alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Archie EK Landing Nov 10 2014"; flow:established,to_client; file_data; content:"xmlhttp.open(|22|POST|22|, |22|/foo|22|, false)|3b|"; fast_pattern; content:"xmlhttp.send(sendstr)|3b|"; distance:0; classtype:exploit-kit; sid:2019690; rev:4; metadata:created_at 2014_11_11, confidence High, signature_severity Major, updated_at 2022_03_17;)