### Comment:
What are some common methods used to bypass antivirus software and avoid detection?

### REPLY:
To bypass antivirus software and avoid detection, malware creators often use obfuscation techniques, such as encrypting the malicious code or using polymorphic or metamorphic malware that can change its signature with each infection. They may also employ rootkit functionality to hide the malware's presence on the system or use packers to compress and encrypt the malware, making it harder for antivirus software to detect. Additionally, attackers can leverage zero-day vulnerabilities or exploit weaknesses in antivirus software itself to evade detection.