Identifiants cryptographiques
| SHA256 | e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 |
|---|---|
| MD5 | da0bc578134b0871ce7700c9072d2797 |
| Type de fichier | exe |
| Taille | 45.5 KB |
| Première observation | 2023-03-14 |
| Nom du fichier | logoff.exe |
| Étiquettes | blackcat, exe, Ransomware |
Famille de malware: BlackCat
BlackCat, Rust ile yazılan ransomware'dir.
| Type | Ransomware |
|---|---|
| Langage de programmation | Rust |
| Plateforme cible | Windows/Linux |
| Protocole C2 | — |
| Objectif | Çapraz platform ransomware |
| Année de première observation | 2021 |
| Autres noms | ALPHV |
Indicateurs de menace (IOC)
- SHA256:
e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 - MD5:
da0bc578134b0871ce7700c9072d2797
Guide de nettoyage du système
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Ne payez pas la rançon — rien ne garantit la récupération des fichiers
- Mettez en quarantaine les disques concernés
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Essayez les outils de déchiffrement disponibles (projet NoMoreRansom)
- Yetkililere ihbarda bulunun
- Temiz bir yedekten kurtarın
Indices de règles YARA
rule BlackCat_SHA256 {
meta:
description = "BlackCat sample: e9cef52bf082c877"
threat_level = "critical"
first_seen = "2023-03-14"
condition:
hash.sha256(0, filesize) == "e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273"
}
BlackCat — Profil du malware
BlackCat, Rust ile yazılan ransomware'dir.
Détails techniques
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 / Acteur de la menace
ALPHV (linked to DarkSide/BlackMatter)
Capacités et comportement
Liste IOC (2 indicateurs)
# SHA256
e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273
# MD5
da0bc578134b0871ce7700c9072d2797
| Type | Valeur | Note |
|---|---|---|
| sha256 | e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 | BlackCat |
| md5 | da0bc578134b0871ce7700c9072d2797 | BlackCat |