Threat Description

PTH

Details

Aliases:PTH
Category:Malware
Type:Virus
Platform:X97M

Summary



XM/PTH is a Excel macro virus. Some variants of it contains a destructive payload.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details




Variant:PTH.A

When an infected workbook has been opened, XM/PTH.A creates an infected workbook to Excel's starup directory, "PERSONAL.XLS".

After this has been done, the virus infects all workbooks that are opened.

The virus activates its payload if the infected workbook or Excel itself has been opened after 5:00 pm, and it has been open for at least 5 minutes.

At this time the virus closes Excel, unless the day of the month is 13th when it attempts to destroy files with the following extensions from the directory where the workbook has been opened:

  *.XLS
 *.TXT

Variant:PTH.E

XM/PTH.E is very similar to XM/PTH.A. However, the payload has been removed.

XM/PTH.E has been detected since October 19th, 1999. X97M/PTH.E has been detected since October 26th, 1999.





Technical Details: Sami Rautiainen, F-Secure


SUBMIT A SAMPLE

Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Scan & clean your PC

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

Learn More