WORM_LOVGATE.Q

Malware type: Worm

Aliases: Email-Worm.Win32.LovGate.q (Kaspersky), W32.Lovgate.Gen@mm (Symantec), Worm/Lovgate.Q.2 (Avira), W32/Lovgate-X (Sophos),

In the wild: Yes

Destructive: No

Language: English

Platform: Windows NT, 2000, XP

Encrypted: Yes

Overall risk rating:

Reported infections:

Damage potential:

High

Distribution potential:

High

Description: 

This memory-resident worm attempts to drop copies of itself using specific file names in the following locations:

  • Shared folders with write access
  • Root folder
  • Windows system folder
  • Windows folder

It also creates a .ZIP copy of itself using certain file names with either ZIP or RAR extensions in the root folder. The content of the .ZIP file, however, uses any of the following extensions:

  • EXE
  • COM
  • PIF
  • SCR

This malware also uses the MAPI to reply to email messages found in a system. The email details are as follows:

Subject: Re: <original email subject>

Message body:

<original message body>
<domain name> auto-reply:

If you can keep your head when all about you
Are losing theirs and blaming it on you;
If you can trust yourself when all men doubt you,
But make allowance for their doubting too;
If you can wait and not be tired by waiting,
Or, being lied about,don't deal in lies,
Or, being hated, don't give way to hating,
And yet don't look too good, nor talk too wise;
... ... more look to the attachment.
> Get your FREE <domain name> now! <

Attachment: (any of the following)

Britney spears nude.exe.txt.exe
Deutsch BloodPatch!.exe
dreamweaver MX (crack).exe
DSL Modem Uncapper.rar.exe
How to Crack all gamez.exe
I am For u.doc.exe
Industry Giant II.exe
joke.pif
Macromedia Flash.scr
Me_nude.AVI.pif
s3msong.MP3.pif
SETUP.EXE
Sex in Office.rm.scr
Shakira.zip.exe
StarWars2 - CloneAttack.rm.scr
the hardcore game-.pif

It is compressed using JDPack then recompressed several times using Aspack.

It runs on Windows NT, 2000, and XP.

For additional information about this threat, see:

Description created: Mar. 21, 2004 2:30:51 PM GMT -0800
Description updated: Apr. 3, 2005 11:36:36 PM GMT -0800


TECHNICAL DETAILS


Size of malware: 114,176 Bytes (.EXE)
53,760 Bytes (.DLL)

Initial samples received on: Mar 21, 2004

Details:

Installation

Upon execution, this memory-resident worm drops the following copies of itself:

  • %Root%\COMMAND.EXE
  • %System%\IEXPLORE.EXE
  • %System%\RAVMOND.exe
  • %Windows%\SYSTRA.EXE

(Note: %Root% is the root folder of the system, which is usually C:\. %System% is the Windows system folder, which is usually C:\Windows\System on Windows 95, 98 and ME, C:\WINNT\System32 on Windows NT and 2000, and C:\Windows\System32 on Windows XP. %Windows% is the default Windows folder, usually C:\Windows or C:\WINNT.)

It then drops the following .DLL components in the Windows system folder:

  • KERNEL66.DLL
  • LMMIB20.DLL
  • MSJDBC11.DLL
  • MSSIGN30.DLL
  • ODBC16.DLL
  • RAVMOND.EXE

Next, it creates a .ZIP copy of itself using any of the following file names in the root folder:

  • BAK
  • BOOK
  • EMAIL
  • IMPORTANT
  • LETTER
  • PASS
  • PASSWORD
  • SETUP
  • WORK

The file can have either of the following extensions:

  • ZIP
  • RAR

The content of the .ZIP file also uses any of the file names from the mentioned list. But it uses any of the following extensions instead:

  • EXE
  • COM
  • PIF
  • SCR

Autostart Techniques

This malware creates the following registry entries so that it executes every time Windows starts:

HKEY_CURRENT_USER\Software\Microsoft\
Windows NT\CurrentVersion\Windows
Run = RAVMOND.exe

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\RunServices
SystemTra = %Windows%\SysTra.EXE

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
Program In Windows = %System%\IEXPLORE.EXE

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
VFW Encoder/Decoder Settings = RUNDLL32.EXE MSSIGN30.DLL ondll_reg

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
Protected Storage = RUNDLL32.EXE MSSIGN30.DLL ondll_reg

It also registers itself as a service by creating the following registry entries:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\Windows Management Protocol v.0 (experimental)

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\_reg

It adds the file AUTORUN.INF, which allows the Auto Play feature of Windows to execute COMMAND.EXE, in the root folder.

