Maybe there is a virus in your computer that infected the file you uploaded.
1, kill virus before uploading files.
2. Download the latest version of Tencent Computer Manager "8.5", check the computer first, and open all firewalls to prevent other system files from being infected.
3. Open the antivirus page and start killing. Remember to turn on the red umbrella engine.
4. If ordinary killing can't solve the problem, you can open Tencent Computer Manager-Toolbox-Stubborn Trojan Massage-for in-depth killing.
Scan.
5. After killing all viruses, restart the computer immediately, and then conduct a security check to remove redundant system cache files to avoid secondary infection.
If you are not satisfied with my answer, you can continue to ask questions or make valuable suggestions. Thank you.