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

### REPLY:
One effective technique used by malware to evade detection is to exploit zero-day vulnerabilities in antivirus software. By identifying and exploiting these vulnerabilities, the malware can bypass the antivirus software's detection mechanisms. Additionally, some malware creators collaborate with insiders in antivirus companies to obtain information about the software's detection methods and update their malware accordingly.