alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Hotbar Spyware User-Agent (host)"; flow:established,to_server; http.user_agent; content:"host"; startswith; nocase; pcre:"/^host(?:ie|oe|oi|ol)/i"; reference:url,www.doxdesk.com/parasite/Hotbar.html; reference:url,www.pchell.com/support/hotbar.shtml; classtype:pup-activity; sid:2002164; rev:17; metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Minor, tag Spyware_User_Agent, updated_at 2024_03_12;)