[Snort-sigs] Rig Exploit Kit outbound URI request signature

Nicholas Mavis (nmavis) nmavis at ...3865...
Thu Jul 3 12:49:56 EDT 2014

We have a few rules for Rig Exploit Kit however here is one for the DGA algorithm used. The reference article and rule are below:


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"EXPLOIT-KIT Rig Exploit Kit Outbound DGA Request"; flow:to_server,established; content:"nbe.html?0."; http_uri; fast_pattern:only; pcre:"/^\/nbe\.html\?0\.[0-9]{16,17}$/Ui”; flowbits:set,file.exploit_kit.jar&file.exploit_kit.silverlight; metadata:service http; classtype:trojan-activity; )
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