Fix SONAR.Cryptdefense!g4 Efficiently Via Free Scanner.
SONAR.Cryptdefense!g4 is yet another highly dangerous computer threats categorized as Trojan virus discovered on June 7, 2016 and update was found on June 7, 2016 5:27:20 PM. It is able to infect all Windows computer. Actually, SONAR.Cryptdefense!g4 is a heuristic detection that is used to detect known variants of Trojan.Cryptodefense family of threats. Trojan.Cryptodefense also known as Ransom.Cryptodefense is another highly dangerous computer threats which discovered on March 26, 2014 and update was later found on September 1, 2016 10:03:46 AM. However, on depth analysis malware researchers found that file associated with SONAR.Cryptdefense!g4 are too malicious and are responsible to cause a lots of issues.
As soon as SONAR.Cryptdefense!g4 comes inside the PC hides itself deeply and after executed successfully creates the following files into every folder containing files to be encrypted:
Next after the very Trojan virus creates the following registry entry in order to store path of all the encrypted files:
Now, it creates the following registry entries so that it automatically runs every time Windows starts:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"[RANDOM CHARACTERS]" =" C:\[RANDOM CHARACTERS]\[RANDOM CHARACTERS].exe"
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"[RANDOM CHARACTERS]" = "%AppData%\[RANDOM CHARACTERS].exe"
SONAR.Cryptdefense!g4 is capable to encrypt victims computer file and primarily it target the file with the extensions:-
xls, wpd, wb2, txt, tex, swf, doc, der, crt, cpp, cer, bmp, ava, ass, asp, js, py, pl, mp3, lua, key, jpg, hpp, gif, sql, RAW, ppt, png, pem, pdf, PAS, odt, obj, ps, cs, m, rm, eps, DTD, bay, avi, db, c, h, pdb, msg, mpg, rtf.
After its encrypted the victims files it display a text or HTML showing ransom demanding message that states the following: “ All files including videos, photos and documents on your computer are encrypted by CryptoDefense Software”. SONAR.Cryptdefense!g4 also takes screenshot of the desktop and uploads it to remote locations. Data are important anyway but you need not to make payment inspite try our Free Scanner tool an ultimate solution to remove SONAR.Cryptdefense!g4 from PC.
More Facts About SONAR.Cryptdefense!g4
A SONAR.Cryptdefense!g4 is generally shortened as SONAR.Cryptdefense!g4 which is a type of malware designed in order to provide unauthorized access to a user’s system. It is not capable of replicating themselves like virus but it can lead to viruses which is being installed on a machine since they allow the system to be controlled by the SONAR.Cryptdefense!g4 developer. SONAR.Cryptdefense!g4 continue to increase in popularity and nowadays majority of known malware found on the web is Trojan. It misrepresents itself to appear like an useful program and persuade a user to install it. It is generally spread through email attachment, freeware download, accessing of an unauthorized websites or from web browser. It may also get transferred into the system via a USB flash drive or any other external devices.
SONAR.Cryptdefense!g4 are not easily detectable by themselves but when a system appear to run slower due to heavy processor and network usage it is to understand that the system has been infected with a malware like Trojan. SONAR.Cryptdefense!g4 never attempt to inject themselves into the other files but propagate themselves. To eliminate it from the USB flash drive or from any external devices you will have to reformat your USB and removable devices.
Once it get installed inside the system it run the infected code and perform all the malicious functions in order to harm the system even without user’s knowledge. It unload the hidden programs and perform unauthorized access to other victim’s system. SONAR.Cryptdefense!g4 use to erase or overwrite the data on a system. It is capable of deactivating the anti-virus and Firewall programs. It may download and install other malicious files without user concern. It can steal information like bank details, cookies, search history or other important data like passwords. If you disable or uninstall it from your system then still it is capable of re-installing themselves on the system. It is such a dangerous program that it disable the task manager as well as control panel from the system.
So it is always suggested to remove it out from the system if it has been installed inside the system so as to reduce further damage to the system.
Major Symptoms of SONAR.Cryptdefense!g4 Virus Attack on PC
SONAR.Cryptdefense!g4 is an extremely perilous threat that generates various unavoidable commercial ads which can hamper normal functioning of the PC and modifies Internet browsers settings. It attaches itself to the web browsers like Chrome, Firefox, safari, IE and shows bunch of pop-up ads every time you open it. Most of the time infectious files of this threat hides itself in system’s background process so as to cover its identity from admin. Severity level of this worm will even cause system crash because it constantly downloads its supporting files. This virus additionally installs unwanted browser add-ons and plug-ins to your browser. In presence of this threat, the performance of your PC might degrade to large extent. SONAR.Cryptdefense!g4 could send you to some unsafe websites and advertisements that don’t seem to be trustworthy. Visiting its redirected sites could infect your PC with harmful malwares as this virus largely redirects you to phishing websites. Other awful threats are often come along with this virus. To being unseen from security programs, it deletes the windows registry items as well. Moreover, it will record your browsing history and transfer the collected data to cyber crooks. It typically displays ton of unreliable pop-ups, fake error messages, annoying ads and alerts. SONAR.Cryptdefense!g4 endlessly spreads malicious code in web browsers so they may simply interfere users on-line activity with the sole objective to get cash.
