alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Generic Dropper HTTP Bot grabbing config"; flow:to_server,established; content:".txt"; nocase; http_uri; fast_pattern; content:"Pragma|3a| no-cache"; http_header; content:"User-Agent|3a| "; http_header; pcre:"/User-Agent\x3a \d{6}\x0d\x0a/H"; classtype:trojan-activity; sid:2008664; rev:11; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)