BlackCat | Bedrohungsstufe: critical | Typ: Ransomware

Kryptografische Kennungen

SHA2565a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d
MD59502d64e8f8c0f50127e2a7263596891
Dateitypexe
Größe3009.0 KB
Erstsichtung2022-02-22
Dateiname5a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d
Tagsblackcat, exe, Ransomware

Malware-Familie: BlackCat

BlackCat, Rust ransomware'dir.

TypRansomware
ProgrammierspracheRust
ZielplattformWindows/Linux
C2-Protokoll
ZweckRansomware
Jahr der Erstsichtung2021
Andere NamenALPHV

Bedrohungsindikatoren (IOC)

  • SHA256: 5a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d
  • MD5: 9502d64e8f8c0f50127e2a7263596891

Sie können alle Hash-Werte dieses Samples auf VirusTotal überprüfen.

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. Melden Sie den Vorfall den Behörden (Cybercrime-Einheit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

Hinweise für YARA-Regeln

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 5a604a8f0e72f3bf"
        threat_level = "critical"
        first_seen = "2022-02-22"
    condition:
        hash.sha256(0, filesize) == "5a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d"
}

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 5a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d # MD5 9502d64e8f8c0f50127e2a7263596891
TypWertBemerkung
sha256 5a604a8f0e72f3bf7901b7b67f881031a402ab8072269c00233a554df548f54d Sample:BlackCat
md5 9502d64e8f8c0f50127e2a7263596891 Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi