alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.Win32.VB.cefz Checkin"; flow:established,to_server; http.uri; content:"/hyper/fm.php?tp=in"; fast_pattern; content:"&tg="; reference:md5,0cace87b377a00df82839c659fc3adea; reference:url,enterprise.norman.com/resources/files/unveiling_an_indian_cyberattack_infrastructure_appendixes.pdf; classtype:command-and-control; sid:2016863; rev:4; metadata:created_at 2013_05_21, signature_severity Major, updated_at 2020_09_18;)