alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ShadowByte Botnet Framework New Zombie Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"|2f|C2WebServer|2f|controller|2f|addZombie|2e|php|3f|pcName|3d|"; startswith; fast_pattern; content:"&username="; distance:0; content:"&os="; distance:0; reference:url,x.com/ViriBack/status/1930348698388611192; reference:url,github.com/S12cybersecurity/ShadowByte-Botnet; classtype:command-and-control; sid:2062778; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_06_05, deployment Perimeter, confidence High, signature_severity Critical, tag c2, tag AI_Generated_Description, updated_at 2025_06_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)