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New VPN Backdoor

Schneier on Security

A newly discovered VPN backdoor uses some interesting tactics to avoid detection: When threat actors use backdoor malware to gain access to a network, they want to make sure all their hard work can’t be leveraged by competing groups or detected by defenders.

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China-linked actor’s malware DeepData exploits FortiClient VPN zero-day

Security Affairs

Chinese threat actors use custom post-exploitation toolkit ‘DeepData’ to exploit FortiClient VPN zero-day and steal credentials. Volexity researchers discovered a vulnerability in Fortinet’s Windows VPN client that China-linked threat actor BrazenBamboo abused in their DEEPDATA malware.

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Hackers Use Fake VPN and Browser NSIS Installers to Deliver Winos 4.0 Malware

The Hacker News

Cybersecurity researchers have disclosed a malware campaign that uses fake software installers masquerading as popular tools like LetsVPN and QQ Browser to deliver the Winos 4.0 The campaign, first detected by Rapid7 in February 2025, involves the use of a multi-stage, memory-resident loader called Catena.

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Threat Spotlight: Credential Theft vs. Admin Control—Two Devastating Paths to VPN Exploitation

Digital Shadows

Key Findings Even years after their disclosure, VPN-related vulnerabilities like CVE-2018-13379 and CVE-2022-40684 remain essential tools for attackers, driving large-scale campaigns of credential theft and administrative control. How AI and automation are amplifying the scale and sophistication of VPN attacks.

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Fog and Akira ransomware attacks exploit SonicWall VPN flaw CVE-2024-40766

Security Affairs

Fog and Akira ransomware operators are exploiting SonicWall VPN flaw CVE-2024-40766 to breach enterprise networks. Fog and Akira ransomware operators are exploiting the critical SonicWall VPN vulnerability CVE-2024-40766 (CVSS v3 score: 9.3) to breach corporate networks via SSL VPN access. ” reads the advisory.

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J-magic malware campaign targets Juniper routers

Security Affairs

It activates upon detecting a “magic packet” with predefined parameters, enabling attackers to establish a reverse shell, control devices, steal data, or deploy malware. The J-magic campaign is notable for targeting JunoOS, a FreeBSD-based operating system that threat actors rarely target in malware attacks.

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Do you actually need a VPN? Your guide to staying safe online!

Webroot

So maybe you’ve heard of VPNs but aren’t actually sure what they are. Simply put, a VPN creates a safe, anonymous pathway for the data you send and receive over a Wi-Fi network, allowing you to browse anonymously and access content as if you were in a different location. Do you really need a VPN for personal use? Why use a VPN?

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