... viruses can spread when documents are shared or as email attachments. When a document or email is opened, the malicious virus is executed without the user's knowledge. Document macros infect ... System Administration - SANS GIAC © 2000, 2001Macro Virus• Macro viruses– Targets are data files e.g. * .doc – Written in ‘macro languages’– e.g. Melissa, ILOVEYOU, Resume macro viruses– See ... example that is very common. This malicious macro travels in the This Document module of Word 97, which is present in all documents.It executes on any language version of Word even if SR-1, which...