BlackCat | Bedrohungsstufe: critical | Typ: Ransomware

Kryptografische Kennungen

SHA256c50bca08a8e80850ec18d258ff937b7b72a500d9027c730c86b05aa73c938b5d
MD5994de6a3f96bd710d620e1396e1bec92
Dateitypexe
Größe2926.0 KB
Erstsichtung2022-03-17
Dateiname53489b26fcceff4ef3240b2efcbfb38a78d24c4d.rl
Tagsblackcat, exe, Ransomware

Malware-Familie: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

TypRansomware
ProgrammierspracheRust
ZielplattformWindows/Linux
C2-Protokoll
ZweckÇapraz platform ransomware
Jahr der Erstsichtung2021
Andere NamenALPHV

Bedrohungsindikatoren (IOC)

  • SHA256: c50bca08a8e80850ec18d258ff937b7b72a500d9027c730c86b05aa73c938b5d
  • MD5: 994de6a3f96bd710d620e1396e1bec92

Anleitung zur Systembereinigung

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Zahlen Sie kein Lösegeld — es gibt keine Garantie für die Wiederherstellung
  3. Stellen Sie die betroffenen Laufwerke unter Quarantäne
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Probieren Sie verfügbare Entschlüsselungstools (Projekt NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Hinweise für YARA-Regeln

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: c50bca08a8e80850"
        threat_level = "critical"
        first_seen = "2022-03-17"
    condition:
        hash.sha256(0, filesize) == "c50bca08a8e80850ec18d258ff937b7b72a500d9027c730c86b05aa73c938b5d"
}

BlackCat — Malware-Profil

BlackCat, Rust ile yazılan ransomware'dir.

Malware-Typ
Ransomware
Programmiersprache
Rust
C2-Protokoll
Zielsysteme
Windows/Linux
Auch bekannt als (AKA)
ALPHV

Technische Details

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.

Attribution / Bedrohungsakteur

ALPHV (linked to DarkSide/BlackMatter)

Fähigkeiten & Verhalten

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

IOC-Liste (2 Indikatoren)

IOC — BlackCat
# SHA256 c50bca08a8e80850ec18d258ff937b7b72a500d9027c730c86b05aa73c938b5d # MD5 994de6a3f96bd710d620e1396e1bec92
TypWertBemerkung
sha256 c50bca08a8e80850ec18d258ff937b7b72a500d9027c730c86b05aa73c938b5d
md5 994de6a3f96bd710d620e1396e1bec92
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş