The virus is a malicious program, which aims to harm the user's computer, or data stored on it. There are many types of viruses, but on our website we discuss only some of them. Firstly, one of the most dangerous types of unwanted programs called ransomware. These viruses are involved in extortion, penetrating the user's computer and performing some action (file encryption, blocking the screen, etc.), and then demand money for the abolition of this act. Secondly the Trojans, which can be used for various purposes, such as espionage, collecting personal information, steal passwords, and more. We'll tell you how to get rid of these types of viruses to completely clean your computer, and protect it from future infections.

 

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Zeus virus removal

How to remove Zeus virus

 

Zeus virus example

What is Zeus virus

Zeus is a Trojan virus that has made a lot of noise since 2007. The greatest damage it caused to the financial systems of banks. Zeus is a malicious program to steal data. Experts on cybersecurity called it "a convenient, effective and universal technological masterpiece". The virus was embedded in the operating system, stealing data such as PIN-codes, passwords, logins - everything that can open access to the victim's electronic account. In the future, Zeus transferred money to other accounts on behalf of the user. Infection occurred through all sorts of letters and notifications. After infection, the virus acted as a keylogger - tracked and transferred all the actions of the owner of the computer, including the introduction of characters from the keyboard and the mouse action. Having received all the necessary information, Zeus used this data to steal money. The attack was inconspicuous, and completely on behalf of the user. Therefore, many accountants of large companies were dismissed for erroneous suspicion of assistance. The bank authorization system, consisting at that time of two levels of protection, was powerless, as well as one-time admissions for entry, and authorization tokens. In the same way, the virus can transparently change the addresses of the sites through its advertising banners to its infected ones, which may even look similar to the original sites. In the algorithms of the virus, there is also a one-time fixed amount for withdrawals, the size of which will not raise suspicion among automatic banking systems. If the user himself tries to access his account, he will be redirected to a fake bank request form. There is also a version of this virus for mobile devices.

Evolution of the virus

The period from 2006 to 2007 is the years of the emergence of the Zeus virus. Then another 22-year-old Russian Eugene Bogachev created his creation and gradually promoted it among his entourage. The creator of the virus was able to achieve the introduction of his brainchild through links-traps in social networks, false notifications about updates, and even with the false signature of anti-virus databases from Kaspersky. For the first time a virus of this type could infect a computer through a social network, including through Facebook. On the verge of impudence was a message hidden in Zeus files, in which the creator thanked the developers of Kaspersky Anti-Virus and Avira for the vulnerabilities.

 

2009 was the heyday of the Zeus virus. Abroad, huge amounts of money began to disappear from banks, including from the national bank of Omaha and the American company First Data. The victims were infected through false notifications and emails, which opened not only allowed the virus to enter the system, but also infected through hidden spam and other computers. From now on, the notorious Zeus name hid a small group of hackers, expanding its influence further and further, Zeus itself built in Jabber Zeus, a tool for communication between hackers.

 

In 2010, an updated version of the virus appeared. Now there was a binding of the virus to its owner for further remote control. An updated version could buy anyone for an indiscreet amount of 10 thousand dollars.

 

2011 marked the next evolution of the virus. Now the command centers for the management of the program were many, and they all communicated among themselves. This further complicated the fight against the virus, since there was no such tight attachment to the single control center. The new version is called GameOver Zeus.
In the following years, the virus continued to steal huge amounts of money. In 2014, cyber security specialists were able to resist the attacks of the virus largely, but it was not completely eradicated, and in 2015, a reward of $ 3 million was awarded for information to catch the author of the virus.

How to remove Zeus virus

Virus removal occurs in two stages, first, you need to clean your browser, and secondly, remove the virus from the system.

Removing virus traces in the browser

First of all, this virus knocks down the browser settings. No matter which browser is used, one task is to get rid of the virus: reset browser settings to default values. The virus supersedes some parameters, it can be installed as a new extension for the browser. This can later be manifested by an abundance of advertising in the window, changing the start page, spontaneous transitions on the "fake" links.

For Google Chrome users

In this case, you must first find the browser folder. As a rule, it is located on the system local disk at Users\"Ваше имя пользователя"\AppData\Local\Google\Chrome\Application\User Data. In this folder there is a folder Default, which needs to be renamed to any other name (let it be a backup copy). After launching the browser, the folder will be created again, and all settings will be reset to their original settings.

