BlackCat | Niveau de menace: critical | Type: Ransomware

Identifiants cryptographiques

SHA256a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12
MD5582f6b1406c1cd9bccef9a17013422f8
Type de fichierexe
Taille2926.0 KB
Première observation2022-03-13
Nom du fichier240c020669a832ed2bf5b478eb54d156c9bd9c79
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: a15f278540238f0308608e76a76c01c60e04f5e5bbe9ffce5455f2e965574a12
  • MD5: 582f6b1406c1cd9bccef9a17013422f8

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

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