alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Win32/Hao123.C Variant CnC Activity"; flow:established,to_server; http.method; content:"POST"; http.content_type; content:"multipart/form-data|3b 20|boundary="; startswith; http.request_body; content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|ufile01|22 3b 20|filename|3d 22|boundary|22 0d 0a|Content|2d|Type|3a 20|application|2f|octet|2d|stream|0d 0a 0d 0a 2f 78 ec 05 67|"; fast_pattern; reference:md5,dd2a33d25cea02f25513940751a36649; classtype:pup-activity; sid:2034908; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_01_13, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_13;)