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MALPEDIA_Win_Ketrican_Auto

autogenerated rule brought to you by yara-signator

MalwareKetricanMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compila con YARA-X (con avisos)
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

win-ketrican-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ketrican_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9314d763-217b-5a0a-ac6b-e1deaae445fc"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ketrican"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ketrican_auto.yar#L1-L238"
		license_url = "N/A"
		logic_hash = "e663ac1ef65e774d3270c6a651d1d432b34f54becbddfefc56a51ae770faba5d"
		score = 75
		quality = 71
		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 = { 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)

IdentificadorTipoValorModificadores
$sequence_0hex{ 8965f0 33db 895dfc 33c0 }
$sequence_1hex{ e8???????? 8b06 5d c20400 55 8bec 8b4508 }
$sequence_2hex{ c3 55 8bec 8b4508 85c0 742c 83f80c }
$sequence_3hex{ e8???????? 83c010 8906 c3 56 8bf1 }
$sequence_4hex{ cc 8b06 83e810 8b08 }
$sequence_5hex{ 5e 8901 5b 5d c20800 680e000780 }
$sequence_6hex{ 5d c20800 680e000780 e8???????? cc 8b06 }
$sequence_7hex{ 5f 5e c3 55 8bec 837d0800 7d0a }
$sequence_8hex{ 33db 53 8d85f2f4ffff 50 e8???????? }
$sequence_9hex{ 48 743a 48 7426 48 }
$sequence_10hex{ eb02 b03d 884602 83fb02 }
$sequence_11hex{ 53 56 57 8965f0 33f6 8975fc 33c0 }
$sequence_12hex{ 8b7508 83650800 8d48fd 85c9 0f8e98000000 8d41ff 33d2 }
$sequence_13hex{ ff7508 53 53 ffd6 50 ff750c 57 }
$sequence_14hex{ 6a02 8d45ec 50 e8???????? 83c410 53 }
$sequence_15hex{ 8b542408 8d420c 8b8a54ffffff 33c8 e8???????? 8b8adc090000 }
$sequence_16hex{ e8???????? 8b8ae8060000 33c8 e8???????? b8???????? }
$sequence_17hex{ 8b8a78ffffff 33c8 e8???????? 8b8a8c2f0000 33c8 e8???????? }
$sequence_18hex{ e9???????? c705????????ac824100 c3 b9???????? }
$sequence_19hex{ e8???????? b8???????? e9???????? 8b4508 e9???????? 8b45ec 83e001 }
$sequence_20hex{ ff15???????? 68???????? c705????????98824100 a3???????? c605????????00 e8???????? 59 }
$sequence_21hex{ 8b8a24ffffff 33c8 e8???????? 8b8ae8080000 33c8 e8???????? b8???????? }
$sequence_22hex{ 8d45d0 e9???????? 8d4dd0 e9???????? 8d4de0 }

Condición

7 of them and filesize < 1449984

En 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.

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: 9314d763-217b-5a0a-ac6b-e1deaae445fc

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

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