alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT NDSW/NDSX Javascript Inject"; flow:established,to_client; http.response_body; content:"|3b|if|28|ndsj|3d 3d 3d|undefined|29 7b|function"; fast_pattern; content:"parseInt"; distance:0; content:"HttpClient|3d|function|28 29|"; distance:0; reference:url,blog.sucuri.net/2022/06/analysis-massive-ndsw-ndsx-malware-campaign.html; classtype:trojan-activity; sid:2044410; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_02_28, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_28;)