel"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.exaramel_auto.yar#L1-L131"
= "N/A"
= "4a61478d220d51d8955dd61c5e527940bd70efb0e8e883ccfdf3ca9c3103ecf6"
= 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 = { 83c404 85c0 7411 8d85ecfbffff 50 e8???????? 83c404 }
$sequence_1 = { 6685c0 0f8493000000 0fb7c0 83f876 0f8787000000 0fb680b04b4000 ff2485744b4000 }
$sequence_2 = { b857000780 5b 8be5 5d c3 8d4df0 c745e801000000 }
$sequence_3 = { 0f85ac180000 8d0d20a34100 ba1b000000 e9???????? a900000080 7517 ebd4 }
$sequence_4 = { 85c0 0f44ca 8bc1 8b4dfc 33cd 5e e8???????? }
$sequence_5 = { 8bf0 8b450c 85c0 7428 85db 7431 85ff }
$sequence_6 = { 83c410 c785b4f5ffff0c000000 8d85b4f5ffff c785b8f5ffff00000000 }
$sequence_7 = { 57 6a00 e8???????? 3d0e000780 74df 85c0 7950 }
$sequence_8 = { 6a00 8d85ecfdffff 50 ff770c e8???????? 83c404 50 }
$sequence_9 = { 837e1800 7416 6a04 8d4d08 c7450800330000 51 6a1f }
condition:
7 of them and filesize < 294912
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 83c404 85c0 7411 8d85ecfbffff 50 e8???????? 83c404 } | |
| $sequence_1 | hex | { 6685c0 0f8493000000 0fb7c0 83f876 0f8787000000 0fb680b04b4000 ff2485744b4000 } | |
| $sequence_2 | hex | { b857000780 5b 8be5 5d c3 8d4df0 c745e801000000 } | |
| $sequence_3 | hex | { 0f85ac180000 8d0d20a34100 ba1b000000 e9???????? a900000080 7517 ebd4 } | |
| $sequence_4 | hex | { 85c0 0f44ca 8bc1 8b4dfc 33cd 5e e8???????? } | |
| $sequence_5 | hex | { 8bf0 8b450c 85c0 7428 85db 7431 85ff } | |
| $sequence_6 | hex | { 83c410 c785b4f5ffff0c000000 8d85b4f5ffff c785b8f5ffff00000000 } | |
| $sequence_7 | hex | { 57 6a00 e8???????? 3d0e000780 74df 85c0 7950 } | |
| $sequence_8 | hex | { 6a00 8d85ecfdffff 50 ff770c e8???????? 83c404 50 } | |
| $sequence_9 | hex | { 837e1800 7416 6a04 8d4d08 c7450800330000 51 6a1f } |
Condición
7 of them and filesize < 294912En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 294912 (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: 4bb5336f-6cf5-5598-9713-11e463e3be93
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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