 

1. Launch Google Chrome

2. Click Menu (Customize and control Google Chrome)

3. Select Settings

4. Scroll down and click Show advanced settings...

5. Click Reset settings

How to find Google Chrome Settings How to find Show advanced settings in Google Chrome How to Reset settings in Google Chrome

 

Mozilla Firefox

In the Firefox window, you must select "Help", then "ITroubleshooting information". There will be a button "Reset Firefox", after clicking it you should click "Finish".

 

1. Launch Mozilla Firefox

2. Click on Help on menu bar

3. Select Troubleshooting information

4. Click Reset Firefox...

How to find Mozilla Firefox Troubleshooting information How to launch Reset Firefox... Reset Mozilla Firefox: last step

 

For Internet Explorer users

Now very few people use this browser, but still: to reset the settings, click on "Tools" in the upper right part of the browser window (the gear icon) and click on "Browser property". In the window that appears, click the "Advanced" button "Reset" button and agree with the solution.

 

1. Launch Internet Explorer

2. Click Tools (You can press ALT+X on the keyboard)

3. Select Internet Options

4. Select Advanced tab

5. Click Reset... button

6. Put the tick near 'Delete personal settings' and click Reset

How to launch Internet Options in Internet Explorer How to find Advanced Internet Options in Internet Explorer How to reset Internet Explorer settings

 

For Opera users

As in the case of Google Chrome, the fastest way to make a complete reset in Opera can be by deleting the folder with the settings files. To do this, click on the "O" icon at the top left of the screen and click "About" in the appeared menu. In the "Paths" section, you can find the installation directory for the browser itself and its settings. Now that everything is known, you can delete the "Profile" and "Cache" folders.

Cleaning the system

Now that the browser is OK, you can completely close it and clean up the virus. Such well-known programs for combating malicious software such as Malwarebytes Anti Malware, Plumbytes Anti-Malware, Reimage, Rkill, HitmanPro, etc., will help in this. These utilities are well proven in the fight against this type of threats .

 

 

 

 

How to remove Android virus

How to remove Android Virus

The list of malicious applications that belongs to the group of Android viruses is still expanding. Security experts say that one from 10 applications is infected with an Android parasite. Unfortunately, many of these applications can be downloaded from Google Play. However, Google is making a lot of efforts to protect users and prevent malicious applications. The biggest source of infected programs are third-party web pages. Although this is not the only way how an Android virus can infect a device.

Android virus infecting ways

Android virus is still distributed through third-party applications, which must be installed on the phone manually. However, the new methods used to spread this threat began to spread around today, you can get infected by clicking on the malicious link. In most cases, people upload this threat to their devices in conjunction with unlicensed or experimental applications that are actively promoted on Google Play and other similar places.

 

In February 2016, the Android version of the virus spread through text messages and illegal connections. The most dangerous versions of the threat are interested in obtaining personal information about the victim, and often this information includes credit cards, account information, logins and passwords. Other options lead to less damage, such as distributing a contact list of victims, recording conversations, delivering advertisements, initiating redirection to various sites, or infecting devices with other threats.

 

If your system is slowed by suspicious notifications, redirects and surprisingly high phone bills, you need to check the device for threats, because these symptoms are the main signs of your infection.

 

In addition, you should pay attention to signs such as constant hangs of your device. If your phone or other Android device started to hang and does not function when you browse the Internet, you must install the Android antivirus and check them.

How to remove Android virus

If you think that the Android virus is already hiding in your device, we strongly recommend that you scan it with antivirus software. Sometimes viruses block software to avoid being deleted. In this case, you need to restart your Android device in safe mode, before running Android antivirus:

 

  • Locate the power button and hold it for a few seconds until you see the menu. Select off.
  • If you see a window prompting you to restart your Android in Safe Mode, select OK.

 

If this does not work, just turn off your device and turn it on. When it turns on, try to press and hold down the menu button, decrease the volume or increase the volume together to enter safe mode.

 

You can also try to remove the Android virus manually by deleting the malicious application. However, you must be very careful when trying to do this, because you can delete useful files and applications. To manually uninstall Android virus, please follow these steps:

 

  • Restart your device in safe mode using the steps above.
  • In safe mode, go to Settings. There, click on the application or application manager (depending on your device, it may be different).
  • Then find malicious applications and delete them all.

 

We also recommend turning off the option that allows you to install applications that belong to unknown resources. To do this, go to Settings -> Security. There, turn this option off.

 

 

 

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