BlackCat | 威胁等级: critical | 类型: Ransomware

加密标识符

SHA25640da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f
MD5392cbe841c7bb1ead1a00213e750648c
文件类型elf
大小5595.0 KB
首次发现2023-04-13
文件名40da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f
标签blackcat, elf, 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: 40da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f
  • MD5: 392cbe841c7bb1ead1a00213e750648c

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. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

YARA 规则提示

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 40da7968b86654b9"
        threat_level = "critical"
        first_seen = "2023-04-13"
    condition:
        hash.sha256(0, filesize) == "40da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f"
}

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 40da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f # MD5 392cbe841c7bb1ead1a00213e750648c
类型备注
sha256 40da7968b86654b9af30178540a4cacaf1c61476c4fcb95e438697bb5e47854f BlackCat
md5 392cbe841c7bb1ead1a00213e750648c BlackCat
标签
blackcatransomwaremalwarecriticalsha256analizzenginleştirilmiş