2026.3.28 Dafu Lottery Linux Version Website Maintenance Log

Maintenance Time: 2026-03-28

Maintenance Content: Handling the issue of a one-line trojan being written to the backend “Category Management/Help Center Category”.

During this inspection, it was found that the category name field in the database caipiao_category table was injected with malicious PHP code, and abnormal backdoor files were generated through the cache mechanism. After investigation, the problem entry point was identified as the add and edit functions in the backend help center category management.

The following maintenance work has been completed this time:

1. Clean up the malicious category content in the database, restore the Help Center category to normal names and hierarchy.

2. Delete the abnormal files generated by the cache and the persistent backdoor files.

3. Add dangerous content interception to the backend category management functions to prevent malicious PHP code from being written again.

4. Verify that the related abnormal files can no longer be accessed externally.

Maintenance Result: The malicious category content has been cleared, the abnormal backdoor files have been deleted, the Help Center category has been restored to normal, and the related risk entry points have been basically reinforced. The website is currently operating normally.

Server Hardening: Install firewall, server hardening, modify server password, database password, and panel password.