This month’s patch Tuesday looks to remediate 167 security vulnerabilities including two zero-day vulnerabilities, one of which is known to be actively exploited in the wild. This makes April one of those months where “Patch Tuesday” looks more like “patch the entire stack,” from servers and endpoints to network gear, browsers, and mobile devices. But […]

We’ve 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 it’s being spread. Once installed, it can collect browser data, saved passwords, and cryptocurrency wallet information, which […]

Chatbots don’t kill people. But they can help others do so. On April 9, Florida Attorney General James Uthmeier announced that his office is investigating OpenAI over the role ChatGPT might have played in a deadly shooting at Florida State University, saying: “Subpoenas are coming.” The campus attack, which happened a year ago, killed two […]

A new infostealer dubbed Omnistealer is turning the blockchain into a permanent malware hosting platform, which is bad news for both companies and everyday users. It’s pretty common for malware to store its payload on a public platform, ideally one that adds some trustworthiness to the download location, like Google docs, OneDrive, GitHub, npm, PyPI, […]

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 images allegedly downloaded by Meta employee This fake […]

Opening the wrong PDF in Adobe Reader was enough to let criminals quietly spy on your computer and unleash more attacks, even though everything looked normal. A researcher analyzed a malicious PDF and found that it abused a previously unknown flaw (a “zero‑day”) in Adobe Acrobat Reader. When a victim simply opens this PDF, hidden […]

Background 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 of BX RAT that has targeted users since June 2023. One of the key […]

Claude’s rapid growth—nearly 290 million web visits per month—has made it an attractive target for attackers, and this campaign shows how easy it is to fall for a fake site. We discovered a fake website impersonating Anthropic’s Claude to serve a trojanized installer. The domain mimics Claude’s official site, and visitors who download the ZIP […]

ClickFix campaigns are looking for alternatives now that many Mac users have been made aware of the dangers of pasting certain commands into Terminal. Researchers found that ClickFix has kept the same social engineering playbook but completely sidestepped Terminal by using the applescript:// URL scheme to auto‑open Script Editor with a ready‑to‑run script that pulls […]

A fake Microsoft support website is tricking people into downloading what looks like a normal Windows update. Instead, it installs malware designed to steal passwords, payment details, and account access. Because the file looks legitimate and avoids detection, it can slip past both users and security tools. A very convincing Windows update We spotted the […]