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Trojan:BAT/Poweliks.A. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Trojans

Trojan:BAT/Poweliks.A is a detection of a malicious Poweliks Trojan

Trojan:BAT/Poweliks.A is a detection of a Trojan Horse

Trojan:BAT/Poweliks.A is a name of a Trojan[1] horse returned to PC users by an AV-engine. This name can be used interchangeably with the following: Poweliks Trojan, Trojan.Poweliks, Trojan.Poweliks!gm, SONAR.Poweliks!gen1 and similar. The virus stands out from the others since it's is not detectable in the form of a file.[2] It resides in Windows Registry and relies on Watchdog maintenance.

Name Trojan:BAT/Poweliks.A
Type Trojan
Related to Poweliks Trojan
Also recognized as TROJ_POWELIKS.A, Trojan.Poweliks.A, Trojan.Win32.Powerliks.a, Trojan:Win32/Powessere, ATrojan.Win32.Powerliks.a
Danger level Medium. Initiates multiple system's changes, but does not harm the system directly. The risk – can infect the system with malware via dangerous ads
Download Reimage and run a scan in Safe Mode with Networking environment to get rid of Trojan:BAT/Poweliks.A

First detected in 2014, the malware mutated in many ways, but most of AV engines are still struggling to detect and immunize it successfully. Trojan:BAT/Poweliks.A malware does not have related files. That's why it's known as Fileless Trojan. Once executed, the malware uses various registry tricks, to name but a few:

  • Creates the following entries:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”(default)” = “[ENCRYPTED JAVASCRIPT]”

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”[NON-ASCII STRING]” = “rundll32.exe javascript:\”\..\mshtml,RunHTMLApplication \”;document.write(\”\74script language=jscript.encode>\”+(new%20ActiveXObject(\”WScript.Shell\”)).RegRead(\”HKCU\\software\\microsoft\\windows\\currentversion\\run\\\”)+\”\74/script>\”)”

  • Uses a special naming method.
  • Hijacks CLSID entries (Class ID, which is a 16-byte value that identifies an individual object). Targets the {FBEB8A05-BEEE-4442-804E-409D6C4515E9}, {73E709EA-5D93-4B2E-BBB0-99B7938DA9E4}, and {AB8902B4-09CA-4BB6-B78D-A8F59079A8D5} entries in particular. This way, it can run any time the system starts running or when the user of the infected PC opens specific folders;
  • Misuses a legitimate rundll32.exe file to execute JavaScipt code, which is further used to compromise data on Windows Registry;
  • Installs and runs Watchdog process, which maintains the Trojan and protectsts it from removal. It is capable of recovering the deleted virus instantly.
  • Watchdog process also changes access rights to keep Poweliks Trojan undetected under Windows Registry. For this purpose, it uses unprintable characters;
  • Builds a wall not to be detected within Registry. Most AV engines fail to remove Trojan:BAT/Poweliks.A virus since they cannot access the LocalServer32 subkey where the payload of the malware roots. For this purpose, it uses 0x06 byte and the 0x08 byte mechanism, which is not recognized as a Unicode printable character. Consequently, the LocalServer32 subkey becomes unreadable.

In short, specialists find it difficult to remove Trojan:BAT/Poweliks.A Trojan due to the intricate performance mechanism it uses. Once the Powerliks gets inside, its payload decrypts targeted values, runs PowerShell scripts to take control over Watchdog process and misuses rundll32.exe file to infect Windows Registry.

Trojan is a malicious cyber infection that can cause serious problems. They are often used for the distribution of ransomware, spyware, and other malware. Thus, NoVirus.uk[3] team urge people to remove Trojan:BAT/Poweliks.A without a delay using Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

Nevertheless, this trojan is not the most dangerous infection in the wilds. It's a tool employed by hackers who seek to generate pay-per-fraud activities to increase income from advertising. It is developed in a way to display keyword-based ads. It initiates a fake search by typing in default keywords and the browses for the required URLs. The minimum ads the

Trojan:BAT/Poweliks.A Trojan is requested to load is 3,000 by default, though not a single one will be revealed to the user of the infected PC. However, their content is not being investigated, so there's a high risk of getting infected with ransomware, spyware, keylogger or another severe cyber infection via trojanized invisible ads. 

Spam email allows Trojan to circulate on the web since 2014

According to cyber security experts, the file-less Trojan is most frequently distributed via malicious spam email attachments. Typically, they are disclosed in the form of Doc file from a shipping company USPS. It claims to contain package-related information.[4] 

In this case, the only way to secure your system from infection is to report such an email as spam and remove it asap. Keep in mind that legitimate companies are not distributing suspicious-looking emails with attachments unless the client is informed about that in advance.

Besides, the virus can use rogue software updates or infected ads to get installed on a target system. Watch out for prompts to update FLV Player, Google Chrome, Flash Player, Java, and similar software.

Remove Trojan:BAT/Poweliks.A from the system and restore Windows Registry easily

Tech-savvy people may find it easy to remove Trojan:BAT/Poweliks.A virus manually at first, but the process is more complicated than it initially might seem. The process requires a careful termination of multiple processes, the removal of the virus, and a restoration of Windows Registry entries.

To initiate Trojan:BAT/Poweliks.A removal successfully, designate this task to a professional anti-virus program, such as Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. The first program recommended performs as a robust optimization tool. It contains a full database of Windows system's files and is capable of fixing Windows Registry. Thus, we would strongly recommend relying on Reimage.

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[GIS-HEADER]Try Trojan.Poweliks Removal Tool[/GIS-HEADER]

If you cannot get rid of this infection using your anti-virus, you should give Trojan.Poweliks Removal by Symantec a try. Download it here and run a full system scan. 

[/GIS]

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Trojan:BAT/Poweliks.A. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
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Manual Trojan:BAT/Poweliks.A Removal Guide:

Remove Trojan:BAT/Poweliks.A using Safe Mode with Networking

WatchDog process can block your antivirus program completely. If you cannot run the program that is currently installed on your PC, you should follow this tutorial to boot the system into secure environment.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Trojan:BAT/Poweliks.A

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Trojan:BAT/Poweliks.A removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Trojan:BAT/Poweliks.A using System Restore

If the previous method did not work, try to delete Poweliks this way:

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Trojan:BAT/Poweliks.A. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Trojan:BAT/Poweliks.A removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Trojan:BAT/Poweliks.A and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Julie Splinters - Malware removal specialist

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