ET HUNTING JavaScript Engine JIT Forcing Observed - Investigate Possible Exploitation M9
Sourceet/open
CreatedNovember 25, 2024
UpdatedDecember 4, 2024
Classificationunknown
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING JavaScript Engine JIT Forcing Observed - Investigate Possible Exploitation M9"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/javascript"; 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:2058060; 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 2859133; target:dest_ip;)
Metadata
affected productWeb_Browsers
attack targetClient_Endpoint
tls stateTLSDecrypt
created at2024_11_25
deploymentSSLDecrypt
confidenceMedium
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_12_04
former sid2859133
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