Spyware.NetVizor

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Updated: February 13, 2007 11:38:46 AM
Type: Spyware
Publisher: Spytech, Inc
Risk Impact: High
File Names: sysdiag.exe,svchost.exe,SystemSA32N.dll,YahooDLL.dll,SystemSA32.dll,sagent.exe
Systems Affected: Windows

Behavior


Spyware.NetVizor is a spyware application that logs keystrokes and captures screenshots.

Symptoms


Your Symantec program detects this threat as Spyware.NetVizor.

Transmission


This program must be manually installed.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version May 04, 2018 revision 025
  • Initial Daily Certified version July 21, 2004
  • Latest Daily Certified version May 05, 2018 revision 001
  • Initial Weekly Certified release date July 21, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Updated: February 13, 2007 11:38:46 AM
Type: Spyware
Publisher: Spytech, Inc
Risk Impact: High
File Names: sysdiag.exe,svchost.exe,SystemSA32N.dll,YahooDLL.dll,SystemSA32.dll,sagent.exe
Systems Affected: Windows


When the risk is executed, it performs the following actions:

  1. May add the following values:

    "Srv32Win" = "C:\Program Files\nvclient\sysdiag.exe"
    "1SPC" = "C:\Program Files\SentryPC\services.exe"
    "Srv32Win" = "C:\Program Files\nvclient\sysdiag.exe"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

    so that it starts when Windows starts.

  2. May add the value:

    "C:\WINDOWS\unvise32.exe" = "1"

    to the following subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs

  3. May add the value:

    "IgnoreShiftOveride" = "1"

    to the following subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

  4. May create the following registry subkeys:

    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\KeyCaptor
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NetVizor
    • KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SentryPC
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Spytech SpyAgent
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu
      \Programs\Spytech SpyAgent
    • KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\SentryPC
    • KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\NetVizor
    • KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\KeyCaptor

  5. May create the following folders that contain a number of log files:

    • %Windir%\sacache
    • %Windir%\syscache
    • %SystemDrive%\Documents and Settings\All Users\Application Data\AgentSS
    • %SystemDrive%\Documents and Settings\All Users\Application Data\sacache

      Note:
    • %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
    • %SystemDrive% is a variable that refers to the drive on which Windows is installed. By default, this is drive C.

  6. May then create the following files:

    • %System%\ntinvisible.dll
    • %Windir%\libimg.dll (legitimate component)
    • %Windir%\sbrowse.exe
    • %Windir%\snmpapi.dll (legitimate component)
    • %Windir%\systemsa32.dll
    • %Windir%\yahoodll.dll
    • %Windir%\saopts.dat
    • %Windir%\nvopts.dat
    • %System%\acopts.dat
    • %SystemDrive%:\Documents and Settings\All Users\Application Data\[RANDOM CHARACTERS]-acu.dat
    • %SystemDrive%:\Documents and Settings\All Users\Application Data\[USER NAME]-acopts.dat
    • %SystemDrive%:\Documents and Settings\All Users\Application Data\sacache\nowin.log
    • %Windir%\kcopts.dat
    • %Windir%\nvvopts.dat
    • %Windir%\nvsys.dat
    • %Windir%\registry.dat
    • %SystemDrive%:\Documents and Settings\All Users\Application Data\[RANDOM CHARACTERS].idf
    • %Windir%\syscache\wincfg[RANDOM CHARS].ssf
    • %Windir%\sadefs.dat
    • %Windir%\saopts.dat
    • %SystemDrive%:\Documents and Settings\All Users\Application Data\emopts.dat
    • %Windir%\spcchat.dll
    • %Windir%\ACSystem.dll
    • %Windir%\SystemSa32N.dll
    • %ProgramFiles%\nvclient\svchost.exe
    • %ProgramFiles%\nvclient\sysdiag.exe
    • %Windir%\SystemSA32.dll
    • %System%\NTInvisible.dll
    • %System%\spcinvis.dll
    • %Windir%\NTInvisible.dll
    • %Windir%\sbrowse.exe
    • %Windir%\spcviewer.exe
    • %Windir%\systemsa32.dll
    • %Windir%\yahoodll.dll
    • %Windir%\clfct.dll
    • %Windir%\sview.exe
    • %System%\sinvfct.dll
    • %System%\msvcr70.dll
    • %System%\sinvfct.dll
    • %Windir%\Base64.dll
    • %Windir%\sysk32.dll
    • %Windir%\unvise32.exe (legitimate component)

      Note:
    • %System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
    • %ProgramFiles% is a variable that refers to the program files folder. By default, this is C:\Program Files.

