alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Retadup CnC Checkin M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"4D53473A213A"; content:"20457865637574656420417320"; distance:0; fast_pattern; content:"0D0A"; endswith; reference:url,blog.trendmicro.com/trendlabs-security-intelligence/monero-mining-retadup-worm-goes-polymorphic-gets-an-autohotkey-variant/; classtype:command-and-control; sid:2027078; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_03_13, deployment Perimeter, malware_family Retadup, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_03_24;)