alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected Win32/Hancitor Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/forum.php"; endswith; fast_pattern; http.header_names; content:!"Referer"; content:"|0d 0a|Accept|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; http.content_type; content:"application/x-www-form-urlencoded"; bsize:33; http.request_body; content:"DATA="; startswith; reference:md5,d90f5bb9e103ea6935e453a8bafe4a66; reference:url,twitter.com/james_inthe_box/status/1488521848467959810; classtype:trojan-activity; sid:2035096; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_02_04, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_04;)