What are some common techniques used by malware to evade detection by antivirus software?
Malware developers often employ various techniques to evade detection by antivirus software. Some common techniques include code obfuscation, polymorphism, and packing. Code obfuscation involves the modification of the malware's code to make it more difficult for antivirus programs to analyze and detect. Polymorphism refers to the ability of the malware to change its code structure or behavior to avoid detection. Packing involves compressing and encrypting the malware's code to make it harder for antivirus software to identify and analyze.
One effective technique used by malware to evade detection by antivirus software is to exploit zero-day vulnerabilities, which are unknown vulnerabilities in software that have not been patched by the vendor. By exploiting these vulnerabilities, malware can bypass antivirus detection and infect systems without being detected. Additionally, some malware may use rootkit techniques to hide their presence and activities on the infected system, making it harder for antivirus software to detect and remove them.