Content

W32/Autorun.worm.gen

Type
Virus
SubType
Generic Worm
Discovery Date
04/18/2008
Length
Varies
Minimum DAT
5277 (04/18/2008)
Updated DAT
6545 (11/29/2011)
Minimum Engine
5.1.00
Description Added
04/18/2008
Description Modified
07/14/2008 10:22 PM (PT)
Risk Assessment
Corporate User
Low
Home User
Low

Tab Navigation

Characteristics

This detection is for a worm.
It attempts to spread to removable drives by creating an autorun.inf file, which will run the worm automatically, if a systems which use the removable drive are set to Autorun.

The following files are written to root of writeable volumes:

  • AdobeRd9.0.exe
  • autorun.inf
  • scene.exe

The following files are also written to the infected system:

  • %WinDir%\services.exe
    (where %WinDir% is the default Windows directory, for example C:\WINNT, C:\WINDOWS etc.)

The following registry keys are created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnabled: "FALSE"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Client: "%WinDir%\services.exe"
  • HKEY_USERS\S-1-5-21-746137067-299502267-1547161642-1003\Software\Microsoft\Windows NT\CurrentVersion\Windows\Run: "%WinDir%\services.exe"


The following files are written to root of writeable volumes:

  • AdobeRd9.0.exe
  • autorun.inf
  • scene.exe

Symptoms

Existence of mentioned files and registry keys

Method of Infection

This worm may be spread by its intented method of infected removable drives.

Alternatively this may be installed by visiting a malicious web page (either by clicking on a link, or by the website hosting a scripted exploit which installs the worm onto the user's system with no user interaction.

Removal

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

Variants

Variants

    N/A

All Information

Overview -

This detection is for a worm that attempts to copy itself to the root of any accessible disk volumes.
Additionally it attempts to place an Autorun.inf file on the root of the volume so that it is executed the next time the volume is mounted.

Aliases

  • Worm.Win32.AutoRun.dve (Kaspersky)
  • Worm/Autorun.dve (AntiVir)

Characteristics

Characteristics -

This detection is for a worm.
It attempts to spread to removable drives by creating an autorun.inf file, which will run the worm automatically, if a systems which use the removable drive are set to Autorun.

The following files are written to root of writeable volumes:

  • AdobeRd9.0.exe
  • autorun.inf
  • scene.exe

The following files are also written to the infected system:

  • %WinDir%\services.exe
    (where %WinDir% is the default Windows directory, for example C:\WINNT, C:\WINDOWS etc.)

The following registry keys are created:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnabled: "FALSE"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Client: "%WinDir%\services.exe"
  • HKEY_USERS\S-1-5-21-746137067-299502267-1547161642-1003\Software\Microsoft\Windows NT\CurrentVersion\Windows\Run: "%WinDir%\services.exe"


The following files are written to root of writeable volumes:

  • AdobeRd9.0.exe
  • autorun.inf
  • scene.exe

Symptoms

Symptoms -

Existence of mentioned files and registry keys

Method of Infection

Method of Infection -

This worm may be spread by its intented method of infected removable drives.

Alternatively this may be installed by visiting a malicious web page (either by clicking on a link, or by the website hosting a scripted exploit which installs the worm onto the user's system with no user interaction.

Removal -

Removal -

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

Variants

Variants -

    N/A