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 number of advanced features, including custom functions and toolbars. Crooks have been using XLL files in phishing attacks, successfully delivering malware, infostealers, […]
Microsoft’s decision to block Visual Basic for Applications (VBA) macros by default for Office files downloaded from the internet has led many threat actors to improvise their attack chains in recent months. Now according to Cisco Talos, advanced persistent threat (APT) actors and commodity malware families alike are increasingly using Excel add-in (.XLL) files as […]
Researchers have identified seven vulnerabilities in the LibXL C library, used to read Excel files. Each of the vulnerabilities are rated 8.8 in severity on the Common Vulnerability Scoring System scale. Read More
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