AI coding agents hijacked using AGENTS.md file in Downloads folder
Researchers found a malicious AGENTS markdown instruction file in a customer's Downloads folder that tricked an AI coding agent into installing a rogue npm package. [...]
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Auditing the auditor: Unmasking Apex Accelerator
Elastic Security Labs identified a malicious npm package, @apexacc/cli, which led us to an operation posing as a Web3 accelerator. That operation had spent months building a public presence, targeting cryptocurrency start-ups and founders with offers of free AI credits and coding tools, along with security audits. The group also advertised an in-person event through a dedicated invitation page, adding to its efforts to appear legitimate. The tools delivered information-stealing malware and…
The Developer is the New Perimeter: How Supply Chain Attacks Are Becoming Cloud Breaches
Key Takeaways Malicious packages can steal cloud credentials during installation, before applications run. Stolen credentials turn developer workstations and CI/CD pipelines into gateways to cloud resources. Restrict installation scripts, minimize credential privileges, protect metadata access, and monitor cloud activity. Containment requires revoking exposed credentials and investigating cloud activity beyond removing compromised packages. Qualys TotalCloud connects cloud risk signals, while…
Kothamine malware uses Tailscale’s tailcat to evade network detection
We discovered an undocumented remote-access Trojan (RAT) called Kothamine Agent. It supports more than 30 commands and it gives attackers control of an infected Windows computer: they can run commands, read and change files, and add new capabilities. Some versions can also steal browser data and record through the camera and microphone. We found Kothamine linked to malicious npm packages, which could put users and developers who install those packages at risk. In recent versions, the malware…
GTIG AI Threat Tracker: From Prompting to Autonomy – The Evolution of Adversarial AI
Executive Summary Since the release of our May 2026 report detailing adversarial misuse of artificial intelligence (AI), Google Threat Intelligence Group (GTIG) has observed forward leaning adversaries transition from basic prompting to agentic AI workflows and AI-enabled automation. In these operations, human-in-the-loop latency is dramatically reduced, compressing the traditional window for defenders to respond. In Q2 2026, GTIG observed threat actors compromise a cloud resource, then plan,…
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Shai-Hulud Rises From the Dead after 111 days
A known Shai-Hulud worm payload sat dormant for 111 days, then republished to npm, right past the malware scanning meant to catch it. Category: Research
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The security signal log tailing can't see: tracking npm cooldown removals with Elastic Agent
npm's min-release-age setting tells npm to ignore any package version published less than a set number of days ago, keeping freshly compromised releases out of npm install during the window when they do the most damage. Getting the setting onto developer workstations is straightforward. Knowing when someone quietly deletes it is a different problem entirely, and log-tailing inputs are no help because they only fire when lines are appended to a file. We built a ~40-line Common Expression…
ChainDrop supply chain compromise: Anatomy of a self-propagating worm
In this article Attack chain overviewMitigation and protection guidanceIndicators of compromise (IOC)Microsoft Defender XDR detectionsAdvanced hunting queriesLearn more Microsoft Threat Intelligence identified a large-scale npm supply chain attack affecting more than 400 packages across multiple unrelated publishers, including packages associated with major enterprise software ecosystems such as keyv, flat-cache, cache-manager, and others. The malicious releases contain a Mini Shai-Hulud…
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