alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Arbitrium-RAT CnC Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/checkupdate.js?id="; startswith; fast_pattern; content:"&token="; distance:0; content:"&platform="; distance:0; reference:url,github.com/BenChaliah/Arbitrium-RAT/; classtype:command-and-control; sid:2031528; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_01_19, deployment Perimeter, malware_family Arbitrium_RAT, performance_impact Low, confidence High, signature_severity Major, updated_at 2021_01_19;)