$ cat writeup.md…
$ cat writeup.md…
hackerlab
Task: a tiny PE64 console binary packed with a deliberately broken UPX header asks for a username and a hex license key. Solution: emulate the UPX stub with Unicorn, recover the unpacked OEP, reimplement the mixer correctly, and generate a valid server-side key such as the one for admin.
Permission denied (requires tier.pro)
Sign in with GitHub, Discord, or Google to continue. No email required.
$sign in$ grep --similar