THREAT REMOVAL

Symmi Virus (Trojan) – How to Remove It

This article has been created in order to best explain what is the Gen:Variant.Symmi virus and provide you with the necessary methods on how to remove it completely from your computer.

A Trojan horse, that opens up a back door on the systems infected by it and allegedly downloads multiple malicious files via it was reported to be still active and infect a big portion of users. The Trojan is called Symmi and it may be replicated via multiple different methods and it may use a Zero Day bug to slither undetected on compromised computers. If you want to know more about and remove the Symmi virus, we strongly suggest that you read this article thoroughly.

Threat Summary

NameSymmi Trojan
TypeBrowser Hijacker
Short DescriptionAims to modify the settings on your web browser in order to get it to cause browser redirects and display different advertisements.
SymptomsYour web browser begins to display various types of online advertisements, which results in slowing down of your PC.
Distribution MethodBundled downloads. Web pages which may advertise it.
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User ExperienceJoin Our Forum to Discuss Symmi Trojan.

Trojan.Symmi – How Does It Infect

The Trojan.Symmi is the type of malware, created to slither past your computer’s defences undetected. For this to become a reality, however, we believe that an experienced coder may be behind this malware strain. To infect systems, Symmi Trojan may use the following infection tools:

  • Obfuscators to conceal the malicious code from antivirus software.
  • Zero-Day exploit kits to successfully infect computers using known Windows vulnerabilities.
  • Malware modules that help the virus perform different spyware and other malicious activities.

The main infection process behind the Symmi Trojan usually begins with one thing and one thing only – the infection file. This file may be spread across victim computers via a variety of different methods. One of those may be to spread the virus via e-mail spam campaigns. Such e-mails often carry malicious e-mail attachments that may pretend to be legitimate documents, such as:

  • Invoices.
  • Receipts.
  • Purchase confirmation documents.
  • Banking documents.
  • Suspicious activity reports on the victim’s account in Amazon, E-Bay, PayPal or even bank account.

In addition to this, another method that may be used to replicate malicious files, belonging to this ransomware virus has been reported to be by uploading the infection file of the Symmi Trojan on websites, where the file may pretend to be:

  • Crack.
  • Setup of a program.
  • Portable version of software.
  • Key generator.
  • License activation software.

Symmi Trojan – Analysis and Activity

When the Symmi Trojan Is started by victis, the malware was reported to drop the following files on the victimzed machine:

→ %UserProfile%\Application Data/Roaming/Microsoft/Windows/Start Menu/Programs/{RANDOM NAME}.exe
%Temp%\809188.bat

Once there, the Symmi Trojan may connect to the following IP address:

→89.46.102.43

The IP address may change with the new versions and updates of the Trojan’s code.

Once there, the Trojan.Symmi infection may perform the following activities on the computers It has already compromised;

  • Download malware, adware and other unwanted software without you even noticing.
  • Update itself and create copies of itself to avoid detection even if you believe you have removed it’s main malicious files.
  • Delete itself.

The Trojan.Symmi is the type of malware that is created with the primary idea to slither other viruses, like:

  • Spyware components.
  • Adware.
  • Ransomware.
  • Cryptocurrency miners.
  • Banking malware.
  • Rootkits.
  • Lockscreen malware.
  • Infostealer components.

But the Symmi Trojan may also perform other malicious activities by itself as well, like:

  • Take screenshots of your desktop.
  • Log the keystrokes you have typed.
  • Copy your passwords and usernames.
  • Read and write your documents and other files.
  • Control your web camera.

All of these activities make the Symmi Trojan a very dangerous threat that should be eliminated.

Remove Symmi Trojan from Your Computer

If you want to make sure that the Symmi Trojan is permanently removed from your Mac, we would strongly suggest that you follow the removal guide below. It will help you to remove all of the files of this virus by using the information in this article in combination with its removal steps. However, since the Symmi Trojan may also download other files and malware on your computer, security experts strongly recommend to download and run a scan of your computer, using a particular anti-malware program, which is created to remove all the invasive and malicious objects from your PC and also ensure that your system remains protected against any infections that might occur in the future too.

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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.

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

How to Remove Symmi Trojan from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi Trojan from Mac OS X.


Step 1: Uninstall Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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 Symmi 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.


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