alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Vools Variant CnC Checkin"; flow:established,to_server; http.uri; content:".html?mac="; fast_pattern; content:"&ip="; distance:0; content:"&host="; distance:0; content:"&tick="; distance:0; content:"&c="; distance:0; reference:url,blog.trendmicro.com/trendlabs-security-intelligence/advanced-targeted-attack-tools-used-to-distribute-cryptocurrency-miners/; classtype:command-and-control; sid:2027470; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_06_13, deployment Perimeter, malware_family Vools, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_31;)