alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Monkif Checkin"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/photo/"; content:"6x5x5772=712x5772=716x"; fast_pattern; classtype:command-and-control; sid:2012505; rev:5; metadata:created_at 2011_03_15, signature_severity Major, updated_at 2024_03_17;)