Latest cybersecurity reporting from selected sources.

Microsoft uncovered GigaWiper, a modular Go backdoor combining three malware families with espionage, remote control, and destructive wiping features. In October 2025, Microsoft’s threat intelligence team identified destructive wiping activity inside compromised environments and traced it to a previously unknown piece of malware they’re now calling GigaWiper. The malicious code is written in Go, it […]

Attackers Compromised More Than 70 Microsoft Repositories in Under 2 MinutesAttackers linked to the Miasma supply-chain campaign compromised a Microsoft contributor account and pushed malicious code into more than 70 repositories, using artificial intelligence-assisted coding tools as an infection path to steal credentials and developer secrets at scale.

A large-scale npm supply chain attack compromised over 90 versions of @redhat-cloud-services packages, silently infecting CI/CD environments and developer systems. The malicious code steals credentials from GitHub, cloud platforms, and local machines, then spreads like a worm by republishing trusted packages. Discover how the attack works, what data is at risk, and the steps you can take to protect your organization. The post Preinstall to persistence: Inside the Red Hat npm Miasma credential-stealing campaign appeared first on Microsoft Security Blog.

Microsoft on Tuesday said it disrupted a malware-signing-as-a-service (MSaaS) operation that weaponized the company's Artifact Signing system to deliver malicious code and conduct ransomware and other attacks, compromising thousands of machines and networks across the world

Fox Tempest is a financially motivated threat actor operating a malware‑signing‑as‑a‑service (MSaaS) used by other cybercriminals, including Vanilla Tempest and Storm groups, to more effectively distribute malicious code, including ransomware. The post Exposing Fox Tempest: A malware-signing service operation appeared first on Microsoft Security Blog.

Poisoned PNGs contain malicious code A fresh wave of ClickFix attacks is using fake Windows update screens to trick victims into downloading infostealer malware.…

New ClickFix attack variants have been observed where threat actors trick users with a realistic-looking Windows Update animation in a full-screen browser page and hide the malicious code inside images. [...]

Cybersecurity researchers have discovered a malicious npm package that comes with stealthy features to inject malicious code into desktop apps for cryptocurrency wallets like Atomic and Exodus on Windows systems

A new study of integrated development environments (IDEs) like Microsoft Visual Studio Code, Visual Studio, IntelliJ IDEA, and Cursor has revealed weaknesses in how they handle the extension verification process, ultimately enabling attackers to execute malicious code on developer machines

Unidentified threat actors have been observed targeting publicly exposed Microsoft Exchange servers to inject malicious code into the login pages that harvest their credentials

Threat actors are continuing to upload malicious packages to the npm registry so as to tamper with already-installed local versions of legitimate libraries to execute malicious code in what's seen as a sneakier attempt to stage a software supply chain attack

What a MIME field A bug in WhatsApp for Windows can be exploited to execute malicious code by anyone crafty enough to persuade a user to open a rigged attachment - and, to be fair, it doesn't take much craft to pull that off.…

Meta warned Windows users to update the WhatsApp messaging app to the latest version to patch a vulnerability that can let attackers execute malicious code on their devices. [...]

Trend Research discusses the delivery methods, custom payloads, and techniques used by Water Gamayun, the suspected Russian threat actor abusing a zero-day vulnerability in the Microsoft Management Console framework (CVE-2025-26633) to execute malicious code on infected machines.

Trend Research identified Russian threat actor Water Gamayun exploiting CVE-2025-26633, a zero-day vulnerability in the Microsoft Management Console that attackers exploit to execute malicious code and exfiltrate data.

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. [...]

ICSpector Is Now on GitHub, Scans PLCs, Extracts Info and Detects Malicious CodeMicrosoft has released a new open-source security tool to close gaps in threat analysis for industrial control systems and help address increased nation-state attacks on critical infrastructure. ICSpector, available on GitHub, can scan PLCs, extract information and detect malicious code.

Threat actors are now taking advantage of GitHub's search functionality to trick unsuspecting users looking for popular repositories into downloading spurious counterparts that serve malware

The malicious code inserted into the open-source library XZ Utils, a widely used package present in major Linux distributions, is also capable of facilitating remote code execution, a new analysis has revealed

A new malware dubbed 'WogRAT' targets both Windows and Linux in attacks abusing an online notepad platform named 'aNotepad' as a covert channel for storing and retrieving malicious code. [...]