alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Malicious TDS /indigo?"; flow:to_server,established; content:"/indigo?"; http_uri; pcre:"/\/indigo\?\d+/U"; classtype:exploit-kit; sid:2014539; rev:2; metadata:created_at 2012_04_11, signature_severity Major, tag TDS, updated_at 2019_07_26;)