Fake ChatGPT download site infects Windows and Mac users with malware

A convincing fake website is impersonating OpenAI’s ChatGPT download page and infecting visitors with malware designed to steal passwords, browser data, cryptocurrency wallets, and other sensitive information. The site, openew.app, closely mimics OpenAI’s real ChatGPT download experience and offe...

A week in security (April 6 – April 12)

Last week on Malwarebytes Labs: Fake Claude site installs malware that gives attackers access to your computer ClickFix finds a new way to infect Macs Scammers pose as Amazon support to steal your account NSFW app leak exposes 70,000 prompts linked to individual users 30,000 private Facebook imag...

Label-Efficient Training Updates for Malware Detection over Time

Machine Learning ML-based detectors are becoming essential to counter the proliferation of malware. However, common ML algorithms are not designed to cope with the dynamic nature of real-world settings, where both legitimate and malicious software evolve. This distribution drift causes models...

New Fake Zoom Meeting Invite Scam Spreads Malware on Windows PCs

Cybersecurity researchers at Sublime Security have discovered a new scam that uses realistic, interactive JavaScript-based Zoom meeting invites to trick users into installing malware...

Internet Malware Propagation: Dynamics and Control through SEIRV Epidemic Model with Relapse and Intervention

Malware attacks in today's vast digital ecosystem pose a serious threat. Understanding malware propagation dynamics and designing effective control strategies are therefore essential. In this work, we propose a generic SEIRV model formulated using ordinary differential equations to study malware...

How fake party invitations are being used to install remote access tools

“You’re invited!” It sounds friendly, familiar and quite harmless. But in a scam we recently spotted, that simple phrase is being used to trick victims into installing a full remote access tool on their Windows computers—giving attackers complete control of the system. What appears to be a casual...

Windows Malware Uses Pulsar RAT for Live Chats While Stealing Data

We usually think of computer viruses as silent, invisible programs running in the background, but a worrying discovery shows that modern hackers are getting much more personal...

📄 Backdoor.Win32.Poison.jh Insecure File Permissions / Privilege Escalation

This python script demonstrates a local privilege escalation exploit targeting a vulnerability in the Backdoor.Win32.Poison.jh malware sample. The exploit leverages insecure file permissions created by the malware itself, allowing any local user to replace the malicious executable with arbitrary...

Torrent for DiCaprio’s “One Battle After Another” Movie Drops Agent Tesla

Bitdefender researchers warn that the torrent for Leonardo DiCaprio’s One Battle After Another is a trap deploying Agent Tesla malware. Learn how the fileless LOTL attack targets unsuspecting Windows users...

LFreeDA: Label-Free Drift Adaptation for Windows Malware Detection

Machine learning ML-based malware detectors degrade over time as concept drift introduces new and evolving families unseen during training. Retraining is limited by the cost and time of manual labeling or sandbox analysis. Existing approaches mitigate this via drift detection and selective...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in eslint-config-prettier

Summary IBM Watson Discovery Cartridge contains a vulnerable version of eslint-config-prettier Vulnerability Details CVEID:CVE-2025-54313 DESCRIPTION: eslint-config-prettier 8.10.1, 9.1.1, 10.1.6, and 10.1.7 has embedded malicious code for a supply chain compromise. Installing an affected package...

SilentSync RAT Delivered via Two Malicious PyPI Packages Targeting Python Developers

Cybersecurity researchers have discovered two new malicious packages in the Python Package Index PyPI repository that are designed to deliver a remote access trojan called SilentSync on Windows systems. "SilentSync is capable of remote command execution, file exfiltration, and screen capturing,"...

CHILLYHELL macOS Backdoor and ZynorRAT RAT Threaten macOS, Windows, and Linux Systems

Cybersecurity researchers have discovered two new malware families, including a modular Apple macOS backdoor called CHILLYHELL and a Go-based remote access trojan RAT named ZynorRAT that can target both Windows and Linux systems. According to an analysis from Jamf Threat Labs, ChillyHell is writt...

Demystifying the Role of Rule-Based Detection in AI Systems for Windows Malware Detection

Malware detection increasingly relies on AI systems that integrate signature-based detection with machine learning. However, these components are typically developed and combined in isolation, missing opportunities to reduce data complexity and strengthen defenses against adversarial EXEmples,...

Node.js Multiple Packages Embedded Malicious Code (CVE-2025-54313)

Multiple nodejs packages were embedded with malicious code. Installing an affected package executes an install.js file that launches the node-gyp.dll malware on Windows. The following nodejs packages and versions are affected: - @pkgr/core 0.2.8 - eslint-config-prettier 8.10.1, 9.1.1, 10.1.6,...

Malicious Go, npm Packages Deliver Cross-Platform Malware, Trigger Remote Data Wipes

Cybersecurity researchers have discovered a set of 11 malicious Go packages that are designed to download additional payloads from remote servers and execute them on both Windows and Linux systems. "At runtime the code silently spawns a shell, pulls a second-stage payload from an interchangeable...

Exploit for CVE-2017-0144

This repository is an offensive tool for Windows. It is an implementation of the DoublePulsar backdoor in C/C++. The tool includes a suite of exploits and detectors for various vulnerabilities, including the EternalBlue vulnerability CVE-2017-0144. The tool can be used to upload a DLL to a...

Malicious code in napi-postinstall (npm)

This package installs a windows based malware file node-gyp.dll via install.js...

MAL-2025-6021 Malicious code in @pkgr/core (npm)

This package installs a windows based malware file node-gyp.dll via install.js...

MAL-2025-6023 Malicious code in eslint-plugin-prettier (npm)

This package installs a windows based malware file node-gyp.dll via install.js...