Spyware.ElfSpy

Spyware.ElfSpy

Updated:
February 13, 2007
Version:
1.4
Publisher:
www.elfrah.com
Risk Impact:
High
File Names:
svchost.exe swhdll.dll
Systems Affected:
Windows

Behavior


Spyware.ElfSpy is a spyware application that can log keystrokes and the programs launched on a computer.

Symptoms


Your Symantec program detects Spyware.ElfSpy.

Behavior


Spyware.ElfSpy must be manually installed.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version February 01, 2015 revision 020
  • Initial Daily Certified version April 22, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date April 22, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Spyware.ElfSpy runs, it performs the following actions:
  1. Creates the following files in the current folder:
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_XP2003\svchost.exe
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_XP2003\swhdll.dll
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_XP2003\SVCHOST.HLP
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_XP2003\*.log
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_98ME2000\svchost.exe
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_98ME2000\swhdll.dll
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_98ME2000\SVCHOST.HLP
    • \ElfrahPCSpy1.4_eng\ElfrahPCSpy1.4_eng_98ME2000\*.log

  2. Adds the value:

    "SVC" = "[path to file]\svchost.exe"

    to the registry subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

    so that the Spyware runs every time Windows starts.

  3. Injects the file swhdll.dll into running processes so that it can log keystrokes.



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.
  4. Delete any values 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 restart 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. For instructions, read the document, "How to start the computer in Safe Mode ."


3. To run the scan
  1. Start your Symantec antivirus program, and then run a full system scan.
  2. If any files are detected as Spyware.ElfSpy 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.
  3. If you are still in Safe mode, restart the computer in Normal mode before proceeding to the next section.

4. To reverse the changes made to 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 subkeys 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 subkeys:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the value:

    "SVC"="[path to file]\svchost.exe"

  5. Exit the Registry Editor.