Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT CottonCastle/Niteris EK SilverLight Exploit April 30 2015"; flow:established,from_server; file_data; content:"AppManifest.xaml"; fast_pattern; flowbits:isset,ET.CottonCasle.Exploit; classtype:exploit-kit; sid:2021045; rev:3; metadata:created_at 2015_05_01, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)