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TSPY_ZBOT.ZQT

October 12, 2010
 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW



It may be unknowingly downloaded by a user while visiting malicious websites.
It adds registry entries to enable its automatic execution at every system startup.
It attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data.
It attempts to get information from a list of banks or financial institutions.

  TECHNICAL DETAILS

Initial Samples Received Date:

01 Jan 0001




Arrival Details


It may be unknowingly downloaded by a user while visiting malicious websites.



Autostart Technique


It adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
{B06540ED-7D09-D3B0-F788-86C5368043A0} =%Application Data%\{random1}\{random}.exe



Information Theft


It accesses the following site to download its configuration file:


It attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data.


It attempts to get information from a list of banks or financial institutions.



Installation


It drops the following files:

  • %Application Data%\{random1}\{random}.exe

  • %Application Data%\{random2}\{random}.{random}


It creates the following folders:

  • %Application Data%\{random1}

  • %Application Data%\{random2}



Other System Modifications


It adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\{random}
@= 

  SOLUTION

Minimum Scan Engine:

8.900



Step 1
For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2
Restart in Safe Mode
[ Learn More ]


Step 3
Delete this registry value This step allows you to delete the registry value created by the malware/grayware/spyware.

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • {B06540ED-7D09-D3B0-F788-86C5368043A0}
      • %Application Data%\{random1}\{random}.exe
    • In HKEY_CURRENT_USER\Software\Microsoft\{random}

To delete the registry value this malware/grayware/spyware created:

  1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
  2. In the left panel, double-click the following:
     HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
  3. In the right panel, locate and delete the entry:
    {B06540ED-7D09-D3B0-F788-86C5368043A0}%Application Data%\{random1}>{random}.exe
  4. In the left panel, double-click the following:
    H
  5. In the right panel, locate and delete the entry:
  6. Close Registry Editor.

Step 4
Search and delete this folder This step allows you to search and delete the folder created by this malware/grayware/spyware. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • In %Application Data%\{random1}
    • %Application Data%\{random2}

To delete the malware/grayware/spyware folder:

  1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
  2. In the Named input box, type:
      %Application Data%\{random1}&&%Application Data%\{random2}
  3. In the Look In drop-down list, select My Computer, then press Enter.
  4. Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.

Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_ZBOT.ZQT If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

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