alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE DEEP PANDA Checkin 3"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/Catelog/login1.cgi"; fast_pattern; reference:url,labs.alienvault.com/labs/index.php/2013/u-s-department-of-labor-website-hacked-and-redirecting-to-malicious-code/; reference:url,crowdstrike.com/sites/default/files/AdversaryIntelligenceReport_DeepPanda_0.pdf; classtype:command-and-control; sid:2016821; rev:5; metadata:created_at 2013_05_04, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_13;)