Here's a tutorial to use the Virus Scanner facility on Cpanel Hosting:
1. Login Cpanel
2. Backup first
3. Click Menu Virus Scanner
4. Select what to scan, email only/all/public_html only/public_ftp only
5. Click Scan Now
6. Wait for 100% processing
7. After completion, a popup will appear with information on whether there is a virus or not on your hosting
8. if any, you can select the virus to be removed
9. if not, it will return to stage 4
10. Finish