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W32/Parved

This page shows details and results of our analysis on the malware W32/Parved

Threat Detail

Malware Type: Virus

Malware Sub-type: Win32

Discovery Date: 2003-01-02

Next Steps:

Overview

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.


Minimum DAT

4242 (2003-01-11)

Updated DAT

4242 (2003-01-11)

 Minimum Engine

5.1.00

File Length

121,856 bytes

Description Added

2003-01-02

Description Modified

2003-01-02

Malware Proliferation

Characteristics

This malware contains errors, which prevent it from replicating or making other system changes.

The virus uses an icon typically associated with a Shockwave Flash file:

The following are properties of the virus:

  • File Version: 5.0.30.0
  • Description: Flash Player 5.0 r30
  • Copyright: Copyright (C) 1996-2000 Macromedia, Inc.
  • Company Name: Macromedia Inc.
  • Internal Name: Flash
  • Language: English (United States)
  • Legal Trademarks: Flash
  • Original Filename: SwFlsh32
  • Product Name: Flash 5.0
  • Product Version: 5,0,30,0

    The following file is dropped when it is executed (where %SysDir% is the Windows system directory, for example C:\WINDOWS\SYSTEM):

    %SysDir%\DEVPAR.VXD

    The following registry entry is created to run the file each time another executable file is run:

    HKEY_CLASSES_ROOT\exefile\shell\open\command
    "(Default)" = C:\WINDOWS\SYSTEM\DEVPAR.VXD "%1" %*

    To avoid being run twice a mutex is created called "MacromediaFlashPlayer". If this mutex already exists the program exits.

    • Symptoms

    Presence of the file %SysDir%\DEVPAR.VXD

    Method of Infection

    Running the malicious file starts its actions.

    Removal

    All Users:
    Use current engine and DAT files for detection and removal.

    Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

    But in some particular cases, the following steps need to be taken.

    Please go to the Microsoft Recovery Console and restore a clean MBR.

    On Windows XP:

    • Insert the Windows XP CD into the CD-ROM drive and restart the computer.
    • When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
    • Select the Windows installation that is compromised and provide the administrator password.
    • Issue 'fixmbr' command to restore the Master Boot Record
    • Follow onscreen instructions.
    • Reset and remove the CD from CD-ROM drive.


    On Windows Vista and 7:

    • Insert the Windows CD into the CD-ROM drive and restart the computer.
    • Click on "Repair Your Computer".
    • When the System Recovery Options dialog comes up, choose the Command Prompt.
    • Issue 'bootrec /fixmbr' command to restore the Master Boot Record.
    • Follow onscreen instructions.
    • Reset and remove the CD from CD-ROM drive.

    Variants

    United States - English