alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Unknown Maldoc CnC Activity (2022-07-25)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/bin/KommDatenGEG.pl?user="; startswith; fast_pattern; content:"&rechner="; distance:0; content:"&rnd="; distance:0; http.header_names; content:"UA-CPU"; reference:md5,2cdae46b94ef33d20a8ace6d4d8cae56; classtype:command-and-control; sid:2037821; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_07_25, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_25, reviewed_at 2025_01_06;)