Microsoft Publisher Files Delivering Malware
By Xavier Mertens | August 24, 2018
Attackers are always searching for new ways to deliver malicious content to their victims. A few days ago, Microsoft Publisher malicious files were spotted by security researchers[1]. Publisher is a low-level desktop publishing application offered by Microsoft in its Office suite. They are linked to the “.pub” extension. If not very popular these days, Publisher is still installed on many computers because the default setup of Office 365 proposes it by default:
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Being part of Office 365, it has all the features like Word, Excel, etc (Read: it can execute VBA macros). One of our readers shared a malicious Publisher document that he received via email. The file contained a simple VBA macro that reads the URL to download the next stage via a VBA Form:
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