Identificadores criptográficos
| SHA256 | 84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23 |
|---|---|
| MD5 | 578244d3c1afbe8009f04bbc9eb54076 |
| Tipo de arquivo | exe |
| Tamanho | 55.5 KB |
| Primeira detecção | 2022-12-19 |
| Nome do arquivo | 84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23 |
| Tags | exe, Phobos, Ransomware |
Família de malware: Phobos
Phobos, RDP açıkları kullanan ransomware'dir.
| Tipo | Ransomware |
|---|---|
| Linguagem de programação | C++ |
| Plataforma alvo | Windows |
| Protocolo C2 | — |
| Finalidade | RDP tabanlı ransomware |
| Ano da primeira detecção | 2019 |
| Outros nomes | Eking |
Indicadores de ameaça (IOC)
- SHA256:
84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23 - MD5:
578244d3c1afbe8009f04bbc9eb54076
Guia de limpeza do sistema
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Não pague o resgate — não há garantia de recuperar os arquivos
- Coloque as unidades afetadas em quarentena
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Experimente as ferramentas de descriptografia disponíveis (projeto NoMoreRansom)
- Yetkililere ihbarda bulunun
- Temiz bir yedekten kurtarın
Dicas de regras YARA
rule Phobos_SHA256 {
meta:
description = "Phobos sample: 84ad231f0d74cd4b"
threat_level = "high"
first_seen = "2022-12-19"
condition:
hash.sha256(0, filesize) == "84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23"
}Phobos — Perfil do malware
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.
Detalhes técnicos
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.
Atribuição / Ator da ameaça
WIZARD SPIDER (related lineage), Dharma/CrySis family
Capacidades e comportamento
Lista IOC (2 indicadores)
# SHA256
84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
# MD5
578244d3c1afbe8009f04bbc9eb54076
| Tipo | Valor | Nota |
|---|---|---|
| sha256 | 84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23 | |
| md5 | 578244d3c1afbe8009f04bbc9eb54076 |