### Comment:
How can malware be hidden in legitimate-looking files?

### REPLY:
One way to hide malware in legitimate-looking files is by disguising it as a harmless document or image file. For example, a malicious executable file can be renamed with a .doc or .jpg extension to trick users into thinking it is a harmless document or image. Another method is to use steganography, which involves embedding the malware within the pixels of an image or the data of a file. This can make it extremely difficult to detect the presence of malware.