What Is Fileless Malware?
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Fileless malware is a type of malicious software (malware) that does not rely on the download of an executable file to infect a computer. Instead, it takes advantage of existing software on the computer, such as the operating system, to infect and execute malicious code. Fileless malware can be hard to detect and remove because it does not leave any trace of an executable file on the system. It is often spread through phishing emails or malicious websites that exploit vulnerabilities in the browser or operating system.