alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/LeftHook Stealer CnC Command - save_cookies (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.connection; content:"keep-alive"; http.request_header; header_lowercase; content:"origin|3a 20|chrome-extension|3a 2f 2f|"; startswith; pcre:"/^(?:[a-z]{32})$/R"; http.request_body; content:"action=save_cookies&cookies="; startswith; fast_pattern; reference:md5,61bb691f0c875d3d82521a6fa878e402; reference:url,twitter.com/Jane_0sint/status/1648075834702413830; classtype:trojan-activity; sid:2045004; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_18, deployment Perimeter, malware_family Win32_LeftHook, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_26;)