Threat Description

Imposter.E

Details

Aliases:Imposter
Category: Malware
Type:
Platform: W32

Summary



For more information of Word macro viruses, see the description of Concept.

WM/Imposter.A is a common Word macro virus, which is similar to DMV and Concept viruses.



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 may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



When it first infects a system, it displays a dialog box with text 'DMV'.

Imposter.A contains a comment which reads:

just to prove another point

Imposter.A only replicates.


Variant:Imposter.E(Wormy-1, PC-Format)

Origin:Greece

Unlike Imposter.A, this variant is not very similar to DMV or Concept viruses.

When the virus infects the system for a first time and the user exits Word, it displays the following message in the status bar:

 WORMY-1 by NAENBGOURSG

After that Imposter.E infects every document when they are saved. It also re-infects files that have been infected already.

Virus also contains this text within its code:

 by NAENBGOURSG
SO.HT.AI.KS
231076-GREECE
Thanks to NEURO
VRD 19-4-1997
VRP A.U.A

Otherwise the virus just spreads.





Technical Details: Mikko Hypponen and Katrin Tocheva, F-Secure Ltd


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