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

### REPLY:
Malware can employ various evasion techniques to avoid detection by antivirus software. One common method is code obfuscation, where the malware's code is intentionally made complex and difficult to analyze. Another technique is polymorphism, where the malware constantly changes its code signature to bypass signature-based detection. Additionally, malware can use rootkit capabilities to hide its presence and control over the infected system. These evasion techniques help the malware to stay undetected and continue its malicious activities.