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

### REPLY:
There are several techniques used to evade antivirus detection in malware. One method is to use packers or crypters to encrypt the malware code, making it difficult for antivirus software to detect. Another technique is to use rootkit functionality to hide the presence of the malware on the infected system. Additionally, polymorphic malware can change its code structure with each infection, making it harder for antivirus programs to recognize the malicious patterns.