Last updated: September 29, 2026 at 8:42 AM UTC
All 891 Vulnerability 357 Breach 144 Threat 383 Defense 7

148 npm packages posed as student proxies to turn browsers into a DDoS botnet

Researchers at JFrog found 148 npm packages that abused the registry not to attack developers but as free hosting for a booby-trapped web proxy aimed at students trying to bypass school filters. Anyone who opened one of the proxy sites had their browser quietly conscripted into a distributed denial-of-service botnet, flooding target servers with HTTP and WebSocket traffic, alongside injected ads and tracking. Crucially, the packages contained no install-time scripts and were never meant to be added to a project, so dependency scanners and install sandboxes, which watch what runs on install, would not catch them. The operators can re-arm the dormant attack code with a single commit.

Check
Consider that npm and similar registries can host malicious web content, not just installable code; watch for browsers reaching proxy or tutoring-themed sites backed by package registries, and block known campaign domains.
Affected
Anyone, especially students, who visits one of these registry-hosted proxy sites; their browser is silently used to launch denial-of-service attacks, while organizations may see the resulting traffic from their networks.
Fix
Block the campaign's known package and domain indicators, educate users that free web proxies can weaponize their browsers, and treat public package registries as potential malware-hosting infrastructure, not just a dependency source.

LabubaRAT poses as NVIDIA software to take remote control of Windows machines

Researchers at Blackpoint Cyber detailed LabubaRAT, a previously undocumented Rust-based remote access trojan that disguises itself as NVIDIA software to blend into target systems. It arrives as an executable impersonating NVIDIA's container runtime, then profiles the host, identifying installed browsers and security products such as Microsoft Defender, CrowdStrike, and SentinelOne. From there it can run commands and scripts, capture screenshots, move files, and proxy traffic, and it communicates over multiple channels, including HTTPS, WebView2, and DNS tunneling, so access survives if one path is blocked. Its command server details are supplied at runtime, letting attackers reuse the same binary across campaigns, and there are signs it is sold as a service.

Check
Watch for executables impersonating NVIDIA components, such as an unexpected nvidia-sysruntime.exe, and hunt for host-profiling behavior and command-and-control over DNS tunneling or WebView2 that endpoint tools may not flag by default.
Affected
Windows environments where an attacker can plant the malware; LabubaRAT gives hands-on remote control, identifies and works around security tools, and maintains access over several channels, making it hard to fully evict.
Fix
Verify NVIDIA and other software against official sources, deploy endpoint detection tuned for host-profiling and multi-channel command-and-control including DNS tunneling, restrict outbound traffic, and investigate unexpected proxy or SOCKS activity from endpoints.

Fake LastPass and Bitwarden security alerts lure users to phishing sites

LastPass is warning that attackers are impersonating it and Bitwarden with fake security alerts to lure password-manager users to phishing sites. The emails, sent from look-alike domains rather than the real services, mimic corporate notices about updated security policies and push recipients to a page impersonating DocuSign. LastPass stresses its systems were not breached and the messages did not come from its infrastructure. Password managers are attractive phishing targets because compromising one can unlock every stored credential, and users often trust vendor-branded alerts. Related campaigns have pushed fake more-secure desktop apps that actually install remote-access tools, and similar lures have impersonated other password managers.

Check
Remind users that password-manager vendors do not ask for the master password, and to verify any breach or policy alert by logging in through the official site or app, not emailed links.
Affected
LastPass and Bitwarden users, and by extension every credential in their vaults; convincing vendor-branded alerts from look-alike domains can trick them into entering their master password or installing remote-access malware.
Fix
Verify security notices through official portals, enable phishing-resistant multi-factor authentication on password managers, and if credentials were entered on a phishing site, change the master password from a trusted device.

