Classification

Category :

Malware

Type :

-

Aliases :

Angus

Summary

This is a complex Word macro virus. It activates on the 23rd of October. At this date it encrypts accessed Word documents with a random password.

For background information on Word macro viruses, see the description of the WordMacro/Concept virus.

Removal

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.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

This is a complex Word macro virus. It activates on the 23rd of October. At this date it encrypts accessed Word documents with a random password.

It also might insert the following texts to documents:

NAENBGOURSG 




Hello from GREECE.

On 24th of October the virus creates a file called PCGURU4.BAT to the current directory. This file contains the following lines:

 @echo off


Rem PcGuru4 virus by NAENBGOURSG


Rem Golden Version 4.3


type PcGuru4.bat >> PcGuru4.bat


The virus also contains the following text:


'by NAENBGOURSG


'SO.HT.AI.KS


'231076 -- GREECE


'VRD 23-4-1997


'VRP A.U.A