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Virus Profile: VBS/Inself

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 11/28/2001
Date Added: 5/23/2003
Origin: Unknown
Length: Varies
Type: Virus
Subtype: VbScript
DAT Required: 4173
Removal Instructions
   
 
 
   

Description

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.

Indication of Infection

Viral code appended at end of .vbs files.

Methods of Infection

Executing the infected .vbs file will infect all .vbs files found in the current directory.

Aliases

VBS.Beer
   

Virus Characteristics

This threat is detected as VBS/Inself. VBS/Inself is semi encrypted appending virus. It appends its code to .vbs files found in the current directory. On the 9th day of any month, the virus copies itself to the windows TEMP folder. VBS/Inself does not contain destructive payload.

   
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

AVERT Recommended Updates:

* 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.

   

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