alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT HT SWF Exploit RIP M2"; flow:established,from_server; file_data; content:"<!-- saved from url=(0014)about|3a|internet -->"; content:"return navigator.appName"; content:"return navigator.platform|3b|"; content:"clsid|3a|D27CDB6E-AE6D-11cf-96B8-444553540000"; nocase; classtype:trojan-activity; sid:2021710; rev:2; metadata:created_at 2015_08_25, signature_severity Major, updated_at 2019_07_26;)