Friday at work, all my files suddenly got an audio-pictogram and I couldn't open them anymore.
I could however still open a picture-file (I don't remember the extension) and it asked me to pay for a decryption. I thought it was a joke at first and restarted my computer, but when the problem stayed I realised I'd been infected by ransomware - it took me quite a while to realize this, especially since I was working online and not really minding my files...
It looks like the screenshot from Locky Wallpaper, but I don't recognize the other descriptions - I haven't enabled macro's or anything like that.
I haven't downloaded any attachements from unknown sources, nor clicked on any .exe files on websites.
I find it very disturbing that I can't remember which action might have caused the infection.
Is it possible to get something like this WITHOUT clicking on an .exe file?
Just by visiting a website, maybe? I really can not remember downloading anything, but then again who remembers everything they've done while being online?
My main question is this: I had 2 USB-sticks connected while I discoverd my problem. One of them had its files (2GB) infected, but the other one seemed fine.
IS IT SAFE TO PLUG THE OTHER ONE INTO MY HOME COMPUTER?
At work, they checked the infected USB-stick and couldn't find an .exe-file on it - they weren't clear on whether I could use it again or not.
I didn't think about having the other one checked because it seemed fine. They're currently too busy to help me with this and I need some files that are on the other stick so I would like to give it a try - and scan it with Panda Free Antivirus. Should I or shouldn't I?
If I disconnect my computer from the internet, does this mean the ransomware can't be activated (when it is on the stick), or is it very naive to think like that?
Any ideas? Since I don't know where the ransomware came from I'm quite taken aback to do anything on a computer now...
Thank you in advance.