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;
)