Trojan.Poweliks!gm

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Discovered: August 05, 2014
Updated: November 18, 2014 1:20:57 AM
Type: Trojan
Systems Affected: Windows

Trojan.Poweliks!gm is a heuristic detection used to detect threats associated with the Trojan.Poweliks family.

Trojan.Poweliks Removal Tool

Antivirus Protection Dates

  • Initial Rapid Release version August 05, 2014 revision 007
  • Latest Rapid Release version July 20, 2018 revision 024
  • Initial Daily Certified version August 05, 2014 revision 017
  • Latest Daily Certified version July 17, 2018 revision 002
  • Initial Weekly Certified release date August 06, 2014

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

Discovered: August 05, 2014
Updated: November 18, 2014 1:20:57 AM
Type: Trojan
Systems Affected: Windows

Trojan.Poweliks!gm is a heuristic detection used to detect threats associated with the Trojan.Poweliks family.

Files that are detected as Trojan.Poweliks!gm are considered malicious. If you have reason to believe that your files are incorrectly detected by Symantec products, you can submit them to Symantec Security Response for further analysis .

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.

Discovered: August 05, 2014
Updated: November 18, 2014 1:20:57 AM
Type: Trojan
Systems Affected: Windows

Automatic removal:

To automatically remove Trojan.Poweliks or Trojan.Poweliks!gm from your computer, please follow the steps for the Trojan.Poweliks Removal Tool .

Manual removal:


To manually remove Trojan.Poweliks or Trojan.Poweliks!gm from your computer, please follow these steps using Administrator permissions:

Note:
It is recommended that you start the computer in Safe Mode with Networking enabled before performing the manual remediation.

Begin by disabling dllhost.exe, by following these steps:


Launch command prompt as an Administrator and navigate to one of the following folders:

  • C:\windows\syswow64 (for 64-bit systems)
  • C:\windows\system32 (for 32-bit systems)

Type the following command into command prompt and press enter to take ownership:
  • takeown /f dllhost.exe /a

Type the following command into command prompt and press enter to disable permissions:
  • cacls dllhost.exe /p everyone:n
Restart the computer.


After dllhost.exe has been disabled, delete the virus string from the registry by following these steps:


Open the Run dialogue box by pressing the following keys:
  • Windows + R

Type the following command in the Run box and click 'OK' to open the registry editor:
  • regedit

Navigate to one of the following registry entries:
  • HKEY_CLASSES_ROOT\CLSID\{73E709EA-5D93-4B2E-BBB0-99B7938DA9E4} (for Windows XP, Windows XP 64-bit Edition, Windows 2000, Windows Server 2003, Windows Server 2003 R2)
  • HKEY_CLASSES_ROOT\CLSID\{AB8902B4-09CA-4bb6-B78DA8F59079A8D5} (for Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008)
Note: HKEY_CLASSES_ROOT may refer to the following:
  • HKEY_CURRENT_USER\Software\Classes\CLSID\
  • HKEY_LOCAL_MACHINE\Software\Classes\CLSID\




Note: If the key is not visible or editable, it may be necessary to edit the registry key permissions. To do this please refer to the next section.


Click on the following subkey:
  • localserver32

Click 'Delete all values' in the right pane.

Exit the Registry Editor and restart the computer.

Look for the following types of activity in the Windows Task Manager:
  • rundll
  • hostdll

Type the following command and press enter to enable dllhost.exe:
  • cacls dllhost.exe /p everyone:f

If the key is not visible or editable, edit the registry key permissions by following these steps:


Navigate to the following registry key:
  • HKEY_CURRENT_USER\Software\Classes\CLSID
  • HKEY_CLASSES_ROOT\CLSID\

    Navigate to the Security tab and click 'Add'.

    After clicking 'Add', check the 'Allow' box for Full Control if it is not already checked.

    Type the following command and click 'OK':
    • Everyone

    Click 'Apply' and then click 'OK'.

    Return to the previous section.