Anti-virus, cleaning plug-ins, or maybe the browser (or DNS) has been hijacked.
Tencent computer housekeeper-virus killing
Tencent Computer Manager-Toolbox-Clean Plug-ins (clean up malicious plug-ins, don't delete plug-ins such as Taobao by mistake)
Tencent Computer Manager-Toolbox-Advertising Filtering
Tencent Computer Manager-Toolbox -DNS
Did you jump into the browser? If the browser jumps, it is not excluded that the browser is infected. Lock IE first.
Then kill the virus and see. Tencent Computer Manager-Real-time protection-Web firewall, open