Phobos | Bedrohungsstufe: high | Typ: Ransomware

Kryptografische Kennungen

SHA25681a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
MD57378712fa2b8cfa0b87ef80ca12e3ebd
Dateitypexe
Größe55.5 KB
Erstsichtung2022-10-11
Dateiname81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
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: 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
  • MD5: 7378712fa2b8cfa0b87ef80ca12e3ebd

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: 81a5ac22ffef8e50"
        threat_level = "high"
        first_seen = "2022-10-11"
    condition:
        hash.sha256(0, filesize) == "81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a"
}

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 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a # MD5 7378712fa2b8cfa0b87ef80ca12e3ebd
TypWertBemerkung
sha256 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
md5 7378712fa2b8cfa0b87ef80ca12e3ebd
Tags
phobosransomwaremalwarehighsha256analizzenginleştirilmiş