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YARA · BlackBerry Research & Intelligence (via Open-Source-YARA-rules)

BLACKBERRY_Eternitystealer

Detects Eternity Stealer

MalwareBlackBerry Research & Intelligence (via Open-Source-YARA-rules)Apache License 2.0Compila con YARA-X
Autor
BlackBerry Threat Research Team
Fecha
2022-05-22
Modificada
2022-07-07
Puntuación / Calidad
75 / 85

Qué detecta esta regla

Detects Eternity Stealer

Objetivos: PE de Windows.

Define 9 patrones (9 de texto, 0 hex, 0 regex). Módulos YARA usados: pe.

Resumen generado a partir de los metadatos y la condición de la regla.

Código de la regla

Incluye los imports necesarios para compilarla por sí sola.

eternitystealer.yarApache License 2.0
import "pe"

rule BLACKBERRY_Eternitystealer : FILE
{
	meta:
		description = "Detects Eternity Stealer"
		author = "BlackBerry Threat Research Team"
		id = "8bccc143-c250-5d52-85cb-b315dc6fb679"
		date = "2022-05-22"
		modified = "2022-07-07"
		reference = "https://blogs.blackberry.com/en/2022/06/threat-spotlight-eternity-project-maas-goes-on-and-on"
		source_url = "https://github.com/mikesxrs/Open-Source-YARA-rules/blob/ec0056f767db98bf6d5fd63877ad51fb54d350e9/Blackberry/EternityStealer.yar#L4-L32"
		license_url = "N/A"
		logic_hash = "466030b30c4436c3e3896ca3385ae829696e7f351bba81bc3c0efbc62b86645f"
		score = 75
		quality = 85
		tags = "FILE"
		license = "This Yara rule is provided under the Apache License 2.0 (https://www.apache.org/licenses/LICENSE-2.0) and open to any user or organization, as long as you use it under this license and ensure originator credit in any derivative to The BlackBerry Research & Intelligence Team"

	strings:
		$s1 = "Corrupting Growtopia.." wide
		$s2 = "growtopia1.com" wide
		$s3 = "Deleting previous file from startup and copying new one." wide
		$s4 = "Debug mode, dont share this stealer anywhere." wide
		$s5 = "Sending info to Eternity.." wide
		$s6 = "Taking and uploading screenshot.." wide
		$s7 = "dcd.exe" wide
		$s8 = "https://eterprx.net" wide
		$s9 = "https://eternitypr.net" wide

	condition:
		( uint16( 0 ) == 0x5a4d and pe.imphash ( ) == "f34d5f2d4577ed6d9ceec516c1f5a744" and all of ( $s* ) )
}

Cadenas (9 patrones)

IdentificadorTipoValorModificadores
$s1texto"Corrupting Growtopia.."wide
$s2texto"growtopia1.com"wide
$s3texto"Deleting previous file from startup and copying new one."wide
$s4texto"Debug mode, dont share this stealer anywhere."wide
$s5texto"Sending info to Eternity.."wide
$s6texto"Taking and uploading screenshot.."wide
$s7texto"dcd.exe"wide
$s8texto"https://eterprx.net"wide
$s9texto"https://eternitypr.net"wide

Condición

( uint16( 0 ) == 0x5a4d and pe.imphash ( ) == "f34d5f2d4577ed6d9ceec516c1f5a744" and all of ( $s* ) )

En palabras sencillas (Heurística)

  • El archivo debe empezar por «MZ»: un ejecutable de Windows (PE).
  • Deben coincidir todos los patrones de ( $s* ).
  • Usa el módulo pe.
  • Comprueba el hash de importaciones PE (imphash).

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Referencias

Licencia y atribución

Autor: BlackBerry Threat Research Team

Repositorio de origen: BlackBerry Research & Intelligence (via Open-Source-YARA-rules) @ ec0056f767

Licencia: Apache License 2.0 (indicada en los metadatos de la regla)

“This Yara rule is provided under the Apache License 2.0 (https://www.apache.org/licenses/LICENSE-2.0) and open to any user or organization, as long as you use it under this license and ensure originator credit in any derivative to The BlackBerry Research & Intelligence Team”

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: 8bccc143-c250-5d52-85cb-b315dc6fb679

Etiquetas:FILE