Delan Azabani

Reversing the WRT120N's Firmware Obfuscation

Craig at /dev/ttyS0 cracks open a Linksys WRT120N to find out just what has been done to obfuscate the firmware. Using SPI to dump the raw flash data, and cleverly combining binwalk and IDA, he uncovers just what has been done to the images and even creates a tool to reverse the obfuscation.