Bleeping Computer

Malicious Microsoft Excel add-ins used to deliver RAT malware

Researchers report a new version of the JSSLoader remote access trojan being distributed via malicious Microsoft Excel addins. The particular RAT (remote access trojan) has been circulated in the wild ...

Anthropic gives Claude shared context across Microsoft Excel and PowerPoint, enabling reusable workflows in multiple applications

Anthropic has upgraded its Claude AI model with new capabilities for Microsoft Excel and PowerPoint, marking a strategic move to expand its enterprise footprint and potentially challenging Microsoft’s ...
Infosecurity-magazine.com

Microsoft to Block Excel XLL Add-Ins to Stop Malware Delivery

Microsoft has announced plans for its 365 customers to automatically block all XLL add-in files downloaded from the internet to prevent phishing attacks relying on these types of lures. Writing on its ...
Dark Reading

Microsoft to Block Excel Add-ins to Stop Office Exploits

Microsoft plans to add a feature to Office Excel that will make it harder for cyberattackers to exploit the spreadsheet application's "add-ins" function to run malicious code on a victim's computer.
ZDNet

There's been a big rise in phishing attacks using Microsoft Excel XLL add-ins

A wave of cyberattacks is exploiting Microsoft Excel add-in files in order to deliver several forms of malware in campaigns that could leave businesses vulnerable to data theft, ransomware and other ...
Neowin

Microsoft updates Office apps with a new section for managing add-ins

Microsoft has started rolling out a new section for managing add-ins for Office apps on Windows and the web. The new add-in buttons are now available in Word, Excel, and PowerPoint. Microsoft has ...