YARA · Malpedia signator rules
MALPEDIA_Win_Ketrican_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 / 71
Qué detecta esta regla
autogenerated rule brought to you by yara-signator
Familia de malware asociada: Ketrican.
Define 23 patrones (0 de texto, 23 hex, 0 regex).
YARA-X dice: warning[text_as_hex]: hex pattern could be written as text literal
Resumen generado a partir de los metadatos y la condición de la regla.
Código de la regla
rule MALPEDIA_Win_Ketrican_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9314d763-217b-5a0a-ac6b-e1deaae445fc"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.ketrican"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ketrican_auto.yar#L1-L238"
= "N/A"
= "e663ac1ef65e774d3270c6a651d1d432b34f54becbddfefc56a51ae770faba5d"
= 75
= 71
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 8965f0 33db 895dfc 33c0 }
$sequence_1 = { e8???????? 8b06 5d c20400 55 8bec 8b4508 }
$sequence_2 = { c3 55 8bec 8b4508 85c0 742c 83f80c }
$sequence_3 = { e8???????? 83c010 8906 c3 56 8bf1 }
$sequence_4 = { cc 8b06 83e810 8b08 }
$sequence_5 = { 5e 8901 5b 5d c20800 680e000780 }
$sequence_6 = { 5d c20800 680e000780 e8???????? cc 8b06 }
$sequence_7 = { 5f 5e c3 55 8bec 837d0800 7d0a }
$sequence_8 = { 33db 53 8d85f2f4ffff 50 e8???????? }
$sequence_9 = { 48 743a 48 7426 48 }
$sequence_10 = { eb02 b03d 884602 83fb02 }
$sequence_11 = { 53 56 57 8965f0 33f6 8975fc 33c0 }
$sequence_12 = { 8b7508 83650800 8d48fd 85c9 0f8e98000000 8d41ff 33d2 }
$sequence_13 = { ff7508 53 53 ffd6 50 ff750c 57 }
$sequence_14 = { 6a02 8d45ec 50 e8???????? 83c410 53 }
$sequence_15 = { 8b542408 8d420c 8b8a54ffffff 33c8 e8???????? 8b8adc090000 }
$sequence_16 = { e8???????? 8b8ae8060000 33c8 e8???????? b8???????? }
$sequence_17 = { 8b8a78ffffff 33c8 e8???????? 8b8a8c2f0000 33c8 e8???????? }
$sequence_18 = { e9???????? c705????????ac824100 c3 b9???????? }
$sequence_19 = { e8???????? b8???????? e9???????? 8b4508 e9???????? 8b45ec 83e001 }
$sequence_20 = { ff15???????? 68???????? c705????????98824100 a3???????? c605????????00 e8???????? 59 }
$sequence_21 = { 8b8a24ffffff 33c8 e8???????? 8b8ae8080000 33c8 e8???????? b8???????? }
$sequence_22 = { 8d45d0 e9???????? 8d4dd0 e9???????? 8d4de0 }
condition:
7 of them and filesize < 1449984
}
Cadenas (23 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { 8965f0 33db 895dfc 33c0 } | |
| $sequence_1 | hex | { e8???????? 8b06 5d c20400 55 8bec 8b4508 } | |
| $sequence_2 | hex | { c3 55 8bec 8b4508 85c0 742c 83f80c } | |
| $sequence_3 | hex | { e8???????? 83c010 8906 c3 56 8bf1 } | |
| $sequence_4 | hex | { cc 8b06 83e810 8b08 } | |
| $sequence_5 | hex | { 5e 8901 5b 5d c20800 680e000780 } | |
| $sequence_6 | hex | { 5d c20800 680e000780 e8???????? cc 8b06 } | |
| $sequence_7 | hex | { 5f 5e c3 55 8bec 837d0800 7d0a } | |
| $sequence_8 | hex | { 33db 53 8d85f2f4ffff 50 e8???????? } | |
| $sequence_9 | hex | { 48 743a 48 7426 48 } | |
| $sequence_10 | hex | { eb02 b03d 884602 83fb02 } | |
| $sequence_11 | hex | { 53 56 57 8965f0 33f6 8975fc 33c0 } | |
| $sequence_12 | hex | { 8b7508 83650800 8d48fd 85c9 0f8e98000000 8d41ff 33d2 } | |
| $sequence_13 | hex | { ff7508 53 53 ffd6 50 ff750c 57 } | |
| $sequence_14 | hex | { 6a02 8d45ec 50 e8???????? 83c410 53 } | |
| $sequence_15 | hex | { 8b542408 8d420c 8b8a54ffffff 33c8 e8???????? 8b8adc090000 } | |
| $sequence_16 | hex | { e8???????? 8b8ae8060000 33c8 e8???????? b8???????? } | |
| $sequence_17 | hex | { 8b8a78ffffff 33c8 e8???????? 8b8a8c2f0000 33c8 e8???????? } | |
| $sequence_18 | hex | { e9???????? c705????????ac824100 c3 b9???????? } | |
| $sequence_19 | hex | { e8???????? b8???????? e9???????? 8b4508 e9???????? 8b45ec 83e001 } | |
| $sequence_20 | hex | { ff15???????? 68???????? c705????????98824100 a3???????? c605????????00 e8???????? 59 } | |
| $sequence_21 | hex | { 8b8a24ffffff 33c8 e8???????? 8b8ae8080000 33c8 e8???????? b8???????? } | |
| $sequence_22 | hex | { 8d45d0 e9???????? 8d4dd0 e9???????? 8d4de0 } |
Condición
7 of them and filesize < 1449984En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 1449984 (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: 9314d763-217b-5a0a-ac6b-e1deaae445fc
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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