SystemBC — Örnek SHA256: 81f3a2b4 | Medium Tehdit Analizi

Cryptographic Identifiers

Malware Family: SystemBC

SystemBC, SOCKS5 proxy ve C2 dropper'dır.

Threat Indicators (IOC)

• SHA256: 81f3a2b4d61c482d118d57f730657a3ddb68d0261cae8f5497765b5af4950ea8
• MD5: c3806ca9a413b32c5ee8ff8f85882059

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

1. Disconnect the system from the network — the loader may be downloading more malware
2. Analyze every downloaded payload
3. Inspect all network traffic and cut suspicious connections
4. Run a full antivirus scan
5. Consider reimaging the system

YARA Rule Hints

rule SystemBC_SHA256 {
    meta:
        description = "SystemBC sample: 81f3a2b4d61c482d"
        threat_level = "medium"
        first_seen = "2022-12-20"
    condition:
        hash.sha256(0, filesize) == "81f3a2b4d61c482d118d57f730657a3ddb68d0261cae8f5497765b5af4950ea8"
}