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SystemBC DroxiDat Multi-Purpose Proxy: Detection & IOCs

SystemBC turns infected Windows hosts into SOCKS5 and Tor proxies. 9 detection rules, 36 IOCs, 29 ATT&CK techniques and a free Splunk SPL rule.

Read the full threat intel for SystemBC DroxiDat Multi-Purpose Proxy: Detection & IOCs →

Chapters

  1. 0:00The hookSystemBC backs 11 ransomware families.
  2. 0:04The storyEstablishes persistence on systems.
  3. 0:10Attack pathExploit kits deliver it; checks for Emsisoft.
  4. 0:24AttributionAttributed to Periwinkle Tempest.
  5. 0:29Indicators of compromise31 indicators to hunt: 7 IPs, 4 domains and 3 SHA-256 hashes, and more.
  6. 0:38MITRE ATT&CK techniques29 ATT&CK techniques, from initial access to command and control.
  7. 0:43Remediation12 remediation steps are listed, 6 of them immediate.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00SystemBC backs 11 ransomware families.

0:05Establishes persistence on systems.

0:07Proxies ransomware C2 traffic.

0:11Exploit kits deliver it; checks for Emsisoft.

0:14Creates registry and task persistence.

0:17Sends encrypted beacon, executes commands.

0:20Routes C2 via SOCKS5 and Tor.

0:25Attributed to Periwinkle Tempest. Confidence: low.

0:2931 indicators to hunt: 7 IPs, 4 domains and 3 SHA-256 hashes, and more.

0:3829 ATT&CK techniques, from initial access to command and control.

0:4412 remediation steps are listed, 6 of them immediate.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.