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HOME - Understanding Antivirus Evasion: Techniques and Protection
Understanding Antivirus Evasion: Techniques and Protection
Understanding Antivirus Evasion
Antivirus evasion refers to the techniques used by threat actors to bypass or circumvent the detection mechanisms of antivirus software. These techniques allow malicious actors to deliver and execute their malicious code without being detected by antivirus programs.
Common Methods Used by Threat Actors
Threat actors employ various methods to evade antivirus detection. Here are some commonly used techniques:
1. Polymorphic Malware
Polymorphic malware is designed to change its code structure or signature with each infection, making it difficult for antivirus software to detect. By constantly morphing, the malware can evade signature-based detection methods used by antivirus programs.
2. Encryption and Obfuscation
Threat actors often encrypt or obfuscate their malicious code to make it harder for antivirus software to analyze and detect. Encryption and obfuscation techniques can hide the true nature of the code, making it difficult for antivirus programs to identify and block.
3. Fileless Malware
Fileless malware operates in-memory, without leaving traces on the disk. This makes it challenging for antivirus software to detect and block. By leveraging legitimate system processes, fileless malware can execute malicious activities without triggering traditional antivirus alerts.
Protecting Yourself
While threat actors continue to develop new evasion techniques, there are steps you can take to protect yourself:
1. Keep Your Software Updated
Regularly update your operating system, web browsers, and other software to ensure you have the latest security patches. This helps protect against known vulnerabilities that threat actors may exploit.
2. Use a Reliable Antivirus Program
Choose a reputable antivirus program and keep it updated. Regularly scan your system for malware and ensure that real-time protection is enabled.
3. Exercise Caution Online
Avoid clicking on suspicious links or downloading files from untrusted sources. Be cautious when opening email attachments, especially if they are from unknown senders.
By staying vigilant and adopting good cybersecurity practices, you can minimize the risk of falling victim to malware and protect yourself from the evolving techniques used by threat actors.
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