Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Sundown EK Secondary Landing T1 M2 Apr 24 2015"; flow:established,from_server; file_data; content:"System.Net.WebClient"; nocase; content:"Powershell"; nocase; content:"DownloadFile"; nocase; content:"|3b|d=unescape(m)|3b|document.write(d)|3b|"; classtype:exploit-kit; sid:2020990; rev:2; metadata:created_at 2015_04_24, confidence High, signature_severity Major, updated_at 2019_07_26;)