Cybersecurity researchers at Fortinet FortiGuard Labs have uncovered a sustained supply chain attack targeting QuickFox, a VPN and network acceleration tool popular among overseas Chinese users. The attack, active since at least August 2025, distributes a trojanized Windows installer that delivers the FDMTP backdoor to compromise user systems.
Cybersecurity researchers have disclosed what has been described as a "long-standing supply chain attack" on QuickFox, a virtual private network (VPN) and network acceleration tool designed for overseas Chinese users. According to Fortinet FortiGuard Labs, the supply chain attack has been ongoing since at least August 2025 and involves a trojanized version of the application to deliver FDMTP, a
Originally published at thehackernews.com
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