BlackCat | 威胁等级: critical | 类型: Ransomware

加密标识符

SHA256e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273
MD5da0bc578134b0871ce7700c9072d2797
文件类型exe
大小45.5 KB
首次发现2023-03-14
文件名logoff.exe
标签blackcat, exe, Ransomware

恶意软件家族: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

类型Ransomware
编程语言Rust
目标平台Windows/Linux
C2 协议
用途Çapraz platform ransomware
首次发现年份2021
别名ALPHV

威胁指标 (IOC)

  • SHA256: e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273
  • MD5: da0bc578134b0871ce7700c9072d2797

您可以在 VirusTotal 上验证此样本的所有哈希值。

系统清理指南

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. 不要支付赎金——无法保证恢复文件
  3. 隔离受影响的驱动器
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. 尝试可用的解密工具(NoMoreRansom 项目)
  6. 向执法部门(网络犯罪部门)报案
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA 规则提示

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: e9cef52bf082c877"
        threat_level = "critical"
        first_seen = "2023-03-14"
    condition:
        hash.sha256(0, filesize) == "e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273"
}

BlackCat — 恶意软件档案

BlackCat, Rust ile yazılan ransomware'dir.

恶意软件类型
Ransomware
编程语言
Rust
C2协议
目标系统
Windows/Linux
别名 (AKA)
ALPHV

技术细节

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.

归因 / 威胁行为者

ALPHV (linked to DarkSide/BlackMatter)

能力与行为

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列表 (2 个指标)

IOC — BlackCat
# SHA256 e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 # MD5 da0bc578134b0871ce7700c9072d2797
类型备注
sha256 e9cef52bf082c87766bbac0b3324c3d76e66e9d5b943e751a04583dc041a0273 Sample:BlackCat
md5 da0bc578134b0871ce7700c9072d2797 Sample:BlackCat
标签
blackcatransomwaremalwarecriticalsha256hash-analizi