SystemBC Proxy Backdoor — 1.6MB SOCKS5 Proxy, C2 Konfigurasyonu Sifreli, Cobalt Strike ile Zincir | Yuksek

Manuel Statik Analiz (LLM Okumali) — SystemBC Proxy Backdoor | Tehdit: YUKSEK

Dosya Kimligi

SHA256	`3af64c28e0cedf48abc217049af66c23149fd27a1e5a57ae39afb4b98d4d3d41`
Boyut	1.667.072 byte (1.6MB)
String Sayisi	7.169

Sifrelenmis C2 Konfigurasyonu

!C2Dv%  -- C2 config sekman baslik imzasi (sifrelenmis)
F8C2YKa -- C2 referansi (sifrelenmis)
]HC2&   -- C2 referansi (sifrelenmis)

SystemBC Hakkinda

SystemBC, 2019'da ortaya cikan bir C++ SOCKS5 proxy backdoor'dur. Cobalt Strike beacon ve diger payloadlardan gelen ag trafiklerini mesgru gordurmek icin tasarlanmistir. Ryuk, Conti, BlackMatter, Cl0p ve Egregor ransomware operasyonlarinda "network relay" katmani olarak kullanilmistir. C2 adresi RC4 ile sifrelenmis binary config icindedir.

IOC

SHA256	`3af64c28e0cedf48abc217049af66c23149fd27a1e5a57ae39afb4b98d4d3d41`
Protokol	SOCKS5 Proxy
C2	RC4 sifrelenmis config

SystemBC — Malware Profile

SystemBC proxy botnet. Embedded TLS private key BEGIN/END PRIVATE KEY PEM. Tor SOCKS5 proxy tunnel. Used by Ryuk/Conti/DoppelPaymer ransomware for C2 tunneling.

Malware Type

Loader

Programming Language

C++

C2 Protocol

HTTPS

Target Systems

Windows

Also Known As (AKA)

Coroxy

Technical Details

Backdoor ailesi: TCP/HTTP C2, gizli uzak erisim, kalicilik mekanizmasi (servis/Registry), shell komutu calistirma, dosya transfer, anti-forensic teknikleri

Capabilities & Behavior

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

IOC List (1 indicators)

IOC — SystemBC

# SHA256
3af64c28e0cedf48abc217049af66c23149fd27a1e5a57ae39afb4b98d4d3d41

Type	Value	Note
sha256	3af64c28e0cedf48abc217049af66c23149fd27a1e5a57ae39afb4b98d4d3d41

SystemBC — Go to Full Profile →

C2 Servers (1 recorded servers for this family)

Address	Type	Port	Protocol	Status	Country
134.255.218.162	ip	4001	TCP	inactive	LV

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.