alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Uroburos/Turla CnC (OUTBOUND) 1"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/auth.cgi?mode="; fast_pattern; content:"&id="; content:"&serv="; distance:0; content:"&lang="; distance:0; content:"&q="; distance:0; content:"&date="; distance:0; reference:url,circl.lu/pub/tr-25/; classtype:command-and-control; sid:2018669; rev:4; metadata:created_at 2014_07_12, signature_severity Major, updated_at 2020_09_24;)