BlackCat | Tehdit Seviyesi: critical | Tür: Ransomware

Kriptografik Tanımlayıcılar

SHA256e5627c7b3e95c75c95e4532b3204209ed8c6786a159804702e0a3d03cdce7bed
MD5041985a49968a19534d2b49dd8f4397e
Dosya Türüexe
Boyut14853.0 KB
İlk Görülme2022-12-20
Dosya AdıXXX_Alpha.exe
Etiketlerblackcat, exe, malware

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: e5627c7b3e95c75c95e4532b3204209ed8c6786a159804702e0a3d03cdce7bed
  • MD5: 041985a49968a19534d2b49dd8f4397e

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: e5627c7b3e95c75c"
        threat_level = "critical"
        first_seen = "2022-12-20"
    condition:
        hash.sha256(0, filesize) == "e5627c7b3e95c75c95e4532b3204209ed8c6786a159804702e0a3d03cdce7bed"
}

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 e5627c7b3e95c75c95e4532b3204209ed8c6786a159804702e0a3d03cdce7bed # MD5 041985a49968a19534d2b49dd8f4397e
TypeValueNote
sha256 e5627c7b3e95c75c95e4532b3204209ed8c6786a159804702e0a3d03cdce7bed
md5 041985a49968a19534d2b49dd8f4397e
Tags
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş