Updated: February 14, 2007 11:32:49 AM
Type: Security Assessment Tool
Name: X-Scan
Publisher: Xfocus
Risk Impact: Low
Systems Affected: Windows


XScan is a program that scans for security vulnerabilities.

Virus definitions prior to February 12th, 2007 will detect this risk as Hacktool.XScan.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version April 17, 2018 revision 009
  • Initial Daily Certified version January 17, 2004
  • Latest Daily Certified version April 17, 2018 revision 034
  • Initial Weekly Certified release date January 21, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Updated: February 14, 2007 11:32:49 AM
Type: Security Assessment Tool
Name: X-Scan
Publisher: Xfocus
Risk Impact: Low
Systems Affected: Windows

When the program is executed, it creates the following files:

  • Xscan.exe
  • 010-port.xpn
  • 020-netbios.xpn
  • 030-rpc.xpn
  • 090-ntpass.xpn
  • Update.exe
  • XScanLib.dll
  • xscan_gui.exe
  • xpf.sys
  • X-Scan-v3.3-en.rar

The program may create a service with the following characteristics:
Display Name: XScanPF
Image Path: \??\[INSTALL PATH]\dat\xpf.sys
Description: XScanPF

The program allows an attacker to search a range of IP addresses for computers vulnerable to specific exploits.

Updated: February 14, 2007 11:32:49 AM
Type: Security Assessment Tool
Name: X-Scan
Publisher: Xfocus
Risk Impact: Low
Systems Affected: Windows

The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.

  1. Disable System Restore (Windows Me/XP).
  2. Update the virus definitions.
  3. Run a full system scan.

For specific details on each of these steps, read the following instructions.

1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.

Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.

Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.

For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:

Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, reenable System Restore by following the instructions in the aforementioned documents.

For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article: Antivirus Tools Cannot Clean Infected Files in the _Restore Folder (Article ID: Q263455).

2. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Running LiveUpdate, which is the easiest way to obtain virus definitions.
  • Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to Virus Definitions (Intelligent Updater).

The latest Intelligent Updater virus definitions can be obtained here: Intelligent Updater virus definitions . For detailed instructions read the document: How to update virus definition files using the Intelligent Updater .

3. To run a full system scan
  1. Start your Symantec antivirus program and make sure that it is configured to scan all the files.
  2. Run a full system scan.
  3. If any files are detected, follow the instructions displayed by your antivirus program.
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.