BlackCat | Tehdit Seviyesi: critical | Tür: Ransomware

Kriptografik Tanımlayıcılar

SHA25662ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda
MD5b67ffe5e49ada7628ae9c32eaa3b4ce3
Dosya Türüexe
Boyut10788.0 KB
İlk Görülme2023-03-19
Dosya Adı62ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda.bin
Etiketlerblackcat, exe, Ransomware

Malware Ailesi: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

TürRansomware
Programlama DiliRust
Hedef PlatformWindows/Linux
C2 Protokolü
AmaçÇapraz platform ransomware
İlk Görülen Yıl2021
Diğer İsimlerALPHV

Tehdit Göstergeleri (IOC)

  • SHA256: 62ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda
  • MD5: b67ffe5e49ada7628ae9c32eaa3b4ce3

Sistem Temizleme Rehberi

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Fidye ödemeyin — dosyaları geri alma garantisi yoktur
  3. Etkilenen sürücüleri karantinaya alın
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Mevcut decryptor tool'ları deneyin (NoMoreRansom projesi)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

YARA Kuralı İpuçları

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 62ae5ad22213d2ad"
        threat_level = "critical"
        first_seen = "2023-03-19"
    condition:
        hash.sha256(0, filesize) == "62ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda"
}

BlackCat — Malware Profile

BlackCat, Rust ile yazılan ransomware'dir.

Malware Type
Ransomware
Programming Language
Rust
C2 Protocol
Target Systems
Windows/Linux
Also Known As (AKA)
ALPHV

Technical 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 / Threat Actor

ALPHV (linked to DarkSide/BlackMatter)

Capabilities & Behavior

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 List (2 indicators)

IOC — BlackCat
# SHA256 62ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda # MD5 b67ffe5e49ada7628ae9c32eaa3b4ce3
TypeValueNote
sha256 62ae5ad22213d2adaf0e7cf1ce23ff47b996f60065244b63f361a22daed2bdda BlackCat
md5 b67ffe5e49ada7628ae9c32eaa3b4ce3 BlackCat
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş