alert http $HOME_NET any -> $EXTERNAL_NET 80 (msg:"🐾 - 🚨 Possible Pikabot loader connection using Curl"; flow:to_server, stateless; http.user_agent; content:"curl/"; fast_pattern; nocase; http.host.raw; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.uri; pcre:"/^.{1}[A-Za-z0-9]{2,7}.{1}[A-Za-z0-9]{4,9}$/"; reference:url,https://malpedia.caad.fkie.fraunhofer.de/details/win.pikabot; metadata:attack_target Client_and_Server, signature_severity Major, affected_product Windows_XP_Vista_7_8_10_11_Server_32_64_Bit, mitre_tactic_id TA0011, mitre_tactic_name Command_and_Control, mitre_technique_id T1071.001, mitre_technique_name Application_Layer_Protocol_Web_Protocols, former_category MALWARE, malware_family Pikabot, created_at 2023_11_01, updated_at 2024_02_18; sid:3300732; rev:9; classtype:trojan-activity;)