alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Suspicious HTTP Request to .bit domain"; flow:to_server,established; http.host; content:".bit"; fast_pattern; pcre:"/^(?:\x3a\d{1,5})?$/R"; reference:url,normanshark.com/blog/necurs-cc-domains-non-censorable/; reference:md5,243dda18666ae2a64685e51d82c5ad69; classtype:bad-unknown; sid:2018009; rev:6; metadata:created_at 2014_01_24, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_23;)