A newly discovered unpatched attacking method that exploits a built-in feature of Microsoft Office is currently being used in various widespread malware attack campaigns.
Last week we reported how hackers could leveraging an old Microsoft Office feature called Dynamic Data Exchange (DDE), to perform malicious code execution on the targeted device without requiring Macros enabled or memory corruption.
DDE protocol is one of the several methods that Microsoft uses to allow two running applications to share the same data.
The protocol is being used by thousands of apps, including MS Excel, MS Word, Quattro Pro, and Visual Basic for one-time data transfers and for continuous exchanges for sending updates to one another.
The DDE exploitation technique displays no “security” warnings to victims, except asking them if they want to execute the application specified in the command—although this popup alert could also be eliminated “with proper syntax modification.”