Email Propagation

This worm uses the MAPI to reply to email messages found in the system. The email details are as follows:

Subject: Re: <original email subjectl>

Message body:

<original message body>
<domain name> auto-reply:

If you can keep your head when all about you
Are losing theirs and blaming it on you;
If you can trust yourself when all men doubt you,
But make allowance for their doubting too;
If you can wait and not be tired by waiting,
Or, being lied about,don't deal in lies,
Or, being hated, don't give way to hating,
And yet don't look too good, nor talk too wise;
... ... more look to the attachment.
> Get your FREE <domain name> now! <

Attachment: (any of the following)

�Britney spears nude.exe.txt.exe
�Deutsch BloodPatch!.exe
�dreamweaver MX (crack).exe
�DSL Modem Uncapper.rar.exe
�How to Crack all gamez.exe
�I am For u.doc.exe
�Industry Giant II.exe
�joke.pif
�Macromedia Flash.scr
�Me_nude.AVI.pif
�s3msong.MP3.pif
�SETUP.EXE
�Sex in Office.rm.scr
�Shakira.zip.exe
�StarWars2 - CloneAttack.rm.scr
�the hardcore game-.pif

Network Propagation

This malware attempts to drop copies of itself in shared folders with write access. It uses any of the following file names:




Analysis by: Broderick Ian Aquilino

Revision History:

First pattern file version: 2.172.00
First pattern file release date: Mar 21, 2004

SOLUTION


Minimum scan engine version needed: 6.810

Pattern file needed: 2.533.04

Pattern release date: Apr 3, 2005


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:

AUTOMATIC REMOVAL INSTRUCTIONS

To automatically remove this malware from your system, please use Trend Micro Damage Cleanup Services.

MANUAL REMOVAL INSTRUCTIONS

Restarting in Safe Mode

� 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.

Removing Autostart Entries from the Registry

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

  1. Open Registry Editor. To do this, click Start>Run, type Regedit, then press Enter.
  2. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>
    Windows NT>CurrentVersion>Windows
  3. In the right panel, locate and delete the entry:
    Run = RAVMOND.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:
    SystemTra = %Windows%\SysTra.EXE
    Note: %Windows% is the default Windows folder, usually C:\Windows or C:\WINNT.
  6. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>Run
  7. In the right panel, locate and delete the entries:
    Program In Windows = %System%\IEXPLORE.EXE
    VFW Encoder/Decoder Settings = RUNDLL32.EXE MSSIGN30.DLL ondll_reg
    Protected Storage = RUNDLL32.EXE MSSIGN30.DLL ondll_reg
    Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 95, 98 and ME, C:\WINNT\System32 on Windows NT and 2000, and C:\Windows\System32 on Windows XP.
  8. Close Registry Editor.
NOTE: If you were not able to terminate the malware process from memory as described in the previous procedure, restart your system.

Deleting Malware Files

  1. Right-click Start then click Search� or Find� depending on your version of Windows.
  2. In the Named input box, type:
    %Root%\COMMAND.EXE
    %System%\IEXPLORE.EXE
    %System%\KERNEL66.DLL
    %System%\LMMIB20.DLL
    %System%\MSJDBC11.DLL
    %System%\MSSIGN30.DLL
    %System%\ODBC16.DLL
    %System%\RAVMOND.exe
    %System%\RAVMOND.EXE
    %Windows%\SYSTRA.EXE
  3. In the Look In drop-down list, select the drive which contains Windows, then press Enter.
  4. Once located, select the file then hit Delete.

Additional Windows ME/XP Cleaning Instructions

Running Trend Micro Antivirus

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


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