![]() If you have the targeted program on your computer, the virus can infect it. ![]() If you open a document infected with a Microsoft Word virus, and if macros are enabled on your computer, Word will execute the malicious macro just as it would any other, but with potentially harmful consequences.īecause they work within programs, not operating systems, macros viruses can affect both PCs and Macs. How does a macro virus work?Ī macro virus works by using the programming language of a macro to fool a program into executing it. Along with ransomware, spyware, and other types of malware, macro viruses - especially MS Office viruses - can severely threaten you or your organization. When you open a file infected with a macro virus, the software executes the malicious macro as though it were a normal one. In Excel, people use macros to perform calculations and autofill spreadsheets.Ī macro virus takes advantage of this automated system by disguising itself as a normal macro. A simple Microsoft Word macro might insert a table. By automatically performing a given procedure, macros simplify complex processes and make things more convenient.
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