Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

Dialer.IEDisco

Dialer.IEDisco

Updated:
13 February 2007
Risk Impact:
High
File Names:
IEAccess2.dll
Systems Affected:
Windows

Behavior


Dialer.IEDisco is a .dll file that can:
  • Download executables from a designated Web site
  • Stop personal firewall processes
  • Dial radome numbers
  • Install a dialer.

Symptoms


Dialer.IEDisco may stop the following processes:
  • SYMPROXYSVC.EXE
  • SMC.EXE
  • PERSFW.EXE
  • AGENTW.EXE
  • ZONEALARM.EXE
  • BLACKICE.EXE
  • CMESys.exe
  • GMT.exe

Behavior


Dialer.IEDisco is a .dll file that must be registered, and its API must called by another executable.

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 26 May 2004
  • Latest Daily Certified version 17 January 2008 revision 033
  • Initial Weekly Certified release date 26 May 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Dialer.IEDisco is run, it can perform the following actions:


Note: Dialer.IEDisco is a .dll file. It cannot be executed by itself. It may require another executable that uses the dialer to execute it and perform these actions.

  1. Creates the file %Windir%\iedisco.exe


    Note: %Windir% is a variable. By default, this is C:\Windows or C:\Winnt


    Iedisco.exe is a dialer that dials a phone number. Some dialers may be configured to connect to Internet Service Providers. Others connect to a toll number without your awareness or permission.
  2. Downloads and installs %Windir%\Sysres.exe from a designated Web site.
  3. Stops the following personal firewall processes:
    • SYMPROXYSVC.EXE
    • SMC.EXE
    • PERSFW.EXE
    • AGENTW.EXE
    • ZONEALARM.EXE
    • BLACKICE.EXE
  4. Locates and executes Wintrim.exe.
  5. Stops the following adware/spyware processes:
    • CMESys.exe
    • GMT.exe
  6. Dials randomly generated numbers.



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
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 run the scan
  1. Start your Symantec antivirus program, and then run a full system scan.
  2. If any files are detected, 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 risk 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 risk 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 risk for this scan only, and thus, the risk 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.

    • 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 risk 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.

Important: If you are unable to start your Symantec antivirus product or the product reports that it cannot delete a detected file, you may need to stop the risk from running in order to remove it. To do this, run the scan in Safe mode. For instructions, read the document, How to start the computer in Safe Mode . Once you have restarted in Safe mode, run the scan again.

After the files are deleted, restart the computer in Normal mode and proceed with the next section.

Warning messages may be displayed when the computer is restarted, since the risk may not be fully removed at this point. You can ignore these messages and click OK. These messages will not appear when the computer is restarted after the removal instructions have been fully completed. The messages displayed may be similar to the following:

Title: [FILE PATH]
Message body: Windows cannot find [FILE NAME]. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.