Threat description




Trojan:W97M/MaliciousMacro identifies a macro program that has been embedded in a specially-crafted Microsoft Word document. If the user opens the Word file, the macro is automatically run and its payload is executed.


Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details

Specially-crafted Word documents carrying embedded malicious macro programs are typically distributed as attachments to spam e-mail messages.

In cases of targeted phishing attacks (also known as spear phishing), the e-mail messages are deliberately tailored for a specific organization or user, to increase the chances that the user will accept the attached document as authentic and open it, thereby unintentionally infecting themselves.

The malicious macro code is often designed to automatically run when the Word document is opened. In some cases, the user may be shown a notification message asking them to "allow a macro to run". The user must do so before the macro code can perform its harmful actions.

The actions the malicious macro can take are varied, but usually involve contacting a remote command and control (C&C) server and downloading and/or installing additional files onto the machine.

Submit a Sample

Suspect a file or URL was wrongly detected? Send it to our Labs for further analysis

Submit a Sample

Scan & Clean Your PC

F-Secure Online Scanner will scan and clean your PC in just a few minutes for free

More Info