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MALPEDIA_Win_Compfun_Auto

autogenerated rule brought to you by yara-signator

MalwareCompfunMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compila con YARA-X
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: Compfun.

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

win-compfun-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Compfun_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "41d8f613-746c-5500-b816-c3a4b550704d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.compfun"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.compfun_auto.yar#L1-L155"
		license_url = "N/A"
		logic_hash = "723a41bb6acfefce75ab3d4affb763bfe86d9c1aac2b18b87326286e6f0b38a2"
		score = 75
		quality = 75
		tags = "FILE"
		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"

	strings:
		$sequence_0 = { 56 e8???????? 83c40c c70648656170 }
		$sequence_1 = { 85c0 7433 68???????? e8???????? 59 50 57 }
		$sequence_2 = { e8???????? 83c40c c70661647661 c7460470693332 }
		$sequence_3 = { 57 ffd3 898688000000 85c0 }
		$sequence_4 = { c7460c73736573 c746105c576f77 c7461436343332 c746184e6f6465 c7461c5c434c53 }
		$sequence_5 = { e9???????? 57 8b7d0c 85ff 7507 33c0 e9???????? }
		$sequence_6 = { c7460c65786520 c70673706964 c7460465726167 c74608656e742e c6460f00 8bc6 }
		$sequence_7 = { e8???????? 83c40c c746106e666f20 c7064765744e }
		$sequence_8 = { 034c2460 488b442450 894820 488b4c2450 }
		$sequence_9 = { 034c242c 488b442470 894820 488d542440 }
		$sequence_10 = { 0344242c 8bc8 e8???????? 4889442448 }
		$sequence_11 = { 03c1 89442420 8b442420 83c001 }
		$sequence_12 = { 03c1 89442420 8b4c2438 488b442450 }
		$sequence_13 = { 03c1 4863d0 488b4c2430 488b442438 }
		$sequence_14 = { 03c1 89442420 8b542438 486bd218 }
		$sequence_15 = { 03c1 89442434 8b442430 39442434 }

	condition:
		7 of them and filesize < 402432
}

Cadenas (16 patrones)

IdentificadorTipoValorModificadores
$sequence_0hex{ 56 e8???????? 83c40c c70648656170 }
$sequence_1hex{ 85c0 7433 68???????? e8???????? 59 50 57 }
$sequence_2hex{ e8???????? 83c40c c70661647661 c7460470693332 }
$sequence_3hex{ 57 ffd3 898688000000 85c0 }
$sequence_4hex{ c7460c73736573 c746105c576f77 c7461436343332 c746184e6f6465 c7461c5c434c53 }
$sequence_5hex{ e9???????? 57 8b7d0c 85ff 7507 33c0 e9???????? }
$sequence_6hex{ c7460c65786520 c70673706964 c7460465726167 c74608656e742e c6460f00 8bc6 }
$sequence_7hex{ e8???????? 83c40c c746106e666f20 c7064765744e }
$sequence_8hex{ 034c2460 488b442450 894820 488b4c2450 }
$sequence_9hex{ 034c242c 488b442470 894820 488d542440 }
$sequence_10hex{ 0344242c 8bc8 e8???????? 4889442448 }
$sequence_11hex{ 03c1 89442420 8b442420 83c001 }
$sequence_12hex{ 03c1 89442420 8b4c2438 488b442450 }
$sequence_13hex{ 03c1 4863d0 488b4c2430 488b442438 }
$sequence_14hex{ 03c1 89442420 8b542438 486bd218 }
$sequence_15hex{ 03c1 89442434 8b442430 39442434 }

Condición

7 of them and filesize < 402432

En palabras sencillas (Heurística)

  • El archivo debe ocupar menos de 402432 (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.

Arrastra un archivo aquí o haz clic para elegirSe escanea en local con YARA-X. Archivos de hasta 200 MB.

Abrir en el editor

Referencias

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)

Regla original

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: 41d8f613-746c-5500-b816-c3a4b550704d

Metadatos

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Etiquetas:FILE