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Mustang Panda Adds Signed Windows Rootkit to CoolClient Backdoor for Stealth

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Mustang Panda Adds Signed Windows Rootkit to CoolClient Backdoor for Stealth

HoneyMyte (also called Mustang Panda) has deployed an updated version of the CoolClient backdoor that incorporates a signed Windows kernel-mode rootkit, allowing the malware to hide malicious processes, files, registry objects, and command-and-control (C2) communications. Kaspersky identified victims in Myanmar, Mongolia, and Pakistan.

Why it matters: Organizations in Southeast Asia, Central Asia, and South Asia should assess exposure to HoneyMyte campaigns and review endpoint detection for unsigned kernel drivers or anomalous process hiding behavior indicative of rootkit deployment.

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