![](https://rossmarks.uk/blog/blog-shizz/uploads/2018/10/fridalab_example.png)
I was struggling with a recent test using frida, knowing it could do what I want but unsure how. After lots of googling and trial and error I eventually got it working.
So I decided I would make a playground to hone my frida skills. It turned out not entirely terrible, so here it is for anyone to play with.
![](https://rossmarks.uk/blog/blog-shizz/uploads/2018/10/download.png)
The code is unobfuscated so feel free to reverse and read that.
The challenges include:
Changing a hardcoded variable, Modifying the return value from a function, Running a function unused elsewhere, modifying arguments sent to functions, manipulating variables live, bruteforcing a PIN and finally modifying data on the screen.
If you solve any of these I’d be interested to see how you did, if you did in a different or unique way, feel free to share you code here or visit the “contact me” page.
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