Category: Challenges

This CrackMe has Anti-Debugging features. If you open it with a debugger and then run, it will detect the debugger and exit. Your task is to bypass the anti-debugging feature,

This CrackMe is packed with UPX 3.91 packer. Your task is to : Unpack it and then patch the unpacked file, or, Create a loader for it Download it here

This reverseme is written by Lena and is one of the classic reverseme’s used to learn reversing. Use this in conjunction with xAnalyzer plugin for x64dbg to practice serial key

To practice patching memory directly. Objectives: Find the correct serial key Change it to a different key of your choice Download CrackMe9.zip (password to unzip the file: crackinglessons.com)

This crackme is for learning how to put hardware breakpoints on memory addresses and then patch it to register the program. Download CrackMe8.zip (password to unzip file: crackinglessons.com)

This CrackMe teaches a specific method of cracking which is to trace the eax value and patch it. Download CrackMe7.zip (password to unzip the file: crackinglessons.com)

This crackme is written by TDC and is an excellent Remove the Nag challenge. Objectives: Remove the starting Nag Screen When the button Re-Check is clicked, a pop-up messagebox appears

A gui-based crackme written in visual studio 2017 win32 api, which creates a serial key based on user name. Objectives: Enter your first name. Crack the software to find a

A gui-based crackme written in visual studio 2017 win32 api, simulating a 30-day trial period software. Objectives: Crack it to extend beyond 30 days In the About screen – also

Another gui-based crackme written in visual studio 2017 win32 api. Objectives: Remove the 2 nag screens – one at startup and one at close of program. In the About screen