alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ThirdEye Stealer System Information Gathering Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/general/add"; http.cookie; content:"3rd_eye|3d|"; fast_pattern; startswith; pcre:"/^[a-f0-9]{24}\x3b$/R"; reference:url,www.fortinet.com/blog/threat-research/new-fast-developing-thirdeye-infostealer-pries-open-system-information; classtype:trojan-activity; sid:2046695; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_06_29, deployment Perimeter, deployment SSLDecrypt, malware_family ThirdEye_Stealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_06_29; target:src_ip;)