alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Privdog Update check"; flow:established,to_server; http.uri; content:"/update.inf"; http.header; content:"X-TA-ClientVer|3a 20|"; fast_pattern; content:"X-TA-ClientOS|3a 20|"; reference:url,blog.hboeck.de/archives/866-PrivDog-wants-to-protect-your-privacy-by-sending-data-home-in-clear-text.html; reference:url,blog.lumension.com/9848/whats-worse-than-superfish-meet-privdog-leaving-users-wide-open-to-attacks/; classtype:policy-violation; sid:2020580; rev:4; metadata:created_at 2015_02_27, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_29;)