alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Capfire4 Checkin (register machine)"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/registraMaquina"; http.user_agent; content:"Clickteam"; startswith; reference:url,labs.alienvault.com/labs/index.php/2012/capfire4-malware-rat-software-and-cc-service-together/; classtype:command-and-control; sid:2014952; rev:7; metadata:created_at 2012_06_23, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_13;)