CQURE Hacks #70: NTLM Relay Attacks in Practice: Exploiting Missing SMB Signing
In this episode, we start by verifying vulnerable configurations on SRV01 (10.10.10.20) and Windows 11 (10.10.10.40). Server and client SMB signing enforcement is false. Nmap confirms “enabled but not required,” and NetExec scans the network to list relay targets (/tmp/relay.txt). Responder (NetBIOS/LLMNR poisoner, SMB/HTTP disabled) listens on eth0. Impacket-ntlmrelayx (-i interactive, –target-file relay.txt) relays intercepted […]
