Dialer.DialNet

Dialer.DialNet

Updated:
13 February 2007
Publisher:
Multi Service S.r.l.
Risk Impact:
High
File Names:
Mxt32.exe
Systems Affected:
Windows

Behavior


Dialer.Dialnet is an Italian language dialer. Its program file is Mxt32.exe. Dialer.Dialnet creates a shortcut to that file on the Windows desktop. If you delete the shortcut, it is recreated on startup.

Symptoms


A yellow icon that is a shortcut to the program, Lucerossa, reappears on the Windows desktop each time you start Windows.
  • When the file is executed, an Italian language dialog is displayed, with the title "Programma di connessione."


Behavior


The most likely installation method of this dialer program is through various Web sites.

Antivirus Protection Dates

  • Initial Rapid Release version 02 October 2014 revision 022
  • Latest Rapid Release version 01 February 2015 revision 020
  • Initial Daily Certified version 08 December 2003
  • Latest Daily Certified version 28 September 2010 revision 036
  • Initial Weekly Certified release date 10 December 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Dialer.Dialnet is executed, it does the following:
  1. Creates the program file, %System%\Mxt32.exe.


    Note: %System% is a variable. The dialer locates the System folder and copies itself to that location. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

  2. Adds the value:

    "DialNet"="%System%\mxt32.exe /icon"

    to the registry key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

    so that the desktop icon is recreated each time you start Windows.



The following instructions pertain to all Symantec antivirus products that support Security Risk detection.
  1. Update the definitions.
  2. Close modem connections.
  3. Run a full system scan and delete all the files detected as Dialer.Dialnet.
  4. Delete the value that was added to the registry.
For specific details on each of these steps, read the following instructions.

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

2. To close modem connections
This risk uses available modems to create an Internet connection, sometimes without any visible signs. In order to successfully remove this threat, ensure that all modem-based Internet connections are disconnected before proceeding. For instructions on how to do this, consult the appropriate Internet service provider, computer manufacturer, or operating system documentation.

3. Scanning for and deleting the files
  1. Start Norton AntiVirus and make sure that it is configured to scan all the files. For more information, read the document, "How to configure Norton AntiVirus to scan all files."
  2. Run a full system scan.
  3. If any files are detected as Dialer.Dialnet, click Delete.


    Note: If your Symantec antivirus product reports that it cannot delete a detected file, write down the path and file names. Then use Windows Explorer to locate and delete the file.

4. Deleting the value from the registry

WARNING: 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, and then click Run. (The Run dialog box appears.)
  2. Type regedit

    Then click OK. (The Registry Editor opens.)

  3. Navigate to the key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the value:

    "DialNet"="%System%\mxt32.exe /icon"

  5. Exit the Registry Editor.