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

### REPLY:
Malware can be hidden in legitimate-looking files by using techniques such as file binder tools, which combine the malicious code with a harmless file, making it appear harmless to the user. Another method is file obfuscation, where the malware's code is encrypted or manipulated to evade detection by antivirus software. Additionally, attackers may also use file extensions that are commonly associated with harmless file types, such as .doc or .pdf, to deceive users into opening the infected files.