MemGhost plants lasting false memories in AI assistants through a single email

Researchers demonstrated MemGhost, an attack that uses one email to plant a false, persistent memory in an AI personal assistant with inbox access. Because these assistants keep notes about the user and reload them every session, a crafted message can trick the agent into saving a fabricated fact while keeping its reply innocuous, so the tampering goes unnoticed and steers later answers. The team trained an attacker model to write such emails automatically, reporting high success against open-source and commercial agents and showing it transfers across memory backends and survives several defenses. Unlike earlier one-shot injection that leaked data only in the moment, MemGhost's memory persists long after the email is gone.

Check
Review whether AI assistants in use have persistent memory and can read untrusted content, and check what controls govern what gets written to memory and whether changes are visible to the user.
Affected
Users of AI personal assistants with persistent memory and inbox access; a single crafted email can silently write a false memory that biases the assistant's answers across future sessions.
Fix
Prefer assistants that log and let users review memory changes, restrict what untrusted content can write to long-term memory, isolate memory from email-triggered actions, and periodically audit stored agent memories.

CrashStealer Mac malware uses an Apple-notarized app to slip past Gatekeeper

Jamf detailed CrashStealer, a macOS infostealer delivered through a signed, Apple-notarized app called Werkbit that passes Gatekeeper, since it carried a valid developer ID before Apple revoked it. Distributed as a disk image and gated behind a meeting PIN so it is served only to targeted visitors, the malware validates the victim's login password locally, then harvests broadly from browsers, cryptocurrency wallets, password managers, and the keychain, encrypting the loot before sending it out. It persists by copying and re-signing itself. There is no zero-click stage: a victim still runs the app and enters their password, but the notarized delivery and careful targeting make it more convincing than typical Mac stealers.

Check
Remind Mac users that notarization does not guarantee an app is safe, to be cautious of apps delivered by disk image behind meeting codes, and to refuse password prompts from unexpected installers.
Affected
Mac users who download and run the notarized Werkbit app and enter their password; CrashStealer then steals browser data, crypto wallets, password-manager contents, and keychain secrets, and reinstalls itself to persist.
Fix
Install apps only from trusted sources, treat unexpected password and disk-image prompts with suspicion, keep macOS and endpoint tools updated to catch known indicators, and monitor for apps copying and re-signing themselves.

Popular ModHeader dev extension pulled after hidden history collector found

Google and Microsoft removed ModHeader, a header-editing browser extension popular with developers, with about 1.6 million installs, after researchers at Stripe OLT found a hidden browsing-history collector inside the official, signed store version. The collector was dormant, gated off by an empty allow-list, and no evidence has emerged that it ever sent data, but its presence in a trusted, signed extension is the concern. Its design frustrated automated review: the data was encrypted, the upload was switched off so sandboxes saw nothing leave, and malicious code was blended into a legitimate codebase, so scanners rated it low risk. It is a reminder that a store signature proves origin, not safe behavior.

Check
Check whether ModHeader is installed on developer or tester machines, remove or update it per the vendors' guidance, and review which browser extensions have broad permissions across your organization.
Affected
Developers and testers who installed ModHeader, and their organizations; a trusted, signed extension shipped a dormant collector capable of recording visited domains, showing signed extensions can still hide unwanted behavior.
Fix
Govern browser extensions with allow-lists and permission reviews, do not treat a store signature as proof of safe behavior, prefer minimal necessary extensions, and monitor for extensions contacting unfamiliar external endpoints.

Exposed server unmasks three Evilginx phishing crews stealing Microsoft 365 sessions

A phishing operator left a Python web server exposed with directory listing on, letting researchers at Lexfo lift the entire toolkit and pivot to two more operators running three Microsoft 365 phishing campaigns. Each used a custom fork of the open-source Evilginx proxy to steal live session cookies and tokens, defeating multi-factor authentication by relaying the real login. The largest campaign ran over a year, logging 218 captured accounts, mostly corporate mailboxes, and a token file left in a public repository held 97 live Microsoft tokens. The report stresses two different MFA-bypass methods appeared, one proxying the real login and one abusing the device-code flow, which require different defenses to stop.

