Since anti-viruses usually do not track macros, considering them benign by default, and the macros execution environment in MS Office has many vulnerabilities, macro viruses can easily skip the restriction and act in a live system. In addition, it is highly probable that the proactive protection of anti-virus software may ignore macros, considering them useful. Although macros are disabled by default in Windows, hackers may trick users into turning it on, allowing macros to run. To prevent the macro attack, you should manually scan the suspected file.