alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING TA582 JS Delivery Page 2024-11-27"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"application/javascript"; http.header_names; content:"cache-control|0d 0a|content-description|0d 0a|content-disposition|0d 0a|content-transfer-encoding|0d 0a|"; nocase; http.header; content:"_PDF.js"; fast_pattern; classtype:social-engineering; sid:2057894; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_11_27, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, tag TA582, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)