PDFSIDER Malware Used to Evade Antivirus and EDR Systems

PDFSIDER Malware Used to Evade Antivirus and EDR Systems

First seen 19 Jan 2026, 18:31 UTC •GbhackersCyberpressCybersecuritynewsScworldSecurityaffairs.Co+1 •37.1

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PDFSIDER is a newly identified backdoor malware that allows attackers to maintain long-term control over Windows systems while evading detection by antivirus and endpoint detection and response tools. It employs trusted software and strong encryption to conceal its activities, enabling intruders to execute commands and navigate deeper into targeted networks.

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