### Comment:
What are some common techniques used to hide malware in legitimate-looking files?

### REPLY:
One common technique to hide malware in legitimate-looking files is through file extension manipulation. By changing the file extension to something commonly associated with harmless files, such as .jpg or .doc, the malware can deceive users into thinking it is a harmless file. Another technique is called file embedding, where the malware is embedded within a legitimate file, such as a PDF or a Word document. This can make it harder for antivirus software to detect the malware, as it appears to be part of a harmless file.