Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING JavaScript Engine JIT Forcing Observed - Investigate Possible Exploitation M8"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/html"; http.response_body; content:"|28|let|20|"; fast_pattern; pcre:"/^\s*[^\x29]*\x29\s*(?(?=\x7b)\x7b[^\x7d]*\x7d|\S[^\x3b]*\x3b)/Rsi"; classtype:unknown; sid:2058059; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_11_25, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_04, former_sid 2859132; target:dest_ip;)