alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET CURRENT_EVENTS Current Asprox Spam Campaign"; flow:established,to_server; urilen:>60; content:"/viewtopic.php?"; http_uri; fast_pattern:only; pcre:"/\/viewtopic\.php\?[^=]+=[a-zA-Z0-9\x2b\x2f]{43}=$/U"; classtype:trojan-activity; sid:2018041; rev:4; metadata:created_at 2014_01_30, signature_severity Major, updated_at 2019_07_26;)