Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MSIL/CoderVir Stealer Zip Upload"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"multipart/form-data|3b|"; startswith; http.request_body; content:"name|3d 22|file|22 3b 20|filename|3d 22|LOG|5f|"; fast_pattern; pcre:"/^[A-F0-9]{24}/R"; content:"|2e|zip|22 0d 0a|Content-Type|3a 20|application/octet-stream|0d 0a 0d 0a|PK|03 04|"; within:53; reference:md5,35ff637ac2748789925a34f893376545; classtype:command-and-control; sid:2031620; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_13, deployment Perimeter, malware_family MSIL_CoderVir, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_13;)