Classification

Category: Malware

Type: -

Aliases: Pesan

Summary


WordMacro/Pesan.A is a simple Word Macro virus.

It activates every five minutes and displays one of these messages:

MicroSoft Warning!!!
 You are about Formatting Hardisk, Are you sure?
 FORMAT WARNING !!!
 You have just activate the format.exe trigger,
 all command will FORMAT your hardisk
 SYSTEM DAMAGE WARNING !!!
 System detected 'Bandung.d_t' VIRUS, all system will be
 Damage Permanently !!! May God Have Mercy On you ....!!!

Otherwise Pesan.A only spreads.

Removal


Automatic action

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

Knowledge Base

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About the product

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Technical Details



Variant:Pesan.B

This is a later variant with destructive activation routine. The virus does not display any messages, but it attempts to delete the following files:

c:\dos\chkdsk.exe
 c:\dos\format.com
 c:\dos\defrag.exe
 c:\dos\scandisk.exe
 c:\msdos\chkdsk.exe
 c:\msdos\format.com
 c:\msdos\defrag.exe
 c:\msdos\scandisk.exe

After this Pesan.B creates a BAT file with the same name. When this batch file is executed, it will delete all files from drive C: with the deltree command.

The activation routine failes if there is no c:\dos or c:\msdos directory (most Windows 95 and NT systems do not have such directories).