24 Apr, 2026

Malicious AI extensions on VSCode Marketplace steal developer data

Two malicious extensions in Microsoft’s Visual Studio Code (VSCode) Marketplace that were collectively installed 1.5 million times exfiltrate developer data to China-based servers. Both extensions are advertised as AI-based coding assistants that provide the promised functionality. However, they do not disclose the upload activity or ask users for consent to deliver data to a remote server. The VS Code Marketplace is […]

3 mins read

Microsoft Copilot Studio extension for VS Code now publicly available

Microsoft announced that the Copilot Studio extension for the Visual Studio Code (VS Code) integrated development environment is now available to all users. Developers can use it to build and manage Copilot Studio agents directly from VS Code using standard software development workflows. The VS Code cross-platform code editor is used by a large number of developers […]

2 mins read

Malicious VSCode Marketplace extensions hid trojan in fake PNG file

A stealthy campaign with 19 extensions on the VSCode Marketplace has been active since February, targeting developers with malware hidden inside dependency folders. The malicious activity was uncovered recently, and security researchers found that the operator used a malicious file posing as a .PNG image. The VSCode Market is Microsoft’s official extensions portal for the widely used […]

2 mins read

AI-Slop ransomware test sneaks on to VS Code marketplace

A malicious extension with basic ransomware capabilities seemingly created with the help of AI, has been published on Microsoft’s official VS Code marketplace. Named susvsex and published by ‘suspublisher18,’ the extension’s malicious functionality is openly advertised in its description. Secure Annex researcher John Tuckner discovered susvsex and says that it is the product of “vibe coding” and is far from sophisticated. Despite […]

2 mins read

‘WhiteCobra’ floods VSCode market with crypto-stealing extensions

A threat actor named WhiteCobra has targeting VSCode, Cursor, and Windsurf users by planting 24 malicious extensions in the Visual Studio marketplace and the Open VSX registry. The campaign is ongoing as the threat actor continuously uploads new malicious code to replace the extensions that are removed. In a public post, core Ethereum developer Zak Cole […]

3 mins read

Malicious VSCode extensions infect Windows with cryptominers

Nine VSCode extensions on Microsoft’s Visual Studio Code Marketplace pose as legitimate development tools while infecting users with the XMRig cryptominer to mine Ethereum and Monero. Microsoft VSCode is a popular code editor that allows users to install extensions to extend the program’s functionality. These extensions can be downloaded from Microsoft’s VSCode Marketplace, an online […]

3 mins read

VSCode extensions with 9 million installs pulled over security risks

Microsoft has removed two popular VSCode extensions, ‘Material Theme – Free’ and  ‘Material Theme Icons – Free,’ from the Visual Studio Marketplace for allegedly containing malicious code. The two extensions are very popular, having been downloaded nearly 9 million times in total, with users now receiving alerts in VSCode that the extensions have automatically been […]

5 mins read