alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET EXPLOIT_KIT JavaScript DOS Injection";
flow:established,to_client;
content:"var|20|targets|20 3d 20 7b|";
content:"CONCURRENCY_LIMIT"; distance:0;
content:"async|20|function|20|fetchWithTimeout";
content:"async|20|function|20|flood|28|target|29|"; fast_pattern;
classtype:exploit-kit;
sid:2048488; rev:1;
metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_10_06, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag DOS, updated_at 2023_10_06, reviewed_at 2024_12_24;
)