Dialer.Eroskop

Dialer.Eroskop

Updated:
February 13, 2007
Risk Impact:
High
File Names:
antyvirk.exe
Systems Affected:
Windows

Behavior


Dialer.Eroskop is a dialer program that can be used to access pornographic Web sites by dialling a high-cost telephone number using a modem.

Symptoms


Your Symantec program detects Dialer.Eroskop.

Behavior


This security risk can be manually installed or installed as a component of another program.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version October 02, 2014 revision 022
  • Initial Daily Certified version December 22, 2004
  • Latest Daily Certified version January 17, 2008 revision 033
  • Initial Weekly Certified release date December 22, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Dialer.Eroskop is executed, it does the following:
  1. Creates the following files:
    • %Temp%\1.swf
    • index.html
    • %Windir%\antyvirk.exe

      Notes:
      • %Temp% is a variable that refers to the Windows temporary folder. By default, this is C:\Windows\TEMP (Windows 95/98/Me/XP) or C:\WINNT\Temp (Windows NT/2000).
      • %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

  2. Copies itself as "Ulubione strony.exe" on the Desktop.

  3. Adds the values:

    "UninstallString" = "%Windir%\antyvirk.exe usek"
    "DisplayName" = "CONNECT"

    to the registry key:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\CONNECT

  4. Adds the value:

    "AntyVirK" = "%Windir%\antyvirk.exe ukrt"

    to the registry key:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

  5. Uses a modem to dial a high-cost phone number.

  6. Displays the following window:





  1. Update the definitions.
  2. Close modem connections
  3. Uninstall Dialer.Eroskop using the Add/Remove Programs utility.
  4. Run a full system scan.
  5. 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 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. To uninstall the Adware
  1. Do one of the following:
    1. On the Windows 98 taskbar:
      1. Click Start > Settings > Control Panel.
      2. In the Control Panel window, double-click Add/Remove Programs.

    2. On the Windows Me taskbar:
      1. Click Start > Settings > Control Panel.
      2. In the Control Panel window, double-click Add/Remove Programs.
        If you do not see the Add/Remove Programs icon, click "...view all Control Panel options."

    3. On the Windows 2000 taskbar:
      By default, Windows 2000 is set up the same as Windows 98, so follow the instructions for Windows 98. If otherwise, click Start, point to Settings > Control Panel, and then click Add/Remove Programs.

    4. On the Windows XP taskbar:
      1. Click Start > Control Panel.
      2. In the Control Panel window, double-click Add or Remove Programs.
  2. Click CONNECT.


    Note:
    You may need to use the scroll bar to view the whole list.

  3. Click Add/Remove, Change/Remove, or Remove (this varies with the operating system). Follow the prompts.


4. To run the scan
  1. Start your Symantec antivirus program, and then run a full system scan.

    Note: If you ran the Add/Remove programs applet as described in the previous section, all the files may have been removed, and thus none of them will be detected.
  2. If any files are detected as Dialer.Eroskop 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.


5. 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 key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the value:

    "AntyVirK" = "%Windir%\antyvirk.exe ukrt"

  5. Navigate to the key:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\CONNECT

  6. In the right pane, delete the values:

    "UninstallString" = "%Windir%\antyvirk.exe usek"
    "DisplayName" = "CONNECT"

  7. Exit the Registry Editor