WinCE.Duts.A

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Discovered: July 17, 2004
Updated: February 13, 2007 12:25:21 PM
Also Known As: WinCE/Duts.1536 [McAfee], Duts.1520 [F-Secure], WINCE_DUTS.A [Trend], WCE/Duts-A [Sophos], WinCE.Duts.a [Kaspersky]
Type: Virus
Systems Affected: Windows


WinCE.Duts.A is the first Windows CE (Pocket PC) file infector. The virus is a simple, appending file-infector that will only infect ARM-based devices.

Antivirus Protection Dates

  • Initial Rapid Release version July 17, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version July 17, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date July 17, 2004

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

Writeup By: Eric Chien

Discovered: July 17, 2004
Updated: February 13, 2007 12:25:21 PM
Also Known As: WinCE/Duts.1536 [McAfee], Duts.1520 [F-Secure], WINCE_DUTS.A [Trend], WCE/Duts-A [Sophos], WinCE.Duts.a [Kaspersky]
Type: Virus
Systems Affected: Windows


When WinCE.Duts.A is executed, it performs the following actions:

  1. Displays the following message, asking the user whether the virus can continue to execute:




  2. If the user agrees, the virus appends itself to all the non-infected .exe files in the root folder.

    Note: The virus contains no payload.


Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

  • Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
  • Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
  • Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
  • Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
  • Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
  • Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
  • If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
  • Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
  • Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
  • Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
  • Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
  • If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
  • For further information on the terms used in this document, please refer to the Security Response glossary.

Writeup By: Eric Chien

Discovered: July 17, 2004
Updated: February 13, 2007 12:25:21 PM
Also Known As: WinCE/Duts.1536 [McAfee], Duts.1520 [F-Secure], WINCE_DUTS.A [Trend], WCE/Duts-A [Sophos], WinCE.Duts.a [Kaspersky]
Type: Virus
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. Update the virus definitions.
  2. Run a full system scan and delete all the files detected as WinCE.Duts.A.
  3. Restore the infected files from a backup.

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

1. To update the virus definitions
Running LiveUpdate to obtain the latest virus definitions for Symantec AntiVirus for Handhelds. For instructions on how to do this, read the document, "Updating virus definitions for Symantec AntiVirus for Handhelds Corporate Edition 3.2 ."

2. To scan for and delete the infected files
  1. Start Symantec AntiVirus for Handhelds and make sure that it is configured to scan the main storage and mounted file systems.
  2. Run a scan.
  3. If any files are detected as infected with WinCE.Duts.A, write down the file names.

3. To restore infected files from a backup
Overwrite any files that were detected as infected with WinCE.Duts.A from a known, virus-free backup.


Writeup By: Eric Chien