alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.JS.QLP Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/read.php?nm="; startswith; http.header_names; content:!"User-Agent|0d 0a|"; classtype:command-and-control; sid:2015673; rev:4; metadata:created_at 2012_08_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;)