alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.Dropper.Wlock Checkin"; flow:established,to_server; http.method; content:"POST"; nocase; http.request_body; content:"hardware_id="; content:"&user_id="; content:"&os_ver="; content:"&os_sp="; content:"&os_arch="; reference:md5,881e21645e5ffe1ffb959835f8fdf71d; classtype:command-and-control; sid:2013768; rev:5; metadata:created_at 2011_10_12, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08;)