Malicious SonicWall SMA wsproxy Request Tunneling Internal SSH

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1090Proxy
Exfiltration
Impact

What it detects

This rule detects abuse of the SonicWall SMA wsproxy endpoint to tunnel SSH traffic to internal hosts. During the SonicWall SMA 0-day exploitation the actor issued wsproxy requests specifying serviceType SSH with an arbitrary host and port to pivot into the internal network over the appliance. Proxying arbitrary internal services through the VPN gateway enables lateral movement and hands the attacker deep network access.

Reporting behind it

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Malicious SonicWall SMA wsproxy Request Tunneling Internal SSH

Pivot detection · T1090 · 9 related

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