alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Toby.N Multilocker Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/picture.php"; fast_pattern; endswith; http.header_names; bsize:22; content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; http.connection; bsize:10; content:"Keep-Alive"; reference:url,malware.dontneedcoffee.com/2013/02/inside-multi-botnet-ver4-c-panel.html; classtype:command-and-control; sid:2016368; rev:6; metadata:created_at 2013_02_08, malware_family Win32_Toby_N, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_07;)