McAfee > Theat Center > Virus Detail Page

Overview

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Aliases

• VBS.Laske@mm (NAV)

Characteristics

On executing the infected script, the virus will create the file c:\LASKELMAT.HTML .  This file contains the infected script and is detected as VBS/Lasku.  The virus attempts to propagate through Outlook, but due to error in code no emails will be sent. The following details would have been contained in the email:

• Subject : Kysymys
• Body : Miksi lähetät tämä laskelmat.html minulle. Haluatko myydä ne tiedot?
• Attachment : C:\LASKELMAT.HTML

The virus will then attempt to delete all files and folders in A:,C:,D:,E:,F:,G:,H:, I:, J:,K:,L:,M:,N:,O:,P: using the DELTREE command.  The following message will be displayed:

Symptoms

The presence of the file C:\LASKELMAT.HTML.  The above message displayed.

Method of Infection

Executing the infected script.

Removal

Use current engine and DAT files for detection and removal.

Using File Filtering with WebShield SMTP for WindowsNT(not applicable for Solaris):
Within the Configuration console select content filtering.
Select Add.
Add a Description for the content filter rule such as VBSBlock.
Select Filter on Attachment File name.
Filter on .vbs
Select OK.

Additional Windows ME/XP removal considerations

* Office2000 Updates

* scriptlet.typelib/Eyedog vulnerability patch

* Outlook as an email attachment security update

* Exchange 5.5 post SP3 Information Store Patch 5.5.2652.42 - this patch corrects detection issues with GroupShield

For a list of attachments blocked by the Outlook patch and a general FAQ, visit this link.
Additionally, Network Administrators can configure this update using an available tool - visit this link for more information.

Variants

Variants

N/A

All Information

Overview -

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Aliases

• VBS.Laske@mm (NAV)

Characteristics

Characteristics -

On executing the infected script, the virus will create the file c:\LASKELMAT.HTML .  This file contains the infected script and is detected as VBS/Lasku.  The virus attempts to propagate through Outlook, but due to error in code no emails will be sent. The following details would have been contained in the email:

• Subject : Kysymys
• Body : Miksi lähetät tämä laskelmat.html minulle. Haluatko myydä ne tiedot?
• Attachment : C:\LASKELMAT.HTML

The virus will then attempt to delete all files and folders in A:,C:,D:,E:,F:,G:,H:, I:, J:,K:,L:,M:,N:,O:,P: using the DELTREE command.  The following message will be displayed:

Symptoms

Symptoms -

The presence of the file C:\LASKELMAT.HTML.  The above message displayed.

Method of Infection

Method of Infection -

Executing the infected script.

Removal -

Removal -

Use current engine and DAT files for detection and removal.

Using File Filtering with WebShield SMTP for WindowsNT(not applicable for Solaris):
Within the Configuration console select content filtering.
Select Add.
Add a Description for the content filter rule such as VBSBlock.
Select Filter on Attachment File name.
Filter on .vbs
Select OK.

Additional Windows ME/XP removal considerations

* Office2000 Updates

* scriptlet.typelib/Eyedog vulnerability patch

* Outlook as an email attachment security update

* Exchange 5.5 post SP3 Information Store Patch 5.5.2652.42 - this patch corrects detection issues with GroupShield

For a list of attachments blocked by the Outlook patch and a general FAQ, visit this link.
Additionally, Network Administrators can configure this update using an available tool - visit this link for more information.

Variants

Variants -

N/A