Risky Bulletin Newsletter
January 30, 2026
Risky Bulletin: eScan antivirus distributes backdoor in latest supply chain attack
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News Editor
Cybersecurity firm MicroWorld Technologies, the maker of the eScan antivirus, has fallen victim to a cyberattack after an unidentified threat actor breached its software update infrastructure and deployed malware to customer environments.
The incident took place last week, on January 20, and only lasted for about an hour, according to reports from rival security firms Morphisec and Kaspersky, both of which spotted the malware being delivered to customer systems.
The final payload in the attack was a new backdoor hidden in the Reload.exe file that modified the eScan configuration to disable future updates and established a scheduled task for persistence on the infected host.