Which of the following best describes the action a security specialist should take to identify and mitigate the risk of a file that seems legitimate but is suspected to perform malicious activity when executed?
Update antivirus software and perform a full system scan
Review firewall rules to ensure no unauthorized traffic is allowed
Reinstall the operating system to remove all potentially compromised files
Execute the file within a sandbox to monitor its behavior
Sandboxes are used to execute files or run applications in a controlled environment to observe their behavior without risking the main system or network. If the file is indeed a Trojan, it would exhibit malicious behavior within the isolated environment. Updating antivirus software and reviewing firewall rules may be important steps for general security hygiene but aren't specific enough actions to identify a Trojan. Reinstalling the operating system is not the best initial approach to identifying a suspected Trojan, as it is more of a last-resort action after confirming malicious activity.
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What is a sandbox in cybersecurity?
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How does a sandbox help identify Trojans specifically?
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Why is it not enough to just update antivirus software in response to suspicious files?