WORM_SDBOT.BBG

Malware type: Worm

Aliases: Backdoor.Win32.Rbot.gen (Kaspersky), W32/Sdbot.worm.gen.g (McAfee), W32.Spybot.Worm (Symantec), Worm/SdBot.111616.18 (Avira), W32/Rbot-Gen (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 takes advantage of the following Windows vulnerabilities:

  • IIS5/WEBDAV Buffer Overflow vulnerability
  • Remote Procedure Call (RPC) Distributed Component Object Model (DCOM) vulnerability
  • Windows LSASS vulnerability
  • Buffer Overflow in SQL Server 2000 vulnerability

For more information about these Windows vulnerabilities, please refer to the following Microsoft Web pages:

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

This worm has backdoor capabilities. It executes commands sent in via Internet Relay Chat (IRC) and can be used to launch a Denial of Service (DoS) attack against specified target sites.

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: Dec. 23, 2004 2:50:30 PM GMT -0800
Description updated: Dec. 23, 2004 3:06:44 PM GMT -0800


TECHNICAL DETAILS


Size of malware: 107,008 Bytes

Initial samples received on: Dec 23, 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 MPUPDATA.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
Windows Media Player = "mpupdata.exe"

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
CurrentVersion\RunServices
Windows Media Player = "mpupdata.exe"

HKEY_CURRENT_USER\Software\Microsoft\OLE
Windows Media Player = "mpupdata.exe"

Network Propagation and Exploits

This worm takes advantage of the Remote Procedure Call (RPC) Distributed Component Object Model (DCOM) vulnerability, which allows an attacker to gain full access and execute any code on a target machine.

Read more on this vulnerability from the following page:

This worm looks for vulnerable Windows XP machines on the network by scanning for random TCP/IP addresses on port 135.

It also exploits the Buffer Overflow in SQL Server 2000 vulnerability.

More information on this vulnerability is available from the following Microsoft page:

It also exploits the IIS5/WEBDAV buffer overrun, which affects Windows NT-based systems and allows the execution of arbitrary codes. The following link offers more information from Microsoft about this vulnerability:

This worm also exploits the Windows LSASS vulnerability, which is a buffer overrun that allows remote code execution and enables an attacker to gain full control of affected systems. This vulnerability is discussed in detail in the following pages:

This worm copies and executes itself on vulnerable systems.

It searches for the following default network shares:

  • ADMIN$\system32
  • C$\Windows\system32
  • D$\WINNT\system32
  • IPC$

It uses the default shares to determine access and copies itself to the shared folders if it has full access rights. However, if these shared folders have restricted access rights, it attempts to brute-force its way into the systems by logging on using the following user names and passwords:

User names:

Passwords:

  • 12346
  • 123467
  • 1234678
  • 12346789
  • 123467890
  • accounting
  • accounts
  • admin
  • administrator
  • changeme
  • default
  • guest
  • homeuser
  • internet
  • oemuser
  • outlook
  • pass1234
  • pass1234
  • passwd
  • password
  • password1
  • qwerty
  • server
  • system
  • user1
  • win2000
  • win2k
  • win98
  • windows
  • winnt
  • winxp

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:

  • Capture pictures and video clips
  • Change BOT ID
  • Disconnect the bot from IRC
  • Display connection type, local IP address and other net information
  • Display netinfo
  • Display the following system information:
    • CPU speed
    • Amount of Memory
    • Windows platform, build version and product ID
    • Malware uptime
    • User name
  • Display driver list
  • Download from HTTP and FTP URL
  • Execute a file
  • Generate a random nickname
  • Get screenshots
  • Issue PING attack on to a target computer
  • Let the bot perform mode change
  • List all running process
  • Log in and log out the user
  • Make a bot join a channel
  • Open a command shell
  • Open files
  • Perform different kinds of DDoS attacks
  • Rename a file
  • Retrieve and clear log files
  • Send a message to the IRC server
  • Stop and start a thread
  • Terminate the bot
  • Update malware from HTTP and FTP URL

Information Theft

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

  • Battlefield 1942
  • Battlefield 1942 (Road To Rome)
  • Battlefield 1942 (Secret Weapons of WWII)
  • Battlefield Vietnam
  • Black and White
  • Chrome
  • Command and Conquer: Generals
  • Command and Conquer: Generals (Zero Hour)
  • Command and Conquer: Red Alert
  • Command and Conquer: Red Alert 2
  • Command and Conquer: Tiberian Sun
  • Counter-Strike (Retail)
  • FIFA 2002
  • FIFA 2003
  • Freedom Force
  • Global Operations
  • Gunman Chronicles
  • Half-Life
  • Hidden & Dangerous 2
  • IGI 2: Covert Strike
  • Industry Giant 2
  • James Bond 007: Nightfire
  • Legends of Might and Magic
  • 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
  • Neverwinter Nights (Hordes of the Underdark)
  • Neverwinter Nights (Shadows of Undrentide)
  • NHL 2002
  • NHL 2003
  • NOX
  • Rainbow Six III RavenShield
  • Shogun: Total War: Warlord Edition
  • Soldier of Fortune II - Double Helix
  • Soldiers Of Anarchy
  • The Gladiators
  • Unreal Tournament 2003
  • Unreal Tournament 2004



Analysis by: Jake Lingan


SOLUTION


Minimum scan engine version needed: 6.810

Pattern file needed: 2.315.00

Pattern release date: Dec 23, 2004


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.BBG.

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.

Terminating the Malware Program

This procedure terminates the running malware process. You will need the name(s) of the file(s) detected earlier.

  1. Open Windows Task Manager.
    � On Windows 95, 98, and ME, press
    CTRL%20ALT%20DELETE
    � On Windows NT, 2000, and XP, press
    CTRL%20SHIFT%20ESC, then click the Processes tab.
  2. In the list of running programs*, locate the malware file(s) detected earlier.
  3. Select one of the detected files, then press either the End Task or the End Process button, depending on the version of Windows on your system.
  4. Do the same for all detected malware files in the list of running processes.
  5. To check if the malware process has been terminated, close Task Manager, and then open it again.
  6. Close Task Manager.

*NOTE: On systems running Windows 95, 98, and ME, Windows Task Manager may not show certain processes. You can use a third party process viewer such as Process Explorer to terminate the malware process. Otherwise, continue with the next procedure, noting additional instructions.

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:
    Windows Media Player = "mpupdata.exe"
  4. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>RunServices
  5. In the right panel, locate and delete the entry:
    Windows Media Player = "mpupdata.exe"
  6. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>OLE>
  7. In the right panel, locate and delete the entry:
    Windows Media Player = "mpupdata.exe"
  8. Close Registry Editor.

NOTE: If you were not able to terminate the malware process as described in the previous procedure, restart your system.

Additional 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 sets.

Running Trend Micro Antivirus

Scan your system with Trend Micro antivirus and delete all files detected as WORM_SDBOT.BBG. 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.

Applying Patches

Download the latest patches. Information on the vulnerabilities exploited by this malware and corresponding patches can be found at the following links:

Microsoft Security Bulletin MS03-026
Microsoft Security Bulletin MS03-007
Microsoft Security Bulletin MS02-061
Microsoft Security Bulletin MS04-011


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