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How to Remove SONAR.JavaJAR!g1 from Your Computer? (Working Removal Guides)

What is SONAR.JavaJAR!g1?

SONAR.JavaJAR!g1 is a nasty computer virus that belongs to the Trojan family. It is a malicious threat that can easily get inside the targeted computer and do major harm. It normally get inside the infected PC through fake updates, bundled freeware programs, spam emails, suspicious websites, peer to peer file sharing and infected USB device. Once installed on the compromised PC, this harmful threat will firstly disable the working anti-virus program and firewall security to avoid its detection and removal. SONAR.JavaJAR!g1 can also assign new registry entry codes to get started automatically whenever you boot your computer. This perilous Trojan infection can also get back into your system after removal by using those registry entries.

What is Trojan

SONAR.JavaJAR!g1 is able to hide deep in the system so as to avoid being detected and deleted. It inserts vicious files to registry editor and runs itself along with the Operating System. Meanwhile, this malware could drop many files or folders to eat up high system resources, which slows down the whole PC performance greatly. SONAR.JavaJAR!g1 will record your online habits and generate tons of charming and attracting advertisements. Your desktop and the visiting websites will be messed up totally.

If you accidentally click on any pop-up, you could be cheated out of money. Even, additional PC viruses or threats will take chance to enter and attack your machine. Hence it’s wise to remove SONAR.JavaJAR!g1 as soon as possible. The following post provides detailed steps to do you a favor.

Risks you are taking to have SONAR.JavaJAR!g1 on your computer.

1)It drags down your computer speed by consuming most of the system resource.
2)It will drop additional malware like rogue antivirus program Windows AntiBreach Helper, browser hijacker and spyware onto your computer since your computer has already been compromised.
3)It deletes and destroys files and data.
4)It may block you from the desktop and make your computer useless.
5)It installs backdoors so that remote hackers can access your computer remotely.
6)It may lead your personal account log in details stolen.
7)It turns off programs like firewall and antivirus programs.

Effective methods to get rid of SONAR.JavaJAR!g1:

Method one: Automatically remove SONAR.JavaJAR!g1 easily with SpyHunter.(Download Removal Tool)
Method two: Manually remove SONAR.JavaJAR!g1.

Detail instruction (please perform all the steps in correct order)

Method one: Automatically remove SONAR.JavaJAR!g1 easily with SpyHunter.
It is highly recommended to download SpyHunter on your computer if you have difficulty in manually SONAR.JavaJAR!g1. It is developed to help users to detect and delete the infection once found. Besides, it can repair the compromised system automatically and protect your PC against other potential threats in the future.

Step 1: Download SpyHunter on your computer with the following installation tutorials.


Step 2: The moment you accomplish the installation, run it and perform a full scan of your entire system to search for the rogue program.


Step 3: Please check the scan results and delete the rogue program from your computer.


Step 4: Don’t forget to restart your computer to apply all changes.

Method two: Manually remove SONAR.JavaJAR!g1

(1) Use the safe mode
Reboot your computer, press F8 to enter Windows Advanced Options Menu before Windows is launched, use the arrow keys to highlight Safe Mode with Networking, press Enter.


Reference video on How to Remove Windows Virus in Safe mode

(2) Stop the running process of SONAR.JavaJAR!g1 in Windows Task Manager.
Right click on the taskbar and select Start Task Manager (or press Ctrl+Shift+Esc), click Process tab, find and click on the related running process, and click End Process.


(3) Uninstall its related programs from your computer:
SONAR.JavaJAR!g1 may bring some unwanted programs, you should uninstall them all.
Start>> Control Panel >> Programs >> Programs and Features >> Find out the unwanted programs and Uninstall it.


(4) Reset Folder Options to find the hidden files.
Start >> Control Panel>> Tools >> Folder options >> view >> Show hidden files, folders, and drives >>OK


Find the files here, and delete them:

C:\windows\system32\drivers\ random
%AllUsersProfile%\Application Data\.dll
%AllUsersProfile%\Application Data\.exe
(5) Open Registry Editor and remove Trojan registry entries.
Attention: Removing registry entries mistakenly will lead to system crash. If you are not sure, leave it to professional tool.
Start >> input regedit in the search box >>open Registry Editor >>find the related date and remove them.


HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “” = “%AppData%\.exe”
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run “” = “%AppData%\.exe”


What Prevention Measures to be Taken to Avoid SONAR.JavaJAR!g1 Attacks

If today’s modern computer users gets a chance to rampant malware threats like SONAR.JavaJAR!g1, then they have to be abreast and retroactive with the upcoming situations. Below are some best prevention measures you can take to avoid such harmful spyware threats.

Only open spam or unknown emails after scanning it with security software.
Downloads stuffs like software, game, media files etc only from trustworthy sites and companies.
You should disable autorun.
Do scheduled scans of your whole computer.
Increase the security of your networks like LAN, WiFi etc.

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