Identificadores criptográficos
| SHA256 | a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420 |
|---|---|
| MD5 | 1f4ee724e5385a77dd198fd9998f7b86 |
| Tipo de archivo | zip |
| Tamaño | 56.2 KB |
| Primera detección | 2022-12-30 |
| Nombre de archivo | a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420 |
| Etiquetas | Phobos, zip |
Familia de malware: Phobos
Phobos, RDP açıkları kullanan ransomware'dir.
| Tipo | Ransomware |
|---|---|
| Lenguaje de programación | C++ |
| Plataforma objetivo | Windows |
| Protocolo C2 | — |
| Propósito | RDP tabanlı ransomware |
| Año de primera detección | 2019 |
| Otros nombres | Eking |
Indicadores de amenaza (IOC)
- SHA256:
a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420 - MD5:
1f4ee724e5385a77dd198fd9998f7b86
Guía de limpieza del sistema
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- No pague el rescate: no hay garantía de recuperar los archivos
- Ponga en cuarentena las unidades afectadas
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Pruebe las herramientas de descifrado disponibles (proyecto NoMoreRansom)
- Yetkililere ihbarda bulunun
- Temiz bir yedekten kurtarın
Sugerencias de reglas YARA
rule Phobos_SHA256 {
meta:
description = "Phobos sample: a4a3991244de3054"
threat_level = "high"
first_seen = "2022-12-30"
condition:
hash.sha256(0, filesize) == "a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420"
}Phobos — Perfil del 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.
Detalles 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.
Atribución / Actor de amenaza
WIZARD SPIDER (related lineage), Dharma/CrySis family
Capacidades y comportamiento
Lista IOC (2 indicadores)
# SHA256
a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420
# MD5
1f4ee724e5385a77dd198fd9998f7b86
| Tipo | Valor | Nota |
|---|---|---|
| sha256 | a4a3991244de3054e92a4d3dc0eb77bca75f7e973ba0cca4787146ed0ae30420 | |
| md5 | 1f4ee724e5385a77dd198fd9998f7b86 |