This time we got an application. If we run `strings` on it we can see ```Usage: %s <username> <password> ~> Verifying.0n3_W4rM ~> Incorrect usernamezLl1ks_d4m_T0g_ICorrect!Welcome back!CTF{%s}````zLl1ks_d4m_T0g_I` looks like a flag, but it is reversed. `I_g0T_m4d_sk1lLz` looks much better.
Alternatively we can run the application with gdb and look at the registers before both strcmps and see that the correct username is `0n3_W4rM` and the password is `I_g0T_m4d_sk1lLz`.
Flag: `CTF{I_g0T_m4d_sk1lLz}`