PC
How unhide files in memory card due to cause of virus

Check whether the files are not in hidden mode in memory card. Follow the following steps.
Step 1: Click on the below link and download the file “AutorunExterminator”
http://en.kioskea.net/download/download-11613-autorun-exterminator
Extract it –> Double-click on “AutorunExterminator” –> Plug your Memory Card now.
This will remove the autorun.inf files from your Memory Card and also from the drives.
Step 2: Click on “Start” –>Run –> type cmd and click on OK.
Here I assume your Memory Card as G:
Enter this command.
attrib -h -r -s /s /d g:*.*
You can copy the above command –> Right-click in the Command Prompt and paste it.
Note : Replace the letter g with your Memory Card letter.
Now check for your files in Memory Card.
Step 3: After that, download the Malwarebytes’ Anti-Malware from the below link
http://en.kioskea.net/download/download-105-malwarebytes-anti-malware
Update it –> Perform “Full Scan”
Note : Default selected option is “Quick Scan”.