alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS SideStep User-Agent"; flow:to_server,established; http.user_agent; content:"SideStep"; reference:url,github.com/chetan51/sidestep/; classtype:misc-activity; sid:2002078; rev:32; metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag User_Agent, updated_at 2020_10_08;)