Content

VBS/Qoma@MM

Type
Virus
SubType
VbScript
Discovery Date
02/06/2004
Length
6,568 Bytes
Minimum DAT
4323 (02/11/2004)
Updated DAT
4336 (03/10/2004)
Minimum Engine
5.1.00
Description Added
04/01/2004
Description Modified
04/01/2004 2:56 AM (PT)
Risk Assessment
Corporate User
Low
Home User
Low

Tab Navigation

Characteristics

On executing the infected VBScript, the virus will copy itself as Copy.vbs into the windows SYSTEM directory. Using Outlook, the virus will email itself out to all in the addresslist with the following information :

  • Subject = Heyy..Check this
  • Body = Check this file,this is free sex movie from http://sexy.memek.com
  • Attachments = Copy.vbs

And email recieved may look like below:

The virus will also add the following registry keys:
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoDrives, "67108863" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoClose, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoFind, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    WinOldApp\Disabled, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoDesktop, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoRun, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDiskCpl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\DisableRegistryTools, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoSetTaskbar     , "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoSetFolder", "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispAppearancePage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispBackgroundPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispScrSavPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispSettingsPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetup, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetupIDPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoFileSharingControl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetupSecurityPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoSecCpl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoAdminPage, "1" = "REG_DWORD"
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
    Run "kjhik" = [windows SYSTEM directory]\Copy.vbs

Symptoms

The presence of copy.vbs in the windows SYSTEM directory.  The above registry modifications.

Method of Infection

Executing the infected file.

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

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.

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.

Characteristics

Characteristics -

On executing the infected VBScript, the virus will copy itself as Copy.vbs into the windows SYSTEM directory. Using Outlook, the virus will email itself out to all in the addresslist with the following information :

  • Subject = Heyy..Check this
  • Body = Check this file,this is free sex movie from http://sexy.memek.com
  • Attachments = Copy.vbs

And email recieved may look like below:

The virus will also add the following registry keys:
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoDrives, "67108863" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoClose, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoFind, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    WinOldApp\Disabled, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoDesktop, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoRun, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDiskCpl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\DisableRegistryTools, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoSetTaskbar     , "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Explorer\NoSetFolder", "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispAppearancePage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispBackgroundPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispScrSavPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoDispSettingsPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetup, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetupIDPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoFileSharingControl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    Network\NoNetSetupSecurityPage, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoSecCpl, "1" = "REG_DWORD"
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
    System\NoAdminPage, "1" = "REG_DWORD"
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
    Run "kjhik" = [windows SYSTEM directory]\Copy.vbs

Symptoms

Symptoms -

The presence of copy.vbs in the windows SYSTEM directory.  The above registry modifications.

Method of Infection

Method of Infection -

Executing the infected file.

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

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.

Variants

Variants -

    N/A