Latest cybersecurity reporting from selected sources.

Researchers found China’s Daxin rootkit and a new Stupig backdoor on a Taiwan firm’s network, suggesting a stealthy intrusion dating back to 2013. Symantec’s Threat Hunter Team found Daxin running on a compromised host at a Taiwan-based subsidiary of a multinational high-tech manufacturer in 2026. Daxin is a Windows kernel-mode rootkit that Symantec first documented […]

Threat actors compromised AsyncAPI packages and weaponized trusted CI/CD workflows to distribute malware through npm. This analysis breaks down the attack chain, payload delivery, and recommended defenses. The post Unpacking the AsyncAPI npm supply chain compromise and import-time payload delivery appeared first on Microsoft Security Blog.

Huntress found an AI-generated PowerShell script used for AD reconnaissance, showing attackers are using AI to create custom, evasive tools. During an incident response investigation on June 3, 2026, Huntress analyst Jevon Ang recovered a PowerShell script from a compromised Windows Server that the attacker had used to map out the victim’s Active Directory environment. […]

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 […]

Infosec buffs say Windows users could have been infected with a nasty trojan, while Mac users got off lightly

Compromised @antv npm packages deploy the Mini Shai-Hulud payload to steal CI/CD secrets from Linux-based automation environments. The malware executes during npm install and targets credentials across GitHub, AWS, Kubernetes, Vault, npm, and 1Password platforms. The post Mini Shai Hulud: Compromised @antv npm packages enable CI/CD credential theft 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

Storm-2949 turned stolen credentials into a cloud-wide breach, moving from identity compromise to large-scale data theft without using malware. This incident shows how threat actors can exploit trusted systems to operate undetected. The post How Storm-2949 turned a compromised identity into a cloud-wide breach appeared first on Microsoft Security Blog.

Microsoft Incident Response investigated an attack operated through legitimate and trusted administrative mechanisms to blend seamlessly into routine operations and remain undetected demonstrating that intrusions have increasingly avoided using noisy exploits, obvious malware, or custom tooling, instead leveraging systems that organizations already trust within their environments. The post Undermining the trust boundary: Investigating a stealthy intrusion through third-party compromise appeared first on Microsoft Security Blog.

The website for the popular JDownloader download manager was compromised earlier this week to distribute malicious Windows and Linux installers, with the Windows payload found deploying a Python-based remote access trojan. [...]

The North Korea-aligned state-sponsored hacking group known as ScarCruft has compromised a video game platform in a supply chain espionage attack, trojanizing its components with a backdoor called BirdCallto likely target ethnic Koreans residing in China

A previously undocumented threat activity cluster known as UNC6692 has been observed leveraging social engineering tactics via Microsoft Teams to deploy a custom malware suite on compromised hosts

Hackers hijacked the npm account of the Axios package, a JavaScript HTTP client with 100M+ weekly downloads, to deliver remote access trojans to Linux, Windows, and macOS systems. [...]

The popular HTTP client known as Axios has suffered a supply chain attack after two newly published versions of the npm package introduced a malicious dependency that delivers a trojan capable of targeting Windows, macOS, and Linux systems

A China-linked advanced persistent threat actor tracked as UAT-9244 has been targeting telecommunication service providers in South America since 2024, compromising Windows, Linux, and network-edge devices. [...]

A "coordinated developer-targeting campaign" is using malicious repositories disguised as legitimate Next.js projects and technical assessments to trick victims into executing them and establish persistent access to compromised machines

Indian defense sector and government-aligned organizations have been targeted by multiple campaigns that are designed to compromise Windows and Linux environments with remote access trojans capable of stealing sensitive data and ensuring continued access to infected machines

Cybersecurity researchers have flagged a new malicious Microsoft Visual Studio Code (VS Code) extension for Moltbot (formerly Clawdbot) on the official Extension Marketplace that claims to be a free artificial intelligence (AI) coding assistant, but stealthily drops a malicious payload on compromised hosts

Cybersecurity researchers have disclosed details of a malware campaign that's targeting software developers with a new information stealer called Evelyn Stealer by weaponizing the Microsoft Visual Studio Code (VS Code) extension ecosystem

Security boffins warn flaw is now being used for ransomware attacks against live networks Microsoft says attackers have already compromised "several hundred machines across a diverse set of organizations" via the React2Shell flaw, using the access to execute code, deploy malware, and, in some cases, deliver ransomware.…