BlackCat | Bedrohungsstufe: critical | Typ: Ransomware

Kryptografische Kennungen

SHA256a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12
MD5582f6b1406c1cd9bccef9a17013422f8
Dateitypexe
Größe2926.0 KB
Erstsichtung2022-03-13
Dateiname240c020669a832ed2bf5b478eb54d156c9bd9c79
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: a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12
  • MD5: 582f6b1406c1cd9bccef9a17013422f8

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: a15f278540238f03"
        threat_level = "critical"
        first_seen = "2022-03-13"
    condition:
        hash.sha256(0, filesize) == "a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12"
}

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 a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12 # MD5 582f6b1406c1cd9bccef9a17013422f8
TypWertBemerkung
sha256 a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12
md5 582f6b1406c1cd9bccef9a17013422f8
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş