alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Agent.RTQ CnC Activity"; flow:established,to_server; content:"|0b 00 00 00|"; startswith; content:"|57 69 6e 64 6f 77 73 20|"; distance:4; within:8; content:"|00 00 00 cc ec b7 a3 20 56 65 72 20|"; distance:0; fast_pattern; reference:md5,1f2d30b383d332972d8a36b23d1d726e; classtype:command-and-control; sid:2034193; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_15, deployment Perimeter, malware_family Win32_Agent_RTQ, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_15;)