WORM_SDBOT.TT

Malware type: Worm

Aliases: Net-Worm.Win32.Kolab.ja (Kaspersky), W32.IRCBot (Symantec), TR/Crypt.XPACK.Gen (Avira), Mal/EncPk-AF (Sophos),

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 95, 98, ME, NT, 2000, XP

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

High

Distribution potential:

High

Description: 

This worm attempts to log on to systems using a list of user names and passwords. It drops a copy of itself into accessible machines.

It has backdoor capabilities. It executes commands sent in via Internet Relay Chat (IRC).

It steals the CD keys of popular game applications.

This worm runs on Windows 95, 98, ME, NT, 2000, and XP.

For additional information about this threat, see:

Description created: Sep. 7, 2004 10:01:06 AM GMT -0800
Description updated: Sep. 7, 2004 10:20:02 AM GMT -0800


TECHNICAL DETAILS


Size of malware: 98,365 Bytes

Initial samples received on: Sep 7, 2004

Payload 1: Compromises system security

Trigger condition 1: Upon execution

Payload 2: Steals CD keys

Trigger condition 1: Upon execution

Details:
Installation and Autostart Technique

Upon execution, this worm drops a copy of itself as VIDEOSD32.EXE in the Windows system folder.

It then adds the following registry entries, which allow it to run automatically at every system startup:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
CurrentVersion\Run
Win32 Configuration = "videosd32.exe"

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
CurrentVersion\RunOnce
Win32 Configuration = "videosd32.exe"

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
CurrentVersion\RunServices
Win32 Configuration = "videosd32.exe"

HKEY_CURRENT_USER\Software\Microsoft\Windows
CurrentVersion\Run
Win32 Configuration = "videosd32.exe"

HKEY_CURRENT_USER\Software\Microsoft\Windows
CurrentVersion\RunOnce
Win32 Configuration = "videosd32.exe"

This worm sets itself as a service by creating the following registry subkeys:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Enum\Root\LEGACY_PROTECTOR

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\Protector

It uses the service name and the service display name protector.

Network Propagation

This worm spreads via network shares. It uses NetBEUI functions to get available lists of user names and passwords. It then searches for the default shared folders, where it drops a copy of itself.

All successfully dropped copies are remotely executed as a service.

Backdoor Capabilities

This worm has backdoor capabilities. It connects to an Internet Relay Chat (IRC) server and automatically joins a specific channel, where it listens for commands coming from a remote user. It executes commands locally on the affected machines, providing remote users virtual control over affected systems.

It acts as a bot that responds to private messages with specific keyword triggers. The following are the corresponding actions it performs:

Information Theft

This worm steals the CD keys of the following popular games:

  • Battlefield 1942
  • Battlefield 1942: Secret Weapons of WWII
  • Battlefield 1942: The Road To Rome
  • Battlefield 1942: Vietnam
  • Black and White
  • Command and Conquer: Generals
  • Command and Conquer: Generals: Zero Hour
  • Command and Conquer: Red Alert2
  • Command and Conquer: Tiberian Sun
  • Counter-Strike
  • FIFA 2002
  • FIFA 2003
  • Freedom Force
  • Global Operations
  • Gunman Chronicles
  • Half-Life
  • Hidden and Dangerous 2
  • IGI2: Covert Strike
  • Industry Giant 2
  • James Bond 007: Nightfire
  • Medal of Honor: Allied Assault
  • Medal of Honor: Allied Assault: Breakthrough
  • Medal of Honor: Allied Assault: Spearhead
  • Nascar Racing 2002
  • Nascar Racing 2003
  • Need For Speed: Hot Pursuit 2
  • Need For Speed: Underground
  • Neverwinter Nights
  • NHL 2002
  • NHL 2003
  • Ravenshield:
  • Shogun: Total War: Warlord Edition
  • Soldier Of Fortune 2
  • Soldiers Of Anarchy
  • The Gladiators
  • Unreal Tournament 2003
  • Unreal Tournament 2004

It also obtains the user name of various Messenger applications.

Other Details

This worm is written and compiled in Visual C%20%20, a high-level programming language.




Analysis by: Ian Esguerra

Revision History:

First pattern file version: 4.944.10
First pattern file release date: Jan 14, 2008

SOLUTION


Minimum scan engine version needed: 6.810

Pattern file needed: 5.109.00

Pattern release date: Feb 17, 2008


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

Identifying the Malware Program

To remove this malware, first identify the malware program.

  1. Scan your system with your Trend Micro antivirus product.
  2. NOTE all files detected as WORM_SDBOT.TT.

Trend Micro customers need to download the latest pattern file before scanning their system. Other users can use Housecall, Trend Micro�s free online virus scanner.

Restarting in Safe Mode

� On Windows 95

  1. Restart your computer.
  2. Press F8 at the Starting Windows 95 message.
  3. Choose Safe Mode from the Windows 95 Startup Menu then press Enter.

� On Windows 98 and ME

  1. Restart your computer.
  2. Press the CTRL key until the startup menu appears.
  3. Choose the Safe Mode option then press Enter.

� On Windows NT (VGA mode)

  1. Click Start>Settings>Control Panel.
  2. Double-click the System icon.
  3. Click the Startup/Shutdown tab.
  4. Set the Show List field to 10 seconds and click OK to save this change.
  5. Shut down and restart your computer.
  6. Select VGA mode from the startup menu.

� On Windows 2000

  1. Restart your computer.
  2. Press the F8 key, when you see the Starting Windows bar at the bottom of the screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

� On Windows XP

  1. Restart your computer.
  2. Press F8 after the Power-On Self Test (POST) is done. If the Windows Advanced Options Menu does not appear, try restarting and then pressing F8 several times after the POST screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

Note: After performing all the solutions for the removal of this malware, please restart your system normally, and run your Trend Micro antivirus product.

Removing Autostart Entries from the Registry

Removing autostart entries from the registry prevents the malware from executing at startup.

  1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
  2. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>Run
  3. In the right panel, locate and delete the entry:
    Win32 Configuration = "videosd32.exe"
  4. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>RunOnce
  5. In the right panel, locate and delete the entry:
    Win32 Configuration = "videosd32.exe"
  6. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>RunServices
  7. In the right panel, locate and delete the entry:
    Win32 Configuration = "videosd32.exe"
  8. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>
    Windows>CurrentVersion>Run
  9. In the right panel, locate and delete the entry:
    Win32 Configuration = "videosd32.exe"
  10. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>
    Windows>CurrentVersion>RunOnce
  11. In the right panel, locate and delete the entry:
    Win32 Configuration = "videosd32.exe"
  12. Close Registry Editor.

Important Windows ME/XP Cleaning Instructions

Users running Windows ME and XP must disable System Restore to allow full scanning of infected systems.

Users running other Windows versions can proceed with the succeeding procedure set(s).

Running Trend Micro Antivirus

Scan your system with Trend Micro antivirus and delete all files detected as WORM_SDBOT.TT. To do this, Trend Micro customers must download the latest pattern file and scan their system. Other users can use HouseCall, Trend Micro�s free online virus scanner.


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