alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Neshta.A Posting Data"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"name=|22|file|22 3b 20|filename=|22|Browser"; fast_pattern; http.content_type; content:"multipart/form-data|3b 20|boundary="; startswith; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|user-agent|0d 0a|"; content:!"|0d 0a|accept|0d 0a|"; nocase; reference:md5,e93e5af213707ef1888784fa1e709004; classtype:trojan-activity; sid:2021923; rev:5; metadata:created_at 2015_10_07, malware_family Win32_Neshta_A, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_20;)