It is possible that the malware replaced the files and hid the originals.
First, please download Malwarebytes’ Anti-Malware (black button with green and white icon) Save to the Desktop:
Follow the prompts to install the program.
Run Malwarfebytes’ AntiMalware and update the program.
Once updated, select Perform Full Scan and click the scan button.
When the scan finishes, click OK in the message box, and you will see the results of the scan.
Click the 'Remove Selected' button to get rid of the malware.
When Malwarebytes finishes, you may be prompted to reboot. If so, reboot.
>>Please post the 'Malwarebytes log' in your reply.<<
To enable the viewing of Hidden files follow these steps:
1.Close all programs so that you are at your desktop.
2.Double-click on the My Computer icon.
3.Select the Tools menu and click Folder Options.
4.After the new window appears select the View tab.
5.Put a checkmark in the checkbox labeled Display the contents of system folders.
6.Under the Hidden files and folders section select the radio button labeled Show hidden files and folders.
7.Remove the checkmark from the checkbox labeled Hide file extensions for known file types.
8.Remove the checkmark from the checkbox labeled Hide protected operating system files.
9.Press the Apply button and then the OK button and shutdown My Computer.
10.Now your computer is configured to show all hidden files.
Retired - Doin' Dis, Dat, and slapping malware.
Malware Eliminator/Member of UNITE and the
Alliance of Security Analysis Professionals