Debugging Shellcode with SCLauncher and x32dbg

Summary

The tutorial demonstrates loading 32-bit shellcode with SCLauncher, attaching the matching x32dbg debugger, setting a software breakpoint, and running the code to inspect its execution.

Key points

• SCLauncher loads the shellcode into memory and pauses so the debugger can attach.
• Use the 32-bit debugger for a 32-bit SCLauncher process; the process may not appear in the attach list of the 64-bit debugger.
• The tutorial sets a software breakpoint with the BP command, then uses G to run until the breakpoint.
• At the breakpoint, the debugger shows the first shellcode instruction and lets the user inspect execution.
• SCLauncher can also be launched directly from the debugger using its command-line option.
• The next lesson will cover wrapping shellcode in a PE file and using IDA Pro.

Tools

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