Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Injector.BBYK Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/upload.php"; endswith; http.content_type; content:"multipart|2f|form|2d|data|3b 20|boundary|3d 2d 2d 2d 2d|"; startswith; http.request_body; content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|blob|22|"; fast_pattern; content:"name|3d 22|blob|5f|num|22|"; distance:0; content:"name|3d 22|total|5f|blob|5f|num|22|"; distance:0; reference:md5,02074ca4d051755fa756e95166d56825; classtype:trojan-activity; sid:2039579; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_10_26, deployment Perimeter, malware_family Win32_Injector_BBYK, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_26;)