alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MSIL/Spy.Keylogger.ENJ Variant CnC Activity"; flow:established,to_server; http.request_line; content:"POST /api/webhooks/"; depth:19; http.host; content:"discord.com"; http.content_type; content:"application/x-www-form-urlencoded"; bsize:33; http.request_body; content:"username=New+User+open+your+virus&content=%60%60%60%0aUser+name+%3a+"; startswith; fast_pattern; reference:md5,9b48e6da117f45841cb629964af7e463; classtype:command-and-control; sid:2031648; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_23, deployment Perimeter, deployment SSLDecrypt, malware_family MSIL_Spy_Keylogger_ENJ, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_23;)