![]() Now, until the new autoblock defaults go into effect, when Office opens a document, it checks if it is tagged with a "Mark of the Web" (MoTW), which means it was downloaded from the Internet. This will automatically thwart attacks that deliver malware on home and enterprise networks via malicious Office docs, including various information-stealing trojans and malicious tools used by ransomware gangs. ![]() "The change will begin rolling out in Version 2203, starting with Current Channel (Preview) in early April 2022."Īfter this change rolls out, Office users will no longer be able to enable macros with a click of a button after they're automatically blocked. ![]() "This change only affects Office on devices running Windows and only affects the following applications: Access, Excel, PowerPoint, Visio, and Word," the Microsoft Office Product Group said today. Using VBA macros embedded in malicious Office documents is a very popular method to push a wide range of malware families in phishing attacks, including Emotet, TrickBot, Qbot, and Dridex. Microsoft announced today that it will make it difficult to enable VBA macros downloaded from the Internet in several Microsoft Office apps starting in early April, effectively killing a popular distribution method for malware.
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