BlackCat | Niveau de menace: critical | Type: Ransomware

Identifiants cryptographiques

SHA2563850817e83a1cf4195920110bb2995a0386fdaeacbf81e13f52bdb3d124911f5
MD5ee235433fd55730d76f698e74bfc880d
Type de fichierexe
Taille2925.5 KB
Première observation2022-03-11
Nom du fichier53d0e98ddf26af5b88c05618584213684d1bff44
Étiquettesblackcat, exe, Ransomware

Famille de malware: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

TypeRansomware
Langage de programmationRust
Plateforme cibleWindows/Linux
Protocole C2
ObjectifÇapraz platform ransomware
Année de première observation2021
Autres nomsALPHV

Indicateurs de menace (IOC)

  • SHA256: 3850817e83a1cf4195920110bb2995a0386fdaeacbf81e13f52bdb3d124911f5
  • MD5: ee235433fd55730d76f698e74bfc880d

Guide de nettoyage du système

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Ne payez pas la rançon — rien ne garantit la récupération des fichiers
  3. Mettez en quarantaine les disques concernés
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Essayez les outils de déchiffrement disponibles (projet NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Indices de règles YARA

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 3850817e83a1cf41"
        threat_level = "critical"
        first_seen = "2022-03-11"
    condition:
        hash.sha256(0, filesize) == "3850817e83a1cf4195920110bb2995a0386fdaeacbf81e13f52bdb3d124911f5"
}

BlackCat — Profil du malware

BlackCat, Rust ile yazılan ransomware'dir.

Type de malware
Ransomware
Langage de programmation
Rust
Protocole C2
Systèmes ciblés
Windows/Linux
Aussi connu sous (AKA)
ALPHV

Détails techniques

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 / Acteur de la menace

ALPHV (linked to DarkSide/BlackMatter)

Capacités et comportement

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

Liste IOC (2 indicateurs)

IOC — BlackCat
# SHA256 3850817e83a1cf4195920110bb2995a0386fdaeacbf81e13f52bdb3d124911f5 # MD5 ee235433fd55730d76f698e74bfc880d
TypeValeurNote
sha256 3850817e83a1cf4195920110bb2995a0386fdaeacbf81e13f52bdb3d124911f5
md5 ee235433fd55730d76f698e74bfc880d
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş