THREAT REMOVAL

Remove Zusy Trojan (Removal Instructions)

This article has been created to help explain what is the Zusy Trojan and how to remove it from your computer effectively.

A new Trojan horse has been detected to spread at an alarming rate that surpasses even the WannaCry infection. The malware, called Zusy has been detected to replicate via a worm and then drop what appears to be a cryptocurrency miner, known as Tiggre (other name is Digmein), which aims to overload the CPU and GPU of the affected computers in order to obtain tokens at their expense and credit them to the cyber-crooks behind this outbreak. In case your computer has been infected by the Zeus Trojan, we recommend that you read this article as it will help you remove this malware and restore your PC’s performance to normal.

Threat Summary

NameZusy Trojan
TypeTrojan Horse / Worm
Short DescriptionAn advanced worm, spreading the Zusy Trojan which downloads different malware on infected computers.
SymptomsAll of your data on your computer may be compromised and your PC may experience slow-downs and have it’s CPU and GPU running on their limits.
Distribution MethodReplicates automatically from infected machines to infected machines. Able to migrate to different networks.
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Zusy Trojan.

Zusy Virus – Distribution

In order to be widespread on a serious level, the Zusy Virus uses a worm infection, which has been reported at VirusTotal and uploaded on Twitter by researcher Vess (@VessOnSecurity ).

Source: VirusTotal

The Zusy malware may use advanced exploits since researchers have reported it in VT as being highly evasive. One report by PayloadSecurity indicateds the following replication URLs in relation to the Zusy virus:

PayloadSecurity

2018-08-14
#evasive

submitname:”ca71f8a79f8ed255bf03679504813c6a.dll.bin”
falcon-threatscore:100/100
memurl:”Heuristic match: down.0814ok.info,Pattern match: hxxp://js.0814ok.info:280/v.sct match: hxxp://wmi.0814ok.info:8888/kill.html;http,Pattern match: hxxp://js.0814ok.info:280/v.sct”

In addition to this, the malware may also have the capability of hijacking flash drives and other external memory carriers that copy scripts that allow for the infection to take place by exploiting AutoPlay in Windows.

Zusy Trojan – Analysis

The Zusy Trojan is the type of threat which aims to drop it’s payloaad files. The payload fils have random names and are also located in folders with random names. The folders are created in the %AppData% directory:

→ %AppData%\{random}\{random file}.exe – also detected as TSPY_ZBOT.ZUSY
%AppData%\{random}\{random file 2}.{random extension}
%AppData%\{random}\{random file 3}.tmp

Once this is done, the Zusy virus then creates an autostart type of registry entry in the following registry sub-key:

→ HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run

The entry is set to run the randomly named .exe file, we mentioned above. Besides these modifications, the Trojan also adds registry entries in the following Windows sub-keys:

→ HKEY_CURRENT_USER\Software\Microsoft\
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\ FirewallPolicy\StandardProfile\AuthorizedApplications\
List %Windows%\explorer.exe = “%Windows%\explorer.exe:*:Enabled:Windows Explorer”

→ HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
WarnonBadCertRecving = “0”

→ HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
EnableSPDY3_0 = “0”

The malware then connects to what appears to be the following malcious URLs:

→ hxxp://js.0814ok.info:280/v.sct match: hxxp://wmi.0814ok.info:8888/kill.html;http, hxxp://js.0814ok.info:280/v.sct

From there it may download a CryptoCurrency miner virus, known as the Tiggre miner (W32/Tiggre), which aslo drops malicious files in the %AppData% directory and begins connecting to a remote server in order to begin mining for cryptocurrencies by utilizing your CPU and GPU to almost a 100%, which results in your PC starting to slow down at an alarming rate.

In addition to this, since it’s also a spyware, the Zusy Trojan may also use it’s tracking technologies to steal different type of information from your PC, based on how the virus is configured. The types of data can be the following:

  • Log your keystrokes.
  • Steal saved passwords.
  • Obtain files from your PC.
  • Take over your communication logs (Chat history, etc.).
  • Take screenshots.
  • Control your web camera.

Furthermore, the Zusy virus may also delete its main malicious file after infecting your computer and continue to spread on another PC’s on a network level of replication (via intermediary and end devices, like routers, switches, etc.). This is done for malware researchers to prevent discovering the infection and hence creating a kill switch of it.

Remove Zusy Trojan from Your PC

If you want to remove the Zusy Trojan completely from your computer, your can do several different actions that isolate it’s activity. The first one is to boot your comptuer into safe mode and then hunt for the registry sub-keys and objects of the virus manually. This can be done by following the manual removal instructions underneath this article.

However, if manual removal does not seem to be working for you or you want to be fully sure that the Zusy virus and all the related miner viruses it drops on your PC are gone for good, be advised that the recommended removal method to go for is automatic removal by scanning your PC with a powerful anti-malware program. Such tool is created to best help you out to remove all of the objects, related to Zusy virus on your PC.

Avatar

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

More Posts - Website

Follow Me:
Twitter


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer

How to Remove Zusy Trojan from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Zusy Trojan

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Zusy Trojan and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Zusy Trojan on your computer.

The usually targeted registries of Windows machines are the following:

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

You can access them by opening the Windows registry editor and deleting any values, created by Zusy Trojan there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for Zusy Trojan with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer

Get rid of Zusy Trojan from Mac OS X.


Step 1: Uninstall Zusy Trojan and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to Zusy Trojan:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Zusy Trojan. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Zusy Trojan. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Zusy Trojan via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Zusy Trojan. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove malware from your Mac

When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Remove Zusy Trojan from Google Chrome.


Step 1: Start Google Chrome and open the drop menu


Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"


Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.


Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Erase Zusy Trojan from Mozilla Firefox.

Step 1: Start Mozilla Firefox. Open the menu window


Step 2: Select the "Add-ons" icon from the menu.


Step 3: Select the unwanted extension and click "Remove"


Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Uninstall Zusy Trojan from Microsoft Edge.


Step 1: Start Edge browser.


Step 2: Open the drop menu by clicking on the icon at the top right corner.


Step 3: From the drop menu select "Extensions".


Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.


Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Remove Zusy Trojan from Safari.


Step 1: Start the Safari app.


Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.


Step 3: From the menu, click on "Preferences".

stf-safari preferences


Step 4: After that, select the 'Extensions' Tab.

stf-safari-extensions


Step 5: Click once on the extension you want to remove.


Step 6: Click 'Uninstall'.

stf-safari uninstall

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Zusy Trojan will be removed.


How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Eliminate Zusy Trojan from Internet Explorer.


Step 1: Start Internet Explorer.


Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'


Step 3: In the 'Manage Add-ons' window.


Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.


Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.


Leave a Comment

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload CAPTCHA.

Share on Facebook Share
Loading...
Share on Twitter Tweet
Loading...
Share on Google Plus Share
Loading...
Share on Linkedin Share
Loading...
Share on Digg Share
Share on Reddit Share
Loading...
Share on Stumbleupon Share
Loading...