Phobos | Bedrohungsstufe: high | Typ: Ransomware

Kryptografische Kennungen

SHA256ef2e0cc0c05fb633f539b333d88842ebef9a357d790fe1dd3cb28934be350d3f
MD54230714977f5c09548b175207a2dd19f
Dateitypexe
Größe56.0 KB
Erstsichtung2023-03-10
Dateinamesvhost.exe.tojestmalware
TagsPhobos

Malware-Familie: Phobos

Phobos, RDP açıkları kullanan ransomware'dir.

TypRansomware
ProgrammierspracheC++
ZielplattformWindows
C2-Protokoll
ZweckRDP tabanlı ransomware
Jahr der Erstsichtung2019
Andere NamenEking

Bedrohungsindikatoren (IOC)

  • SHA256: ef2e0cc0c05fb633f539b333d88842ebef9a357d790fe1dd3cb28934be350d3f
  • MD5: 4230714977f5c09548b175207a2dd19f

Anleitung zur Systembereinigung

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Zahlen Sie kein Lösegeld — es gibt keine Garantie für die Wiederherstellung
  3. Stellen Sie die betroffenen Laufwerke unter Quarantäne
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Probieren Sie verfügbare Entschlüsselungstools (Projekt NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Hinweise für YARA-Regeln

rule Phobos_SHA256 {
    meta:
        description = "Phobos sample: ef2e0cc0c05fb633"
        threat_level = "high"
        first_seen = "2023-03-10"
    condition:
        hash.sha256(0, filesize) == "ef2e0cc0c05fb633f539b333d88842ebef9a357d790fe1dd3cb28934be350d3f"
}

Phobos — Malware-Profil

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.

Malware-Typ
Ransomware
Programmiersprache
C++
C2-Protokoll
Zielsysteme
Windows
Auch bekannt als (AKA)
Eking

Technische Details

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.

Attribution / Bedrohungsakteur

WIZARD SPIDER (related lineage), Dharma/CrySis family

Fähigkeiten & Verhalten

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-Liste (2 Indikatoren)

IOC — Phobos
# SHA256 ef2e0cc0c05fb633f539b333d88842ebef9a357d790fe1dd3cb28934be350d3f # MD5 4230714977f5c09548b175207a2dd19f
TypWertBemerkung
sha256 ef2e0cc0c05fb633f539b333d88842ebef9a357d790fe1dd3cb28934be350d3f
md5 4230714977f5c09548b175207a2dd19f
Tags
phobosransomwaremalwarehighsha256analizzenginleştirilmiş