alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE PDF 0day Communication - agent UA Feb 14 2013"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/param"; http.user_agent; bsize:5; content:"agent"; fast_pattern; http.header_names; content:"|0d 0a|Content-Length|0d 0a|"; reference:url,www.joesecurity.org/reports/report-f3b9663a01a73c5eca9d6b2a0519049e.html; classtype:trojan-activity; sid:2016411; rev:5; metadata:created_at 2013_02_15, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_10;)