### Comment:
How can malware be disguised to evade detection by antivirus software?

### REPLY:
Malware can be disguised in various ways to avoid detection by antivirus software. One technique is polymorphic malware, which constantly changes its code to generate unique variants that are difficult to detect. Another method is packing or encrypting the malware code to make it harder for antivirus programs to analyze. Additionally, attackers can use rootkit techniques to hide the presence of malware on a system, making it even more challenging for antivirus software to detect.