Microsoft Office applications use macros to automate routine tasks. However, macros can contain malicious code that can be used to exploit vulnerable systems. Recently, there has been a resurgence of malware that is spread via macros. Individuals and organizations should proactively secure systems against macro-based malware.
Users and administrators are encouraged to review CERT’s article on the resurgence of macro exploitation and apply recommendations outlined in CERT Australia’s report on macro security.