2026.3.28 Dafu Lottery Linux Version Website Maintenance Log
Maintenance Date: 2026-03-28

Maintenance Content: Handled the issue of a one-liner trojan being written into the backend “Category Management/Help Center Categories”.
During this inspection, it was found that the category name field in the database `caipiao_category` table had been injected with malicious PHP code, and abnormal backdoor files were generated through the caching mechanism. After investigation, the 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: First, cleaned the malicious category content in the database and restored the normal names and hierarchy of the Help Center categories; Second, deleted the abnormal files generated by caching and the landed backdoor files; Third, added dangerous content interception to the backend category management functions to prevent malicious PHP code from being written again; Fourth, verified that the relevant abnormal files can no longer be accessed externally.
Maintenance Results: The malicious category content has been cleared, abnormal backdoor files have been deleted, the Help Center categories have returned to normal, basic hardening has been completed for the relevant risk entry points, and the website is currently running normally.
Server Hardening: Installed firewall, server hardening, changed server password, database password, and panel password