360 Security Guard is a completely free online security auxiliary tool software launched by Qihoo Company. It features several powerful functions including detection and removal of popular trojans, cleaning of malicious comments and system plug-ins, management of application software, Kaspersky antivirus, real-time system protection, and repair of system vulnerabilities. Additionally, it provides specific auxiliary functions such as comprehensive system diagnosis, popup plug-in immunity, cleaning of usage traces, and system restore. It also offers a comprehensive diagnostic report for the system, helping users quickly identify issues. This truly provides all-round system security protection for every user. The signature database has been updated to 1.0.1.1934.