Latest cybersecurity reporting from selected sources.

Microsoft uncovered GigaWiper, a modular Go backdoor combining three malware families with espionage, remote control, and destructive wiping features. In October 2025, Microsoft’s threat intelligence team identified destructive wiping activity inside compromised environments and traced it to a previously unknown piece of malware they’re now calling GigaWiper. The malicious code is written in Go, it […]

Microsoft on Tuesday said it disrupted a malware-signing-as-a-service (MSaaS) operation that weaponized the company's Artifact Signing system to deliver malicious code and conduct ransomware and other attacks, compromising thousands of machines and networks across the world

Fox Tempest is a financially motivated threat actor operating a malware‑signing‑as‑a‑service (MSaaS) used by other cybercriminals, including Vanilla Tempest and Storm groups, to more effectively distribute malicious code, including ransomware. The post Exposing Fox Tempest: A malware-signing service operation appeared first on Microsoft Security Blog.

Poisoned PNGs contain malicious code A fresh wave of ClickFix attacks is using fake Windows update screens to trick victims into downloading infostealer malware.…

New ClickFix attack variants have been observed where threat actors trick users with a realistic-looking Windows Update animation in a full-screen browser page and hide the malicious code inside images. [...]

Threat actors are now taking advantage of GitHub's search functionality to trick unsuspecting users looking for popular repositories into downloading spurious counterparts that serve malware

A new malware dubbed 'WogRAT' targets both Windows and Linux in attacks abusing an online notepad platform named 'aNotepad' as a covert channel for storing and retrieving malicious code. [...]

Hackers used the popular Minecraft modding platforms Bukkit and CurseForge to distribute a new 'Fractureiser' information-stealing malware through uploaded modifications and by injecting malicious code into existing projects. [...]

Microsoft reveals now-fixed flaw in Apple's App Sandbox controls could allow attackers to escalate device privileges and deploy malware.

Crafty file names, encrypted malicious code, Office flaws – ah, it's like the Before Times HP's cybersecurity folks have uncovered an email campaign that ticks all the boxes: messages with a PDF attached that embeds a Word document that upon opening infects the victim's Windows PC with malware by exploiting a four-year-old code-execution vulnerability in Microsoft Office.…