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low advisory

Detection of SSH Reverse Port Forwarding on Windows

Adversaries are abusing native Windows OpenSSH and Plink binaries to establish unauthorized reverse SSH tunnels, bypassing inbound connectivity controls for C2 and lateral movement.

OpenSSH +1 command-and-control lateral-movement proxy tunneling windows
1r 3t
high advisory

Microsoft Security Updates — July 2026

Roundup of Microsoft security advisories published in July 2026.

PoC PowerShell +516 roundup
10c 227i updated