New Russia-Linked GREYVIBE Targets Ukraine with AI-Powered Cyberattacks

A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025. GREYVIBE, per WithSecure, is assessed to be a Russian-speaking group operating broadly in the Russian time zone,...

Fake CAPTCHA scam turns a quick click into a costly phone bill

Researchers have documented a long‑running campaign that uses fake CAPTCHA pages to trick mobile users into sending dozens of international SMS messages in the background. If you’ve spent any time on today’s web, CAPTCHAs may seem like background noise: click a few traffic lights, prove you’re...

Fake CAPTCHA IRSF Scam and 120 Keitaro Campaigns Drive Global SMS, Crypto Fraud

Cybersecurity researchers have disclosed details of a telecommunications fraud campaign that uses fake CAPTCHA verification tricks to dupe unsuspecting users into sending international text messages that incur charges on their mobile bills, generating illicit revenue for the threat actors who lea...

Fake CAPTCHA Scam Abuses Verification Clicks to Send Costly International Texts

Research from Infoblox reveals a massive Click2SMS fraud scheme using fake CAPTCHAs and back button hijacking to trick victims into sending costly international texts...

New ClickFix attack Hides in Native Windows Tools to Reduce Detection Risk

Fake CAPTCHA ClickFix attack tricks users into running malicious commands, using cmdkey and regsvr32 to maintain persistence and avoid detection on Windows...

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

A previously undocumented macOS infostealer has surfaced during our routine threat hunting. We 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 designed to steal...

The SOC Files: Time to “Sapecar”. Unpacking a new Horabot campaign in Mexico

Introduction In this installment of our SOC Files series, we will walk you through a targeted campaign that our MDR team identified and hunted down a few months ago. It involves a threat known as Horabot , a bundle consisting of an infamous banking Trojan, an email spreader, and a notably complex...

Hacked sites deliver Vidar infostealer to Windows users

In recent years, ClickFix and fake CAPTCHA techniques have become a popular way for cybercriminals to distribute malware. Instead of exploiting a technical vulnerability, these attacks rely on convincing people to run malicious commands themselves. Our researchers have recently detected a campaig...

New ClickFix Attack Targets Crypto Wallets and 25+ Browsers with Infostealer

Researchers at CyberProof have identified a new fake captcha campaign linked to the ClickFix operation. This stealthy infostealer targets over 25 browsers, cryptocurrency wallets like MetaMask, and gaming accounts by tricking users into executing malicious PowerShell commands...

ClickFix Attacks Expand Using Fake CAPTCHAs, Microsoft Scripts, and Trusted Web Services

Cybersecurity researchers have disclosed details of a new campaign that combines ClickFix-style fake CAPTCHAs with a signed Microsoft Application Virtualization App-V script to distribute an information stealer called Amatera. "Instead of launching PowerShell directly, the attacker uses this scri...

Fake CAPTCHA sites now have tutorial videos to help victims install malware

Early on in 2025, I described how criminals used fake CAPTCHA sites and a clipboard hijacker to provide instructions for website visitors that would effectively infect their own machines with an information stealer known as the Lumma Stealer. ClickFix is the name researchers have since given to...

Malicious Package

Overview deezcord.js is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs...

Malicious Package

Overview react-router-dom.js is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload...

Malicious Package

Overview etherdjs is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs npm's...

Malicious Package

Overview typescriptjs is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs...

Malicious Package

Overview dizcordjs is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs npm'...

Malicious Package

Overview ethesjs is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs npm's...

Malicious Package

Overview dezcord.js is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs npm...

Malicious Package

Overview nodemonjs is a malicious package. This is a "typosquatting" package, which means the package name is based on existing repositories, namespaces, or components, it aims to trick users to download the package which contains a malicious code. Payload behavior The malicious payload runs npm'...

10 npm Packages Caught Stealing Developer Credentials on Windows, macOS, and Linux

Cybersecurity researchers have discovered a set of 10 malicious npm packages that are designed to deliver an information stealer targeting Windows, Linux, and macOS systems. "The malware uses four layers of obfuscation to hide its payload, displays a fake CAPTCHA to appear legitimate, fingerprint...