Check
Assess your Microsoft 365 defenses against both adversary-in-the-middle proxying and device-code abuse, hunt for suspicious token use and session reuse from unusual locations, and review Conditional Access coverage of the device-code flow.
Affected
Microsoft 365 organizations, especially corporate mailboxes; Evilginx-style proxies steal live session tokens to bypass MFA, and passkeys stop the proxy method but not the separate device-code abuse technique.
Fix
Enforce phishing-resistant authentication like passkeys against proxy phishing, use Conditional Access to block or limit the device-code flow, revoke suspicious sessions and tokens, and monitor sign-in logs for token reuse across locations.

Japan's largest taxi operator shuts down systems after a cyberattack

Nihon Kotsu, Japan's largest taxi operator, shut down internal systems after a cyberattack, disrupting parts of its operations while it investigates and recovers. Precautionary shutdowns like this are a common response to intrusions such as ransomware, aimed at containing an attacker and limiting damage while forensic work proceeds, though they also interrupt normal business. The incident fits a broader pattern of attacks against transportation and logistics providers, whose real-time operations and large customer bases make downtime costly and pressure on victims high. Full details, including whether customer data was accessed, were not yet available, but the disruption underscores how operational technology and business systems in transport are increasingly targeted.

Check
Transportation and logistics operators should review their ability to detect and contain intrusions quickly, test whether critical operations can continue during a systems shutdown, and confirm backups and incident-response plans are current.
Affected
Transportation and logistics providers whose real-time operations make downtime costly; attackers target them for disruption and leverage, and a breach can force a business-halting precautionary shutdown before data impact is known.
Fix
Segment operational and business systems, maintain tested offline backups and an incident-response plan, enforce phishing-resistant MFA on remote access, and rehearse continuing critical services during a partial or full systems shutdown.

Ghostcommit hides secret-stealing instructions inside images to slip past AI reviewers

Researchers at the ASSET Research Group demonstrated Ghostcommit, an attack that hides malicious instructions inside a PNG image so AI code reviewers miss them entirely. A harmless-looking conventions file points the coding agent to the image, whose rendered text tells the agent to read the repository's .env file and encode its secrets as a list of numbers written into the code. Because tools like CodeRabbit and Bugbot skip image files by default, the pull request passes review clean; the trap springs later when a developer asks the agent for an unrelated task. The outcome depended on the tool wrapping the model: some agents leaked secrets, while Claude Code refused.

Check
Review how your AI code reviewers and coding agents handle images and convention files like AGENTS.md, and check whether reviewers inspect image contents rather than skipping them as opaque binary files.
Affected
Teams using AI code reviewers that skip images and coding agents that auto-follow repository convention files; a merged pull request can later drive an agent to read .env and leak its secrets.
Fix
Configure AI reviewers to inspect image contents, treat convention files and repo content as untrusted input, keep secrets out of agents' reach, and require human review before agents read sensitive files.

Compromised jscrambler npm releases dropped a cross-platform infostealer on install

Attackers used a stolen publishing credential to push malicious versions of the jscrambler npm package that install a Rust infostealer as soon as the package is added to a project. Socket ties five bad versions to the same actor, published over about three hours; the malware ships as native binaries for Windows, macOS, and Linux and sweeps developer machines for cloud credentials, crypto wallets, and password-manager vaults. Because jscrambler is a build-time tool used in development and CI, the stealer runs where deploy tokens, cloud keys, and source code live. Partway through, the dropper moved into the package's main code, so installing with scripts disabled does not stop it.

Check
Check lockfiles, package logs, and CI records for the malicious jscrambler versions installed since July 11, move to a clean release or pin to 8.13.0, and clear affected versions from caches.
Affected
Developers and CI pipelines that installed the malicious jscrambler versions; the infostealer captures AWS, Azure, and Google Cloud credentials, crypto wallets and seed phrases, and password-manager vaults from the build environment.
Fix
Remove the bad versions, rotate every credential exposed in affected developer and CI environments, hunt for temp-directory binaries and hidden persistence, and pin and verify dependencies rather than trusting a maintainer account.