加密标识符
| SHA256 | 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a |
|---|---|
| MD5 | 7378712fa2b8cfa0b87ef80ca12e3ebd |
| 文件类型 | exe |
| 大小 | 55.5 KB |
| 首次发现 | 2022-10-11 |
| 文件名 | 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a |
| 标签 | Phobos |
恶意软件家族: Phobos
Phobos, RDP açıkları kullanan ransomware'dir.
| 类型 | Ransomware |
|---|---|
| 编程语言 | C++ |
| 目标平台 | Windows |
| C2 协议 | — |
| 用途 | RDP tabanlı ransomware |
| 首次发现年份 | 2019 |
| 别名 | Eking |
威胁指标 (IOC)
- SHA256:
81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a - MD5:
7378712fa2b8cfa0b87ef80ca12e3ebd
系统清理指南
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- 不要支付赎金——无法保证恢复文件
- 隔离受影响的驱动器
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- 尝试可用的解密工具（NoMoreRansom 项目）
- Yetkililere ihbarda bulunun
- Temiz bir yedekten kurtarın
YARA 规则提示
rule Phobos_SHA256 {
meta:
description = "Phobos sample: 81a5ac22ffef8e50"
threat_level = "high"
first_seen = "2022-10-11"
condition:
hash.sha256(0, filesize) == "81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a"
}Phobos — 恶意软件档案
Phobos, 2019 dan beri aktif Dharma kaynakli ransomware ailesidir. AES-256 + RSA-1024 hibrit sifreleme, email bazli fidye iletisimi. RDP brute force ile yayilir. C2 yok.
技术细节
Phobos ransomware emerged in December 2018 as a derivative of Dharma/CrySis ransomware. Encrypts files using AES-256 with RSA-1024 key exchange. Files are renamed with victim ID, attacker email address, and .phobos extension. Distributed primarily through RDP brute force attacks. Deletes volume shadow copies via vssadmin, disables Windows recovery, and terminates backup processes. Adds persistence via HKCU\Software\Microsoft\Windows\CurrentVersion\Run registry key and Startup folder. Contact is exclusively via email embedded in ransom note (no web portal). Variant of Dharma that emerged after its source code leaked on underground forums.
归因 / 威胁行为者
WIZARD SPIDER (related lineage), Dharma/CrySis family
能力与行为
IOC列表 (2 个指标)
# SHA256
81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
# MD5
7378712fa2b8cfa0b87ef80ca12e3ebd
| 类型 | 值 | 备注 |
|---|---|---|
| sha256 | 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a | |
| md5 | 7378712fa2b8cfa0b87ef80ca12e3ebd |