Top Sources of SONAR.Cryptdefense!g4 Virus Attack
If you are not careful enough while using your Computer then the SONAR.Cryptdefense!g4 can enter and infect the system through various sources. You should be aware of different entry points of virus program so that it can be stopped and the computer and its data can be prevented. The system is always at a great risk if it is connected to the Internet because there are numerous sites that can automatically insert the virus program just on a click of a button. When you download any unknown software then it may contain the SONAR.Cryptdefense!g4 along with it. So you must browse sites that are considered to be safe. There is a huge misconception that the virus can spread only in online mode but the truth is even if you have never used Internet on the computer it can still get infected. The sources are already infected computers, USB drives that carries malicious programs like the SONAR.Cryptdefense!g4. When you insert and transfer any data to your healthy PC it will surely get infected. These are some of the known sources that can inject the virus to your computer so you must be alert while performing any kind of data transfer that is happening either in the online or the offline mode.
Remove SONAR.Cryptdefense!g4 from Control Panel
Follow the below mentioned steps carefully in order to uninstall SONAR.Cryptdefense!g4 from your Windows computer system completely.
Steps to Remove SONAR.Cryptdefense!g4 from Windows XP, Vista & 7 Control Panel
From the bottom left corner of the screen click Start button.
Choose Control Panel and click on add or remove program.
Now select the suspicious application from the list of application and click on uninstall option.
In the end confirm the removal if asked.
Steps to Remove SONAR.Cryptdefense!g4 from Windows 8
Hover the mouse over the left side of your screen and wait for the icon to appear.
Now right click on the icon to get the list of programs.
In this step you will need to select Control Panel from the lists.
From Control Panel window, click on Uninstall program.
Uninstall this nasty threat from the list of application on your PC.
In the end click on Ok to conform the removal process.
Remove SONAR.Cryptdefense!g4 from Windows 10 Control Panel
First of all Click on Start Menu.
Go to Settings menu to see all contents.
Click on the System tab from all programs.
Now choose Apps and features from System tab.
Select the suspicious application from the list.
Click on Uninstall option to remove SONAR.Cryptdefense!g4
Manually Remove SONAR.Cryptdefense!g4 and Unwanted Toolbar or Extensions from the Browser
If SONAR.Cryptdefense!g4 has also infected your browser then you also need to remove extensions and add-ons from your infected browser.
Easy Step to Remove SONAR.Cryptdefense!g4 from Google Chrome
Open Chrome and Click the button at top left corner of browser.
Click on tool
Select Extensions and then from there select unwanted extensions
At last click on remove button to remove the extensions.
Restart the system.
Simple steps to remove SONAR.Cryptdefense!g4 from Internet Explorer
Click Tool Button and Select Manage Add-ons.
In the Manage Add-ons highlight extensions and toolbar having ‘Add-on Types’
Now makes sure all add-ons is selected under ‘show:’ drop down menu and From there select the toolbar which has to be removed.
Select Disable/Delete option.
A warn pop-up window may appear onto your PC screen stating about related services and add-ons will also be disabled. Then leave the items checked and click OK.
Click Close to dismiss the add-ons window and Restart the system.
Easy Steps to Remove SONAR.Cryptdefense!g4 from Mozilla Firefox
Clicks on tools menu.
From Tool menu you have to select Add-ons> Extensions.
Now you just have to select add-on entries related to the SONAR.Cryptdefense!g4
Restart your System.
Prevention Tips for SONAR.Cryptdefense!g4 Virus
The user can remove it with the help of SONAR.Cryptdefense!g4 Scanner. It is an ultimate solution which can make the infected computer threat free. This scanner is designed with advance technology that makes it capable to detect all threat from the computer very easily. It offers heuristic working strategies to its users and that is why it is considered as a most reliable tool. You can download and install this tool easily in your system and make it use to remove harmful worms. The best part of this software is its user-friendly interface. The user who does not have proper technical knowledge can also run this tool in their system. It is taking very less time to complete the threat scanning process. The manual process to remove SONAR.Cryptdefense!g4 from computer is somewhat risky process on the other side there is no any risk if you use virus scanner tool. It does not leaves any adverse effect on the computer performance and consumes very less system resource. This SONAR.Cryptdefense!g4 Scanner will also provide its trial version that can be used to see the virus attacks by scanning the PC, and when the user get satisfied and further go for its licensed version to remove all detected threats. The heuristic scanning algorithms of this tool is making it very powerful and thus it became able to deal with all the unwanted issues like PC performance degradation, pop-ups, fake alerts, browser redirection etc. The experts also recommend this SONAR.Cryptdefense!g4 Scanner.
Easy Guide to use SONAR.Cryptdefense!g4 Scanner
Step 1 : Download and install SONAR.Cryptdefense!g4 Scanner by following some its steps
Step 2 :After installation Click on “Scan computer” button and it start scanning
Step 3 :There is an inbuilt feature called “Help desk” you can get complete information regarding the infection which you have encountered in your system
Step 4 :Now click on “Remove all button” to remove all the found threats
Step 5 :After removing all the infection restart the computer
Guidelines to Take Care your PC from SONAR.Cryptdefense!g4
- It is better to take prevention before getting infected with virus. Here are some precaution which can prevent you from virus and malware.
- Always ignore to install suspected software.
- Always use a proper firewall in your system which prevent your system from access of malicious program.
- Avoid to click on unwanted pop-ups or malicious links while surfing the Internet
- Give your personal information to legitimate websites only
- Never try to open Spam or junk email attachments
- Keep your anti virus program updated
- Try to create an unique password for your online accounts
- Disable auto run and daily scan your computer
- Deploy DNS protection
By following these tips you can stay safe from virus and other infected programs easily.