BlackCat | Tehdit Seviyesi: critical | Tür: Ransomware

Kriptografik Tanımlayıcılar

SHA2568dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07
MD5b5fc0fe105962cfa90b460151f1226b0
Dosya Türüexe
Boyut1666.5 KB
İlk Görülme2022-02-21
Dosya Adı8dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07
Etiketlerblackcat, Decryptor, exe

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: 8dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07
  • MD5: b5fc0fe105962cfa90b460151f1226b0

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: 8dc43793450f2c7f"
        threat_level = "critical"
        first_seen = "2022-02-21"
    condition:
        hash.sha256(0, filesize) == "8dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07"
}

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 8dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07 # MD5 b5fc0fe105962cfa90b460151f1226b0
TypeValueNote
sha256 8dc43793450f2c7f5953e0eb912356113346b6afd48f9400a26c35cdf0ffdd07
md5 b5fc0fe105962cfa90b460151f1226b0
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş