BlackCat | Tehdit Seviyesi: critical | Tür: Ransomware

Kriptografik Tanımlayıcılar

SHA256df8d000833243acc0004595b3a8d4b66fcd7b76d8685d5c2ff61ee2a40a0e92c
MD5a0cd8aa1cd7cc61d41977cceacd7d4f6
Dosya Türüexe
Boyut12900.5 KB
İlk Görülme2023-12-15
Dosya Adısch1.exe
Etiketlerblackcat, exe, HUN, 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: df8d000833243acc0004595b3a8d4b66fcd7b76d8685d5c2ff61ee2a40a0e92c
  • MD5: a0cd8aa1cd7cc61d41977cceacd7d4f6

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: df8d000833243acc"
        threat_level = "critical"
        first_seen = "2023-12-15"
    condition:
        hash.sha256(0, filesize) == "df8d000833243acc0004595b3a8d4b66fcd7b76d8685d5c2ff61ee2a40a0e92c"
}

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 df8d000833243acc0004595b3a8d4b66fcd7b76d8685d5c2ff61ee2a40a0e92c # MD5 a0cd8aa1cd7cc61d41977cceacd7d4f6
TypeValueNote
sha256 df8d000833243acc0004595b3a8d4b66fcd7b76d8685d5c2ff61ee2a40a0e92c BlackCat
md5 a0cd8aa1cd7cc61d41977cceacd7d4f6 BlackCat
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş