### Comment:
What are some common methods used to evade antivirus detection in malware?

### REPLY:
To evade antivirus detection in malware, you can use various techniques such as code obfuscation, polymorphism, and encryption. Code obfuscation involves modifying the malware's source code to make it more difficult for antivirus software to detect its malicious behavior. Polymorphic malware can change its code structure and behavior each time it infects a new system, making it harder for antivirus programs to identify and block it. Additionally, encrypting the malware's code can prevent the antivirus software from analyzing its behavior, further evading detection.