This rule detects the initiation of a Remote Desktop Connection using "mstsc.exe" (Microsoft Terminal Services Client) with the command-line argument '/v', which specifies the remote server to connect to. The usage of RDP (Remote Desktop Protocol) can indicate a lateral movement attempt by adversaries, utilizing legitimate accounts to gain unauthorized access to systems. By monitoring for instances of 'mstsc.exe' executing in this manner, potential misuse of Remote Desktop access can be identified and investigated.