alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Fareit Variant Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/otproc.asp"; bsize:11; http.user_agent; content:"Indy|20|Library|29|"; endswith; http.request_body; content:"sGbn="; startswith; fast_pattern; content:"&sGbn1="; distance:0; content:"&n5uid="; distance:0; http.header_names; content:!"Referer"; reference:md5,bf0c3851bd0cdd2bbdd3902326e37688; classtype:trojan-activity; sid:2033322; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_07_14, deployment Perimeter, malware_family Win32_Fareit, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_14;)