  7. May also create one of the following folders:

    • %ProgramFiles%\NetVizor
    • %ProgramFiles%\SentryPC
    • %ProgramFiles%\Spytech Software\Spytech SpyAgent
    • %ProgramFiles%\KeyCaptor

  8. May populate the above folders with the following files:

    • deploy.exe
    • help.htm
    • license.txt
    • nostealth.exe
    • readme!.txt
    • svchost.exe
    • sysdiag.exe
    • uninstal.log
    • uninstaller.dll
    • services.exe
    • Other files, depending on the version of the spyware

  9. May create one of the following folders:

    • %SystemDrive%\Documents and settings\All Users\Start Menu\Programs\KeyCaptor
    • %SystemDrive%\Documents and settings\All Users\Start Menu\Programs\NetVizor
    • %SystemDrive%\Documents and settings\All Users\Start Menu\Programs\SentryPC
    • %SystemDrive%\Documents and settings\All Users\Start Menu\Programs\Spytech SpyAgent

  10. May populate the above folder with the following files:

    • Help Documentation.lnk
    • License EULA.lnk
    • Read me.lnk
    • Other files, depending on the version of the spyware

  11. May also create the following folder, which contains legitimate Win Packet Capture library components:

    %ProgramFiles%\WinConfig winpcap

  12. Can be run in full silent mode with no splash screen in the full, non-trial version.

  13. Can create an Administrative install or a more basic Stealth install (no help files or shortcuts)

  14. Provides an option to create an uninstaller.

  15. Records some of the following data:

    • Keystrokes
    • Web sites visited
    • Files opened
    • Email sent/received
    • Instant messages sent/received
    • Internet connections


Updated: February 13, 2007 11:38:46 AM
Type: Spyware
Publisher: Spytech, Inc
Risk Impact: High
File Names: sysdiag.exe,svchost.exe,SystemSA32N.dll,YahooDLL.dll,SystemSA32.dll,sagent.exe
Systems Affected: Windows


The following instructions pertain to all Symantec antivirus products that support Security Risk detection.

  1. Update the definitions.
  2. Restart the computer in Safe mode.
  3. Run a full system scan.
  4. Delete the value that was added to the registry.
For specific details on each of these steps, read the following instructions.

1. To update the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.

2. To restart the computer in Safe mode
Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode. For instructions, read the document, "How to start the computer in Safe Mode ."

3. To run the scan
  1. Start your Symantec antivirus program, and then run a full system scan.
  2. If any files are detected as Spyware.NetVizor and depending on which software version you are using, you may see one or more of the following options:


    Note: This applies only to versions of Norton AntiVirus that support Security Risk detection. If you are running a version of Symantec AntiVirus Corporate Edition that supports Security Risk detection, and Security Risk detection has been enabled, you will only see a message box that gives the results of the scan. If you have questions in this situation, contact your network administrator.
    • Exclude (Not recommended): If you click this button, it will set the threat so that it is no longer detectable. That is, the antivirus program will keep the security risk on your computer and will no longer detect it to remove from your computer.

    • Ignore or Skip: This option tells the scanner to ignore the threat for this scan only. It will be detected again the next time that you run a scan.

    • Cancel: This option is new to Norton Antivirus 2005. It is used when Norton Antivirus 2005 has determined that it cannot delete a security risk. This Cancel option tells the scanner to ignore the threat for this scan only, and thus, the threat will be detected again the next time that you run a scan.

      To actually delete the security risk:
      • Click its file name (under the Filename column).
      • In the Item Information box that displays, write down the full path and file name.
      • Then use Windows Explorer to locate and delete the file.

        If Windows reports that it cannot delete the file, this indicates that the file is in use. In this situation, complete the rest of the instructions on this page, restart the computer in Safe mode, and then delete the file using Windows Explorer.

    • Delete: This option will attempt to delete the detected files. In some cases, the scanner will not be able to do this.
      • If you see a message, "Delete Failed" (or similar message), manually delete the file.
      • Click the file name of the threat that is under the Filename column.
      • In the Item Information box that displays, write down the full path and file name.
      • Then use Windows Explorer to locate and delete the file.

        If Windows reports that it cannot delete the file, this indicates that the file is in use. In this situation, complete the rest of the instructions on this page, restart the computer in Safe mode, and then delete the file using Windows Explorer.

4. To delete the value from the registry

Important:
Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry ," for instructions.
  1. Click Start > Run.
  2. Type regedit

    Then click OK.

  3. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the values:

    "Srv32Win" = "C:\Program Files\nvclient\sysdiag.exe"
    "1SPC" = "C:\Program Files\SentryPC\services.exe"
    "Srv32Win" = "C:\Program Files\nvclient\sysdiag.exe"

  5. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs

  6. In the right pane, delete the value:

    "C:\WINDOWS\unvise32.exe" = "1"

  7. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

  8. In the right pane, delete the value:

    "IgnoreShiftOveride" = "1"

  9. Navigate to and delete the following subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\KeyCaptor
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NetVizor
    KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SentryPC
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Spytech SpyAgent
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\Spytech SpyAgent
    KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\SentryPC
    KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\NetVizor
    KEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\KeyCaptor

  10. Exit the registry editor.