Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

VBS.Injust@mm

VBS.Injust@mm

Discovered:
18 November 2002
Updated:
13 February 2007
Also Known As:
I-Worm.Injust [KAV], VBS/Reccos.A@mm [F-Prot]
Systems Affected:
Microsoft IIS, Windows

VBS.Injust@mm is a mass-mailing worm that is written in the Visual Basic scripting language. The worm can infect .vbs and .vbe files. It can also change registry keys so that all of drives C and D are accessible by the Internet Information Server (IIS) Web server.

The email has the following characteristics.
Subject: One of these:
  • Soccer Photo
  • Euro-Soccer Pix
  • Kids playing soccer
  • Homeschool soccer pic
  • Nude soccer pic
  • Playmates playing soccer!
  • Hot co-ed soccer pic!
  • Gooooooal!
  • Soccer riot picture
  • Soccer game picture
  • World Cup photo

Message body: Look at this amazing soccer picture!

Attachment: Soccer.jpg.vbs

Antivirus Protection Dates

  • Initial Rapid Release version 19 November 2002
  • Latest Rapid Release version 28 September 2010 revision 054
  • Initial Daily Certified version 19 November 2002
  • Latest Daily Certified version 28 September 2010 revision 036
  • Initial Weekly Certified release date 20 November 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When VBS.Injust@mm runs, it does the following:

It attempts to overwrite the %windir%\hosts file to block you from accessing the following Web sites:
  • www.antivirus.com
  • www.sophos.com
  • www.norton.com
  • www.mcafee.com
  • www.pandasoftware.com
  • www.eu.com
  • www.eu.org
  • www.islam.com
  • www.teamsters.com
  • www.martinlutherking.com
  • www.mormon.com
  • www.democrats.com
  • www.un.org
  • www.un.com
  • www.plannedparenthood.com
  • www.plannedparenthood.org
  • www.whitehouse.org
  • www.whitehouse.com
  • www.hrichina.org
  • www.godhatesamerica.com
  • www.fuckgod.com
  • www.blackplague.org

NOTE: %windir% is a variable. The worm locates the Windows installation folder (by default this is C:\Windows or C:\Winnt) and looks for the Hosts file in that location.

If the file C:\Program Files\Norton Antivirus\Exclude.dat exists, the worm attempts to overwrite the file.

Next, the worm overwrites the following files:
  • Index.asp
  • Index.html
  • Index.html
  • Default.asp
  • Default.htm
  • Default.html

if they exist in these folders:
  • C:\Inetpub\wwwroot
  • D:\Inetpub\wwwroot\

It overwrites the files with this text:

<html>Homeschool Soccer Worm</html>

The worm adds the following values to the Windows registry:
  • It adds the value

    /C c:\,,205

    to the registry key

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W3SVC\Parameters\Virtual Roots
  • and the value

    /D d:\,,205

    to the registry key

    KEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W3SVC\Parameters\Virtual Roots

This causes all of drives C and D to be accessible by the IIS Web server.

The worm creates or overwrites one or more script files that are used by mIRC and PIRCH. This causes the worm to be sent to other IRC users.

It creates or overwrites C:\Program Files\Common Files\Microsoft Shared\Stationery\Blank.htm. It then adds the value

C:\Program Files\Common Files\Microsoft Shared\Stationery\blank.htm

to these registry keys:

HKEY_CURRENT_USER\Identities\<removed>\Software\Microsoft\Outlook Express\5.0\Mail\Compose Use Stationery
HKEY_CURRENT_USER\Identities\<removed>\Software\Microsoft\Outlook Express\5.0\Mail\Stationery Name
HKEY_CURRENT_USER\Identities\<removed>\Software\Microsoft\Outlook Express\5.0\Mail\Wide Stationery Name

This causes the worm to run every time that you compose new mail in Microsoft Outlook Express.

The worm modifies several values in the Windows registry. These modifications change the .vbs file icon, prevent Windows from showing file extensions, and cause the worm to run each time that a .vbs file is executed.

The worm sets the Microsoft Internet Explorer home page to www.hslda.org and sets the computer name to Soccer.

The worm copies itself to the %windir% folder.

It then adds the values

HomeschoolSoccer1
HomeschoolSoccer2

to the registry key

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

so that the worm starts each time that you start Windows.

