How can malware evade detection by antivirus software?
Malware can employ various techniques to evade detection by antivirus software. This includes using code obfuscation techniques to make the malicious code difficult to analyze, encrypting the payload to avoid signature-based detection, and utilizing polymorphic or metamorphic techniques to change the malware's code structure. Additionally, malware can also use rootkit capabilities to hide its presence within the operating system.
One effective way to avoid detection by antivirus software is to use packers or crypters, which compress and encrypt the malware to make it harder for antivirus programs to detect. Another technique is to use fileless malware, which resides only in system memory, making it difficult to detect through traditional scanning methods. Additionally, attackers can also use zero-day exploits, targeting vulnerabilities that are unknown to antivirus vendors.