alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP InstallCore PUA/Adware Activity M1"; flow:established,to_server; http.uri; content:"/gettrk_l?partner="; startswith; http.user_agent; bsize:11; content:"WinHTTP/1.0"; fast_pattern; classtype:pup-activity; sid:2022821; rev:6; metadata:created_at 2016_05_18, confidence High, signature_severity Minor, updated_at 2024_04_14;)