CPU cache-based communication between two co-located virtual machines

Re:CPU cache-based communication between two co-located virt... by sillysaurus3 on Thursday March 30, 2017 @04:45PM (#13998713)

Another interesting way to exfiltrate data is via DNS. Few networks block DNS, so you can set up a protocol on your own DNS server to transfer data.

The bandwidth is pretty decent, too.

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Re:CPU cache-based communication between two co-located virt... by cmdrfred on Thursday March 30, 2017 @09:57PM (#14000666)

I'm still surprised how well this classic attack works. I've seen $100k IDS and firewall packages not detect this.

I use this personally. Works behind captive portals sometimes too: http://code.kryo.se/iodine/

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