Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Megalodon/Gomorrah/CosaNostra HTTP Bot CnC Exfil"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?hwid="; isdataat:!17,relative; http.request_body; content:".txt|22 0d 0a|Content-Type|3a 20|application/octet-stream|0d 0a|"; content:"|22|PC Name|22|"; content:"|22|Operating System|22|"; content:"|22|Anti virus|22|"; fast_pattern; content:"|22|Firewall|22|"; content:"|22|Processor|22|"; content:"|22|Memory|20|(RAM)|22|"; http.header_names; content:!"Referer"; content:!"User-Agent"; reference:url,github.com/moneermasoud/CosaNostra-HTTP-Botnet/blob/master/stub/keylogger/keylogger/Form1.vb; reference:md5,0dad0861840cb73b4cefce3dcce28fa5; classtype:command-and-control; sid:2034056; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_09_30, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_30;)