Old, Backup & Unreferenced Files - Low Security Level
Solution:
Step 1. With simple guessing try to decode the slightly obfuscated files.
Follow steps as shown in the video.
backd00r.php
replace 00 with oo
backdoor.php
Step 2. Use the decoded files as shown in the video.
Explore the lesson with same logic.
Step 3. In real life scenario you can use GHDB (Google Hacking Data Base) for searching
or
Use Dorking operators (e.g. inurl, intitle etc.) in your choice of browsers.
or
simply type - google dorking cheat sheet in your favourite browser and check the results
PseudoTime