Kriptografik Tanımlayıcılar
| SHA256 | 4729c95c7b1da0c7176d100bb5fccea3b1c467f295e37677fab3b50d41ff1ff0 |
|---|---|
| MD5 | 9adec3dda8427bf36fb83f6c384da2c5 |
| Dosya Türü | exe |
| Boyut | 89.0 KB |
| İlk Görülme | 2023-03-14 |
| Dosya Adı | logoff.exe |
| Etiketler | blackcat, exe, Ransomware |
Malware Ailesi: BlackCat
BlackCat, Rust ile yazılan ransomware'dir.
| Tür | Ransomware |
|---|---|
| Programlama Dili | Rust |
| Hedef Platform | Windows/Linux |
| C2 Protokolü | — |
| Amaç | Çapraz platform ransomware |
| İlk Görülen Yıl | 2021 |
| Diğer İsimler | ALPHV |
Tehdit Göstergeleri (IOC)
- SHA256:
4729c95c7b1da0c7176d100bb5fccea3b1c467f295e37677fab3b50d41ff1ff0 - MD5:
9adec3dda8427bf36fb83f6c384da2c5
Sistem Temizleme Rehberi
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Fidye ödemeyin — dosyaları geri alma garantisi yoktur
- Etkilenen sürücüleri karantinaya alın
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Mevcut decryptor tool'ları deneyin (NoMoreRansom projesi)
- Yetkililere ihbarda bulunun
- Temiz bir yedekten kurtarın
YARA Kuralı İpuçları
rule BlackCat_SHA256 {
meta:
description = "BlackCat sample: 4729c95c7b1da0c7"
threat_level = "critical"
first_seen = "2023-03-14"
condition:
hash.sha256(0, filesize) == "4729c95c7b1da0c7176d100bb5fccea3b1c467f295e37677fab3b50d41ff1ff0"
}
BlackCat — Malware Profile
BlackCat, Rust ile yazılan ransomware'dir.
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
IOC List (2 indicators)
# SHA256
4729c95c7b1da0c7176d100bb5fccea3b1c467f295e37677fab3b50d41ff1ff0
# MD5
9adec3dda8427bf36fb83f6c384da2c5
| Type | Value | Note |
|---|---|---|
| sha256 | 4729c95c7b1da0c7176d100bb5fccea3b1c467f295e37677fab3b50d41ff1ff0 | BlackCat |
| md5 | 9adec3dda8427bf36fb83f6c384da2c5 | BlackCat |