alert tcp $HOME_NET any -> $EXTERNAL_NET 3128:9000 (msg:"ET DELETED Possible Hupigon Connect"; flow:established,from_server; flowbits:set,ET.Hupinit2; dsize:<28; content:"HTTP/1.0 200 "; depth:13; flowbits:noalert; classtype:trojan-activity; sid:2009290; rev:2; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)