Actively exploited Windows MoTW zero-day gets unofficial patch

A free unofficial patch has been released for an actively exploited zero-day that allows files signed with malformed signatures to bypass Mark-of-the-Web security warnings in Windows 10 and Windows 11. Last weekend, BleepingComputer reported that threat actors were using stand-alone Read More …

Exploited Windows zero-day lets JavaScript files bypass security warnings

An update was added to the end of the article explaining that any Authenticode-signed file, including executables, can be modified to bypass warnings. A new Windows zero-day allows threat actors to use malicious stand-alone JavaScript files to bypass Mark-of-the-Web security Read More …

New NullMixer dropper infects your PC with a dozen malware families

A new malware dropper named ‘NullMixer’ is infecting Windows devices with a dozen different malware families simultaneously through fake software cracks promoted on malicious sites in Google Search results. NullMixer acts as an infection funnel, using a single Windows executable Read More …

New ransomware hits Windows, Linux servers of Chile government agency

Chile’s national computer security and incident response team (CSIRT) has announced that a ransomware attack has impacted operations and online services of a government agency in the country. The attack started on Thursday, August 25, targeting Microsoft and VMware ESXi Read More …

That ‘clean’ Google Translate app is actually Windows crypto-mining malware

Watch out: someone is spreading cryptocurrency-mining malware disguised as legitimate-looking applications, such as Google Translate, on free software download sites and through Google searches. The cryptomining Trojan, known as Nitrokod, is typically disguised as a clean Windows app and works Read More …

New GwisinLocker ransomware encrypts Windows and Linux ESXi servers

A new ransomware family called ‘GwisinLocker’ targets South Korean healthcare, industrial, and pharmaceutical companies with Windows and Linux encryptors, including support for encrypting VMware ESXi servers and virtual machines. The new malware is the product of a lesser-known threat actor Read More …

Luna and Black Basta – new ransomware for Windows, Linux and ESXi

In Kaspersky crimeware reporting service, they analyze the latest crime-related trends we come across. If Kaspersky look back at what they covered last month, they will see that ransomware (surprise, surprise!) definitely stands out. In this blog post, Kaspersky researchers Read More …