alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Baidu.com Spyware Bar Reporting"; flow:to_server,established; content:"/update/barcab/"; nocase; http_uri; reference:url,www.pctools.com/mrc/infections/id/BaiDu/; classtype:pup-activity; sid:2003340; rev:6; metadata:created_at 2010_07_30, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)