alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE lu0bot Loader HTTP Response M2"; flow:established,to_client; http.response_body; content:"/d/s/c"; depth:20; fast_pattern; content:"node.exe"; distance:0; content:"7C%"; distance:0; content:"7C%"; within:10; content:"ActiveXObject"; distance:0; content:"252Cunescape%25"; distance:0; content:"WScript"; within:23; reference:url,fumik0.com/2021/06/24/lu0bot-an-unknown-nodejs-malware-using-udp; reference:md5,79b9a5e7b2e87ad7f99fbcd7d7d0a9ed; classtype:command-and-control; sid:2034517; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_19, deployment Perimeter, malware_family lu0bot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_19;)