19 Jul, 2025

NimDoor crypto-theft macOS malware revives itself when killed

North Korean state-backed hackers have been using a new family of macOS malware called NimDoor in a campaign that targets web3 and cryptocurrency organizations. Researchers analyzing the payloads discovered that the attacker relied on unusual techniques and a previously unseen signal-based persistence mechanism. The attack chain, which involves contacting victims via Telegram and luring them into running […]

3 mins read

Ransomware gang uses SSH tunnels for stealthy VMware ESXi access

Ransomware actors targeting ESXi bare metal hypervisors are leveraging SSH tunneling to persist on the system while remaining undetected. VMware ESXi appliances have a critical role in virtualized environments as they can run on a single physical server multiple virtual machines of an organization. They are largely unmonitored and have been a target for hackers looking to […]

2 mins read

Chinese hackers use Visual Studio Code tunnels for remote access

Chinese hackers targeting large IT service providers in Southern Europe were seen abusing Visual Studio Code (VSCode) tunnels to maintain persistent remote access to compromised systems. VSCode tunnels are part of Microsoft’s Remote Development feature, which enables developers to securely access and work on remote systems via Visual Studio Code. Developers can also execute command […]

3 mins read