alert tcp any any -> any 3389 (msg:"ET SCAN RDP Connection Attempt from Nmap"; flow:established,to_server; content:"|00 00 00 00 00|Cookie|3a 20|mstshash|3d|nmap|0d 0a|"; fast_pattern; reference:url,github.com/nmap/nmap/blob/4b46fa7097673f157e7b93e72f0c8b3249c54b4c/nselib/rdp.lua#L211; classtype:network-scan; sid:2036252; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_04_19, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_19;)