Dialer.Sexitaly

SUMMARY

Behavior

Dialer.Sexitaly is a dialer program that can be used to access various material by dialing high-cost numbers using a modem. Most of the accessible material is pornographic.

Symptoms

Your Symantec antivirus program detects Dialer.Sexitaly.

Transmission

The most common installation method of this dialer is through various Web sites, mainly pornographic in nature.

Protection

• Virus Definitions (LiveUpdate™ Weekly) December 31, 2003
• Virus Definitions (Intelligent Updater) December 29, 2003

TECHNICAL DETAILS

When Dialer.Sexitaly is executed, it does the following:

1. Copies itself to %System%Sex_i.exe.
   

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   Note: %System% is a variable. The dialer locates the System folder and copies itself to that location. By default, this is C:WindowsSystem (Windows 95/98/Me), C:WinntSystem32 (Windows NT/2000), or C:WindowsSystem32 (Windows XP).

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2. Adds the value:
   
   "sex_i.exe" = "%System%sex_i.exe -d"
   
   to the following registry keys:
   
   HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
   HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersion
   RunServices
   
3. Creates an icon on the Windows desktop.
   
4. Displays a licensing agreement. If you accept the licensing agreement, the dialer will attempt to call a high-cost number using the modem.
   
5. Attempts to connect to a pornographic Web site.

REMOVAL

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.Sexitaly.
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 your Symantec antivirus program and run a full system scan.
2. If any files are detected as Dialer.Sexitaly, click Delete.
   
   

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

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4. Deleting the values from the registry

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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.

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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_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
   
4. In the right pane, delete the value:
   
   "sex_i.exe" = "%System%sex_i.exe -d"
   
5. Navigate to the key:
   
   HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersion
   RunServices
   
   

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   Note: The RunServices key will not be found on most Windows NT2000XP computers.

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6. In the right pane, delete the value:
   
   "sex_i.exe" = "%System%sex_i.exe -d"
   
7. Exit the Registry Editor.