BlackCat | Nivel de amenaza: critical | Tipo: Ransomware

Identificadores criptográficos

SHA256e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273
MD5da0bc578134b0871ce7700c9072d2797
Tipo de archivoexe
Tamaño45.5 KB
Primera detección2023-03-14
Nombre de archivologoff.exe
Etiquetasblackcat, exe, Ransomware

Familia de malware: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

TipoRansomware
Lenguaje de programaciónRust
Plataforma objetivoWindows/Linux
Protocolo C2
PropósitoÇapraz platform ransomware
Año de primera detección2021
Otros nombresALPHV

Indicadores de amenaza (IOC)

  • SHA256: e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273
  • MD5: da0bc578134b0871ce7700c9072d2797

Guía de limpieza del sistema

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. No pague el rescate: no hay garantía de recuperar los archivos
  3. Ponga en cuarentena las unidades afectadas
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Pruebe las herramientas de descifrado disponibles (proyecto NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Sugerencias de reglas YARA

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: e9cef52bf082c877"
        threat_level = "critical"
        first_seen = "2023-03-14"
    condition:
        hash.sha256(0, filesize) == "e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273"
}

BlackCat — Perfil del malware

BlackCat, Rust ile yazılan ransomware'dir.

Tipo de malware
Ransomware
Lenguaje de programación
Rust
Protocolo C2
Sistemas objetivo
Windows/Linux
También conocido como (AKA)
ALPHV

Detalles técnicos

BlackCat (ALPHV) is the first major ransomware written in Rust, enabling cross-platform attacks on Windows, Linux, and VMware ESXi. Emerged November 2021 as a RaaS operation. Triple extortion: file encryption + data exfiltration + DDoS threats. Uses AES-128 (CTR mode) or ChaCha20 for file encryption with RSA-2048 for key protection. Highly configurable JSON config: target extensions, excluded paths, credential stuffing. Uses intermittent encryption (partial file encryption) for speed. ALPHV 3.0 (Sphynx) introduced EXMATTER data exfiltration tool. FBI disrupted December 2023 with decryption keys released for 500 victims. Believed operated by former DarkSide/BlackMatter members.

Atribución / Actor de amenaza

ALPHV (linked to DarkSide/BlackMatter)

Capacidades y comportamiento

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

Lista IOC (2 indicadores)

IOC — BlackCat
# SHA256 e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 # MD5 da0bc578134b0871ce7700c9072d2797
TipoValorNota
sha256 e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 BlackCat
md5 da0bc578134b0871ce7700c9072d2797 BlackCat
Etiquetas
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş