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

### REPLY:
Malware can be hidden within legitimate-looking files by employing various techniques. One approach is to use file extensions that are commonly associated with harmless file types, such as .docx for Word documents or .jpg for images. Another method involves using file packers or compressors to obfuscate the malicious code. Additionally, attackers can use steganography to embed malware within images or audio files, making it harder to detect. These techniques are used to deceive users into opening or executing the files, unknowingly initiating the malware's execution.