alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED W32/Onkod.Downloader Executable Download"; flow:established,to_server; content:"/js/"; http_uri; content:".exe"; fast_pattern; http_uri; content:"User-Agent|3A 20|Mozilla/5.0 (Windows NT 6.1|3b| WOW64|3b| rv|3a|22.0) Gecko/20100101 Firefox/22.0|0D 0A|"; http_header; pcre:"/\x2Fjs\x2F[\r\n]*\x2Eexe$/U"; reference:url,blog.fortinet.com/Avoiding-Heuristic-Detection/; classtype:trojan-activity; sid:2017617; rev:4; metadata:created_at 2013_10_18, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_16;)