DNS Tunneling: Getting The Data Out Over Other Peoples’ WiFi
[KC Budd] wanted to make a car-tracking GPS unit, and he wanted it to be able to phone home. Adding in a GSM phone with a data plan would be too easy (and more expensive), so he opted for the hacker’s way: tunneling the data over DNS queries every time the device found an open WiFi hotspot. The result is a device that sends very little data, and sends it sporadically, but gets the messages out.
This system isn’t going to be reliable — you’re at the mercy of the open WiFi spots that are in the area. This certainly …read more
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