YARA · Malpedia signator rules
MALPEDIA_Win_Chrysalis_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: Chrysalis.
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_Chrysalis_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "2c7dc2a2-5283-53b6-a21c-10eed633f453"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.chrysalis"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.chrysalis_auto.yar#L1-L129"
= "N/A"
= "cbe5b3de7508fb1aafcc019e676ab361b14786c785157476dc210525386a2ae6"
= 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 = { e8???????? 8bbdb0fdffff 83bdccfdffff10 8d85b8fdffff 56 0f4385b8fdffff ffb5acfdffff }
$sequence_1 = { 0f1001 0f11040f f30f7e4110 660fd6440f10 }
$sequence_2 = { 83f81f 0f87aa000000 52 51 e8???????? 83c408 8b55a0 }
$sequence_3 = { 0f92c1 f7d9 0bc8 51 ffb59cf6ffff e8???????? 0f108578f6ffff }
$sequence_4 = { e9???????? 8b5710 8bc1 8b4dd8 8b0c81 3bca 7218 }
$sequence_5 = { 66898536fdffff 8d4a5e e8???????? ba15000000 66898538fdffff 8d4a60 e8???????? }
$sequence_6 = { 2bc1 83c0fc 83f81f 7734 e9???????? 52 }
$sequence_7 = { 6a00 68e9fd0000 ffd1 8b85a0f6ffff 8b0d???????? 898580f6ffff }
$sequence_8 = { ba20000000 6689854efdffff e8???????? 668b0d???????? ba21000000 66898550fdffff e8???????? }
$sequence_9 = { 6633f0 6689745c38 43 83fb05 0f8252ffffff 8b15???????? 33c0 }
condition:
7 of them and filesize < 2514944
}
Cadenas (10 patrones)
| Identificador | Tipo | Valor | Modificadores |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? 8bbdb0fdffff 83bdccfdffff10 8d85b8fdffff 56 0f4385b8fdffff ffb5acfdffff } | |
| $sequence_1 | hex | { 0f1001 0f11040f f30f7e4110 660fd6440f10 } | |
| $sequence_2 | hex | { 83f81f 0f87aa000000 52 51 e8???????? 83c408 8b55a0 } | |
| $sequence_3 | hex | { 0f92c1 f7d9 0bc8 51 ffb59cf6ffff e8???????? 0f108578f6ffff } | |
| $sequence_4 | hex | { e9???????? 8b5710 8bc1 8b4dd8 8b0c81 3bca 7218 } | |
| $sequence_5 | hex | { 66898536fdffff 8d4a5e e8???????? ba15000000 66898538fdffff 8d4a60 e8???????? } | |
| $sequence_6 | hex | { 2bc1 83c0fc 83f81f 7734 e9???????? 52 } | |
| $sequence_7 | hex | { 6a00 68e9fd0000 ffd1 8b85a0f6ffff 8b0d???????? 898580f6ffff } | |
| $sequence_8 | hex | { ba20000000 6689854efdffff e8???????? 668b0d???????? ba21000000 66898550fdffff e8???????? } | |
| $sequence_9 | hex | { 6633f0 6689745c38 43 83fb05 0f8252ffffff 8b15???????? 33c0 } |
Condición
7 of them and filesize < 2514944En palabras sencillas (Heurística)
- El archivo debe ocupar menos de 2514944 (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: 2c7dc2a2-5283-53b6-a21c-10eed633f453
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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