Dafu Lottery Linux Version Website Maintenance Log

Maintenance Time: 2026-03-28

Maintenance Content: Handling the issue where “Column Management/Help Center Category” in the backend was injected with a webshell.

During this inspection, it was discovered 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 maintenance work completed this time is as follows:

1. Cleaned up malicious category content in the database, restored normal names and hierarchy of Help Center categories;

2. Deleted abnormal files generated by cache and落地后门文件 (persisted backdoor files);

3. Added dangerous content interception to the backend column management function to prevent malicious PHP code from being written again;

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

Maintenance Result: The malicious category content has been cleared, abnormal backdoor files have been deleted, Help Center categories have been restored to normal, and related risk entry points have been basic hardening. The website is currently running normally.

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