alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP PUP Optimizer Pro Adware GET or POST to C2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/?q="; offset:4; depth:8; pcre:"/^\/(?:get|install)\/\?q=/"; http.header; content:"optpro"; fast_pattern; reference:url,malwr.com/analysis/NjdkMTczMDQ0MDQ0NGNmZWE0OTgzYTY2YzU5OGY2YmI/; classtype:pup-activity; sid:2018744; rev:7; metadata:created_at 2014_07_21, signature_severity Minor, updated_at 2020_10_12;)