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Microsoft Secure

Office VBA + AMSI: Parting the veil on malicious macros

As part of our continued efforts to tackle entire classes of threats, Office 365 client applications now integrate with Antimalware Scan Interface (AMSI), enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. Macro-based threats have always been a prevalent entry point for malware, but we...

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Small businesses targeted by highly localized Ursnif campaign

In social engineering attacks, is less really more? A new malware campaign puts that to the test by targeting home users and small businesses in specific US cities. This was a focused, highly localized attack that aimed to steal sensitive info from just under 200 targets. Macro-laced documents masqueraded as statements from legitimate businesses. The...

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Machine learning vs. social engineering

Machine learning is a key driver in the constant evolution of security technologies at Microsoft. Machine learning allows Microsoft 365 to scale next-gen protection capabilities and enhance cloud-based, real-time blocking of new and unknown threats. Just in the last few months, machine learning has helped us to protect hundreds of thousands of customers against ransomware,...

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Office 2013 can now block macros to help prevent infection

Office 365 client applications now integrate with AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. This is part of our continued efforts to tackle entire classes of threats. Learn more: Office VBA + AMSI: Parting the veil on malicious macros In response to...

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Where’s the Macro? Malware authors are now using OLE embedding to deliver malicious files

Office 365 client applications now integrate with AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. This is part of our continued efforts to tackle entire classes of threats. Learn more: Office VBA + AMSI: Parting the veil on malicious macros Recently, we’ve seen...

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Malicious macro using a sneaky new trick

  Office 365 client applications now integrate with AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. This is part of our continued efforts to tackle entire classes of threats. Learn more: Office VBA + AMSI: Parting the veil on malicious macros We recently...

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New feature in Office 2016 can block macros and help prevent infection

Office 365 client applications now integrate with AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. This is part of our continued efforts to tackle entire classes of threats. Learn more: Office VBA + AMSI: Parting the veil on malicious macros Macro-based malware is...

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Before you enable those macros…

Office 365 client applications now integrate with AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. This is part of our continued efforts to tackle entire classes of threats. Learn more: Office VBA + AMSI: Parting the veil on malicious macros The Microsoft Malware...

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