alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Parrot TDS Check M2"; flow:established,to_client; content:"if|28|typeof|20|ndsj|3d 3d 3d 22|undefined|22 29|"; fast_pattern; content:"var|20|ndsj|3d 21 21 5b 5d 2c|HttpClient|3d|function|28 29|"; distance:0; content:"|3d|new|20|XMLHttpRequest|28 29 3b|"; distance:0; threshold:type limit, track by_src, seconds 60, count 1; reference:url,decoded.avast.io/janrubin/parrot-tds-takes-over-web-servers-and-threatens-millions; classtype:exploit-kit; sid:2047070; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_08_07, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag TDS, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_07, reviewed_at 2024_12_24;)