1. Click to open the topic and open the given link.
2. I tried index.php and index.DS_Store, but I couldn’t find anything. Later, I tried .DS_Store, and a file was downloaded automatically, and opened with a universal text document (other opening methods may be very garbled, and everything No).
3. Found a suspect sentence in a bunch of garbled characters, similar to a txt, but separated by spaces.
After sorting, it looks like this: 1ac7e3a24e4ccb42f4e41fa7f78a6793.txt
4. After copying this text document to the url, press Enter to find the flag.