The worm use MAPI to mass-mail itself to all contacts that exist in the Microsoft Outlook address book. The email message is constructed as follows:

Subject: One of these:
  • Soccer Photo
  • Euro-Soccer Pix
  • Kids playing soccer
  • Homeschool soccer pic
  • Nude soccer pic
  • Playmates playing soccer!
  • Hot co-ed soccer pic!
  • Gooooooal!
  • Soccer riot picture
  • Soccer game picture
  • World Cup photo

Message body: Look at this amazing soccer picture!

Attachment: Soccer.jpg.vbs

The worm has a payload which is executed on the September 7 of every year. It deletes all files that exist in all folders. It then displays this message in an infinite loop:

Homeschool Soccer T0day!
Its Co-ed Soccer too!
My Team Rulz!!!!!

You hard drive is trashed
Have a nice day.
Wish my team luck!

It creates a link named Hslda.url in the %windir%\Favorites folder.

It searches the current folder and moves all .jpg files to the%system% folder. Next, it copies itself in the place of the original .jpg file as <original file name>.jpg.vbs.

Finally, it infects all .vbs files and .vbe files as they are executed.

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

  • Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
  • Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
  • Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
  • Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
  • Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
  • Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
  • If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
  • Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
  • Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
  • Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
  • Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
  • If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
  • For further information on the terms used in this document, please refer to the Security Response glossary.

NOTE: These instructions are for all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.
  1. Update the virus definitions.
  2. Run a full system scan, and delete all files that are detected as VBS.Injust@mm
  3. Reverse the changes that the worm made to the registry.
For details on how to do this, read the following instructions.

To update the virus definitions:
All virus definitions receive full quality assurance testing by Symantec Security Response before being posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Run LiveUpdate, which is the easiest way to obtain virus definitions. These virus definitions are posted to the LiveUpdate servers once each week (usually Wednesdays) unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, look at the Virus Definitions (LiveUpdate) line at the top of this write-up.
  • Download the definitions using the Intelligent Updater. Intelligent Updater virus definitions are posted on U.S. business days (Monday through Friday). They must be downloaded from the Symantec Security Response Web site and installed manually. To determine whether definitions for this threat are available by the Intelligent Updater, look at the Virus Definitions (Intelligent Updater) line at the top of this write-up.

    Intelligent Updater virus definitions are available here. For detailed instructions on how to download and install the Intelligent Updater virus definitions from the Symantec Security Response Web site, click here.

To scan for and delete the infected files:
  1. Start your Symantec antivirus program, and make sure that it is configured to scan all files.
  2. Run a full system scan.
  3. If any files are detected as infected with VBS.Injust@mm, click Delete.

To edit the registry:

CAUTION : Symantec strongly recommends that you back up the registry before you make any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify only the keys that are specified. Read the document How to make a backup of the Windows registry for instructions.
  1. Click Start, and click Run. The Run dialog box appears.
  2. Type regedit and then click OK. The Registry Editor opens.
  3. Navigate to the key

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  4. In the right pane, delete the values

    HomeschoolSoccer1
    HomeschoolSoccer2
  5. Delete the values

    Compose Use Stationery
    Stationery Name
    Wide Stationery Name

    from the registry key

    HKEY_CURRENT_USER\Identities\<removed>\Software\Microsoft\Outlook Express\5.0\Mail
  6. Delete the registry keys

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W3SVC\Parameters\Virtual Roots\/C
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W3SVC\Parameters\Virtual Roots\/D
    HKEY_CLASSES_ROOT\VBSFile\NeverShowExt
  7. Modify the (Default) value of

    HKEY_CLASSES_ROOT\VBSFile

    to

    VBScript Script File
  8. If you use Windows 95, 98, or Me, modify the (Default) value of

    HKEY_CLASSES_ROOT\VBSFile\DefaultIcon

    to

    %windir%\WScript.exe,2
  9. If use Windows 95, 98, or Me, modify the (Default) value of

    HKEY_CLASSES_ROOT\VBSfile\Shell\Open\Command

    to

    %windir%\WScript.exe "%1" %*
  10. If use Windows NT, 2000,or XP, modify the (Default) value of

    HKEY_CLASSES_ROOT\VBSFile\DefaultIcon

    to

    %SystemRoot%\System32\WScript.exe,2
  11. If use Windows NT, 2000, or XP, modify the (Default) value of

    HKEY_CLASSES_ROOT\VBSfile\Shell\Open\Command

    to

    %SystemRoot%\System32\WScript.exe "%1" %*


Writeup By: Robert X Wang