Tracking Mirai Variant Nexcorium: A Vulnerability-Driven IoT Botnet Campaign

IoT devices are increasingly prime targets for large-scale attacks due to their widespread use, lack of patching, and often weak security settings. Threat actors continue exploiting known vulnerabilities to gain initial access and deploy malware that can persist, spread, and Read More …

From fake Proton VPN sites to gaming mods, this Windows infostealer is everywhere

Malwarebytes Labs researchers uncovered multiple campaigns distributing an infostealer we track as NWHStealer, using everything from fake VPN downloads to hardware utilities and gaming mods. What makes this campaign stand out isn’t just the malware, but how widely and convincingly Read More …

JanelaRAT: A financial threat targeting users in Latin America

JanelaRAT is a malware family that takes its name from the Portuguese word “janela” which means “window”. JanelaRAT looks for financial and cryptocurrency data from specific banks and financial institutions in the Latin America region. JanelaRAT is a modified variant Read More …

SparkCat malware returns to target Android and iOS users, hiding in innocent apps to try and steal your details

SparkCat, a mobile-first infostealer that targets people’s cryptocurrencies, is back with new upgrades that make it more difficult to spot. Cybersecurity researchers Kaspersky claim to have found multiple apps both in the Apple App Store and the Google Play Store Read More …

vSphere and BRICKSTORM Malware: A Defender’s Guide

Building on recent BRICKSTORM research from Google Threat Intelligence Group (GTIG), this post explores the evolving threats facing virtualized environments. These operations directly target the VMware vSphere ecosystem, specifically the vCenter Server Appliance (VCSA) and ESXi hypervisors. To help organizations Read More …

A laughing RAT: CrystalX combines spyware, stealer, and prankware features

In March 2026, Kaspersky researchers discovered an active campaign promoting previously unknown malware in private Telegram chats. The Trojan was offered as a MaaS (malware‑as‑a‑service) with three subscription tiers. It caught the researchers attention because of its extensive arsenal of capabilities. Read More …

North Korea-Nexus Threat Actor Compromises Widely Used Axios NPM Package in Supply Chain Attack

Google Threat Intelligence Group (GTIG) is tracking an active software supply chain attack targeting the popular Node Package Manager (NPM) package “axios.” Between March 31, 2026, 00:21 and 03:20 UTC, an attacker introduced a malicious dependency named “plain-crypto-js” into axios Read More …

Bogus Avast website fakes virus scan, installs Venom Stealer instead

A fake website impersonating Avast antivirus is tricking people into infecting their own computers. The site looks legitimate, runs what appears to be a virus scan, and claims your system is full of threats. But the results are fake: when Read More …

Infiniti Stealer: A new macOS infostealer using ClickFix and Python/Nuitka

A previously undocumented macOS infostealer has surfaced during our routine threat hunting. Malwarebytes Labs researchers initially tracked it as NukeChain, but shortly before publication, the malware’s operator panel became publicly visible, revealing its real name: Infiniti Stealer. This malware is Read More …