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.



13 February 2007
Risk Impact:
File Names:
act.exe lspp.exe uninstal.exe
Systems Affected:


Adware.LSPP displays advertisements and may download other programs.


Your Symantec program detects this threat as Adware.LSPP.


This adware program must be manually installed.

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 March 2004
  • Latest Daily Certified version 26 January 2015 revision 023
  • Initial Weekly Certified release date 10 March 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When adware.LSPP is executed, it performs the following actions:
  1. Drops the following files into the C:\LSPP folder:
    • lspp.exe (The main program)
    • act.exe (An updating utility)
    • uninstal.exe (The uninstaller)
    • leeme.txt (Uninstall information in Spanish)
    • licencia.txt (License agreement in Spanish)
    • readme.txt (Uninstall information in English)

  2. Adds the value:

    "lspp" = "C:\LSPP\lspp.exe"

    to the registry key:


    so that the Adware runs when you start Windows.

  3. Downloads a Web page from a predetermined site. The contents of this page are used to determine what to download and execute.

    Note: At present, the adware only appears to update itself, but the license agreement reserves the right to download other programs.

  4. If lspp.exe is required to update itself, it downloads the new version as lspp2.exe, executes act.exe, and then exits. After waiting 10 seconds, act.exe copies lspp2.exe over lspp.exe, and then executes it.

  5. Displays pop-up advertisements.

The following instructions pertain to all Symantec antivirus products that support Security Risk detection.
  1. Update the definitions.
  2. Restart the computer in Safe mode
  3. Run a full system scan and delete all the files detected as Adware.LSPP.
  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. Restarting the computer in Safe mode
Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode. For instructions, read the document, "How to start the computer in Safe Mode ."

3. Scanning for and deleting the files
  1. Start your Symantec antivirus program, and then run a full system scan.
  2. If any files are detected as Adware.LSPP, click Delete.

    Note: If your Symantec antivirus product reports that it cannot delete a detected file, note the path and file name. 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:


  4. In the right pane, delete the value:


  5. Close the Registry Editor.