Sebastian's Blog

software developer. security enthusiast.

Day: 16 December 2019

HV19.16 B0rked Calculator

After poking around with ghidra I found the part which checks the input and calls the responsible math function (which are all nop). I used ghidras rename feature to rename these functions. Searching for references to this functions shows, that there are also called in another part of the program. The part calculates some string […]