alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP W32/MultiPlug.Adware Adfraud Traffic"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/sync"; depth:5; content:"/?rmbs="; within:8; fast_pattern; http.user_agent; content:"Mozilla/5.0 (Windows NT 6.1|3b 20|WOW64) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.57 Safari/537.17"; bsize:108; http.header_names; content:!"Referer|0d 0a|"; reference:url,blogs.cisco.com/security/talos/bad-browser-plug-ins; classtype:pup-activity; sid:2020457; rev:4; metadata:created_at 2015_02_17, signature_severity Minor, updated_at 2020_08_31;)