Now that we're ready to continue our analysis, we can use the following instructions to work through this portion of the analysis:

1. Open a new Terminal tab and type the following in the new Terminal session:

$ nc -lnvp 31337

2. In EDB, review the Registers and Stack windows and then press the Step Into button to execute the syscall instruction.
3. Click the Step Into button, stopping before the next syscall instruction is executed. Review the Registers window after each instruction is executed.
4. Click the Step Into button to execute the syscall instruction.
5. Repeat steps 3 and 4 two more times.
6. Next, click the Step Into button, stopping before the PUSH RBX instruction is executed at 400132 address. Review the stack and registers.
7. Click the Step Into button again to execute the PUSH RBX instruction, and review the stack.
8. Click and highlight the POP RBX instruction at 400146 and press F2 on your keyboard to set a breakpoint.
9. Click the Step Into button continually, stopping before the dec byte [r10] instruction at 40013e. Review the Registers and Stack windows.
10. Click the Step Into button, stopping before the loop 0x40013e instruction is executed. Review the Registers and Stack windows.
11. Click the Step Into button again to execute the loop instruction.
12. Repeat steps 10 and 11 three more times. Review the Registers and Stack windows.
13. Finally, press the Run button to finish executing the entire loop, pausing on the breakpoint we set in step 8. Review the Registers and Stack windows.