Cybercriminals are spamming website contact forms and discussion forums to distribute Excel XLL files that download and install the RedLine password and information-stealing malware. RedLine is an ...

The use of .XLL Excel files by threat actors to infect computers with malware is growing fast. Learn more about this relatively new technique and how to protect from it. Image: Sashkin/Adobe Stock ...

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 ...

Microsoft is working on adding XLL add-in protection for Microsoft 365 customers by including automated blocking of all such files downloaded from the Internet. This will help tackle the rise of ...

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 ...

The days are numbered for hackers using Excel’s XLL features to deliver malware to Microsoft customers, the company has announced. XLL files are similar to DLL files and provide the program with a ...

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.

Microsoft may have blocked macros from running by default in its Office suite of programs, but there are workarounds, researchers are saying. Several months after the ban was introduced, one specific ...

A new report urges Microsoft Excel users to take action to protect themselves from a dramatic rise in cyberattacks using malicious add-in files. In its Threat Insights Report for the fourth quarter of ...