alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Lucy Security - Awareness Landing Page M1"; flow:established,to_client; http.header; header_lowercase; content:"cache-control|3a 20|no-store|2c 20|no-cache|2c 20|must-revalidate|2c 20|post-check|3d|0|2c 20|pre-check|3d|0|0d 0a|"; content:"access-control-allow-origin|3a 20 2a 0d 0a|access-control-allow-methods|3a 20 2a 0d 0a|access-control-allow-headers|3a 20 2a 2c 20|x-"; content:"|0d 0a|"; distance:64; within:2; pcre:"/^Access-Control-Allow-Headers\x3a\x20\x2a\x2c\x20x\x2d[a-f0-9]{64}[\r\n]+$/m"; http.cookie; content:"PHPSESSID="; startswith; content:", link="; distance:0; content:", awareness_link="; distance:0; fast_pattern; classtype:bad-unknown; sid:2042971; rev:7; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2022_12_20, deployment Perimeter, deployment SSLDecrypt, malware_family Lucy, malware_family Lucy_Awareness, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_27;)