linux_crackme by cyrex

Determine the file type

Use the file command to determine the file type.

Test the program

Strings

Use strings to print the sequences of printable characters in files.

Analyze

Dissemble the program in GDB

The program will get an input and use strcmp to check and the jne instruction next.

The password is stored in [ebp-0x20] and moved to eax at +82. Which we can see the ASCII text in GDB peda.

Test the program