Hi guys, I took pictures of my graduation day this morning, after plug to my computer with a converter from SD Card to USB, my images were encrypted to a weird format (Attached image). Please help to show me how to recover these files, these images are really important to me 
I scanned with Avast free but the result was “Clear”.
follow instructions here >> https://forum.avast.com/index.php?topic=194892.0
also scroll down to: SPECIFIC INFECTIONS LOGS
Follow MCShield instructions
MCShield log you copy and paste here, the other logs from Malwarebytes and FRST you attach
hi Pondus,
After a while messing around (before seeing your reply), I did the following and it worked:
1/ Run Windows Disk Prepair on my Card
2/ Use FixAttrib (Fix Attribute) provided from BKAV to show hidden folder → it appeared folder “FOUND.000”, inside it were tons of CHK file.
3/ Then I use cmd, “cd” to this folder → use “ren *.CHK *.NEF” to convert all my files back to NEF format and it worked, I can open and see it in Photoshop.
I haven’t tried the steps you provided yet. But after I ran Malwarebytes, there were 4 infected and I quarantined those. Anyway, thank you very much for your support.
If it happens again, I will try your steps and send you the log files ;D