Let's say I know that there is a computer than is heavily infested with viruses (but I do not know which kind of viruses) and needs to be nuked from orbit. And on that computer is a very important picture, png format, that I absolutely must have and can not lose. Which one will give me least chance of catching a virus?
Plug in USB and copy the picture. What would this option do? How can it infect another computer?
Go to Starbucks, connect to wifi and put the picture on cloud storage, let's say Google drive or Dropbox under a throwaway account and go on another computer to retrieve it. Surely Dropbox or Google would scan the image and remove malicious code no? How would this option infect the computer?
Look at the hex of the image, take a picture of hex piece by piece and then use OCR to reconstruct the hex on the other computer. Image hex can not be infected right?
Is there any way to safely retrieve a picture from infected computer?