YARA · Malpedia signator rules
MALPEDIA_Win_Rokrat_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: Rokrat.
Define 16 patrones (0 de texto, 16 hex, 0 regex).
Resumen generado a partir de los metadatos y la condición de la regla.
Código de la regla
rule MALPEDIA_Win_Rokrat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "45d209f1-21c7-5333-8499-20e5f04e72a3"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.rokrat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rokrat_auto.yar#L1-L160"
= "N/A"
= "33fd0151c91e3dd62a334a078049239bcae0d7df9bb05b06ddc91a4d060e74c4"
= 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 = { 50 e8???????? 8d8ef4000000 8d4538 3bc8 }
$sequence_1 = { 50 e8???????? 8d8e0c010000 8d4550 3bc8 }
$sequence_2 = { 50 8bcf e8???????? 8d4538 3bd8 }
$sequence_3 = { 68???????? e8???????? 837e1408 7204 8b06 eb02 8bc6 }
$sequence_4 = { 668945c0 e8???????? c645fc03 8b45bc 83f808 }
$sequence_5 = { 6a00 50 8bcb e8???????? 8d4550 }
$sequence_6 = { 50 ff15???????? e8???????? 40 50 }
$sequence_7 = { 0fb74208 c1e910 51 50 0fb74212 }
$sequence_8 = { 50 e8???????? 8d4568 8d4e60 }
$sequence_9 = { ff15???????? 50 e8???????? 59 6a64 }
$sequence_10 = { 897dfc e8???????? 68???????? 8d4dd8 }
$sequence_11 = { 89442410 3beb 7420 68830a0000 }
$sequence_12 = { 89442410 3d00010000 7620 68bd0b0000 }
$sequence_13 = { 89442410 3beb 7435 f6870001000080 }
$sequence_14 = { 89442410 41 83f904 894c2414 }
$sequence_15 = { 89442410 3bea 742e f7870001000000010000 7519 68cc080000 68???????? }
condition:
7 of them and filesize < 2932736
}
Cadenas (16 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 50 e8???????? 8d8ef4000000 8d4538 3bc8 } | |
| $sequence_1 | hex | { 50 e8???????? 8d8e0c010000 8d4550 3bc8 } | |
| $sequence_2 | hex | { 50 8bcf e8???????? 8d4538 3bd8 } | |
| $sequence_3 | hex | { 68???????? e8???????? 837e1408 7204 8b06 eb02 8bc6 } | |
| $sequence_4 | hex | { 668945c0 e8???????? c645fc03 8b45bc 83f808 } | |
| $sequence_5 | hex | { 6a00 50 8bcb e8???????? 8d4550 } | |
| $sequence_6 | hex | { 50 ff15???????? e8???????? 40 50 } | |
| $sequence_7 | hex | { 0fb74208 c1e910 51 50 0fb74212 } | |
| $sequence_8 | hex | { 50 e8???????? 8d4568 8d4e60 } | |
| $sequence_9 | hex | { ff15???????? 50 e8???????? 59 6a64 } | |
| $sequence_10 | hex | { 897dfc e8???????? 68???????? 8d4dd8 } | |
| $sequence_11 | hex | { 89442410 3beb 7420 68830a0000 } | |
| $sequence_12 | hex | { 89442410 3d00010000 7620 68bd0b0000 } | |
| $sequence_13 | hex | { 89442410 3beb 7435 f6870001000080 } | |
| $sequence_14 | hex | { 89442410 41 83f904 894c2414 } | |
| $sequence_15 | hex | { 89442410 3bea 742e f7870001000000010000 7519 68cc080000 68???????? } |
Condición
7 of them and filesize < 2932736En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 2932736 (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: 45d209f1-21c7-5333-8499-20e5f04e72a3
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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