There is no virus by this name. However, we occasionally get queries about this file.


Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

SUHDLOG.DAT is created to the root directory of drive C: during the setup of Windows. It contains backup copies of the original boot sectors of the machine and the system files. This file is not used by Windows unless you uninstall it - in which case the boot sectors and system files are restored.If your machine was already infected by a boot virus before installing Windows, the infected boot sectors will be copied to SUHDLOG.DAT. After this, F-Secure anti-virus products will find a dropper infection from this file. This is pretty harmless, and the best way to correct this problem is to make an extra copy of the SUHDLOG.DAT to a floppy disk which is stored in a safe place (an expert could fix the file manually if you need it for uninstall purposes) and just delete the SUHDLOG.DAT file from your hard drive.On a related note, F-Secure Anti-Virus had a false alarm of the Lamerman virus in this file on June 15th, 2001.

Date Created: -

Date Last Modified: -