How can malware be disguised to evade detection by antivirus software?
To evade detection by antivirus software, malware developers employ various techniques. One such technique is code obfuscation, where the code is intentionally made difficult to understand or analyze by adding unnecessary complexity or using encryption. Another technique is polymorphism, where the malware changes its code structure or behavior each time it infects a new system, making it harder to detect. Additionally, malware can be packed or compressed using tools to modify its binary format and bypass antivirus signatures.
One effective way to disguise malware and bypass antivirus detection is to use rootkit techniques. A rootkit is a collection of tools and techniques that enable an attacker to gain unauthorized access to a system and maintain control over it while hiding their presence. By modifying the operating system or kernel, rootkits can hide files, processes, network connections, and other malicious activities from antivirus software and other security tools.