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

### REPLY:
To evade antivirus detection in malware, you can employ various techniques such as using packers and crypters to obfuscate the code, polymorphic or metamorphic techniques to constantly change the signature of the malware, or using rootkit functionality to hide the presence of the malware on the system. Additionally, you can use sandbox evasion techniques like checking for virtual environments or analyzing the behavior of antivirus software to avoid detection.