BlackCat | Bedrohungsstufe: critical | Typ: Ransomware

Kryptografische Kennungen

SHA2567d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9
MD5861738dd15eb7fb50568f0e39a69e107
Dateitypps1
Größe13.1 KB
Erstsichtung2022-06-21
Dateiname7d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9
Tagsblackcat, BlackCat Indicators

Malware-Familie: BlackCat

BlackCat, Rust ransomware'dir.

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

Bedrohungsindikatoren (IOC)

  • SHA256: 7d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9
  • MD5: 861738dd15eb7fb50568f0e39a69e107

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: 7d8671c91a02bfbf"
        threat_level = "critical"
        first_seen = "2022-06-21"
    condition:
        hash.sha256(0, filesize) == "7d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9"
}

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 7d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9 # MD5 861738dd15eb7fb50568f0e39a69e107
TypWertBemerkung
sha256 7d8671c91a02bfbff8b89a76501b9be017a66a8bba624ed4fe2c7f81b9380ac9 Sample:BlackCat
md5 861738dd15eb7fb50568f0e39a69e107 Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi