How to check a computer or an individual file online for viruses. Online antivirus - scan and treat your computer for viruses without installation

If the antivirus installed on your computer does not detect anything suspicious, but the symptoms are obvious (freezes, strange running processes, autorun.inf appearing on flash drives, etc.), a “disposable antivirus” is necessary. It's easy to use - just download from the link and run it. In this case, during the scan, it is advisable to disable the antivirus that is installed on a permanent basis.

Advantages of disposable antiviruses

1. Free. For home use, almost all one-time antiviruses are free.

Flaws

1. They are not able to protect your computer all the time (there is no module for constant protection) and there is no update of the anti-virus databases.

2. You have to download it again every time so that such an antivirus detects new viruses.

Dr.Web CureIt!

Dr.Web CureIt!- a good one-time antivirus. Knows how to fight running viruses (does not allow itself to be killed during scanning).

HerdProtect

An online antivirus that scans all computer files using 68 antivirus databases. I explained how to use it in a separate article.

This is a good option if you have unlimited internet.

Minus: does not know how to treat infected files.

Plus: You don’t need to download it again to check, the databases are always fresh.

Kaspersky Virus Removal Tool

ESET Online Scanner

Plus Online scanner - no need to worry about downloading new versions with fresh databases. Just open the link or run esetsmartinstaller_rus.exe, the antivirus will start, update and scan your computer for viruses.

Norton Security Scan

Norton Security Scan- another one-time antivirus. You can download the interface in English, but simple.

Checks hard drives very quickly. Requires an Internet connection, just like Eset Online Scanner.

When you first start it, it creates a shortcut to itself, which is strange.

In general, it is better not to use it, since viruses common in Russia enter its database a little late. The newest winlockers (ransomware banners) are unlikely to be detected.

AVZ or Zaitsev Antivirus

Powerful antivirus utility (not a full-fledged antivirus!) for advanced users. There is not a sea of functions, but a whole ocean.

Supports updating anti-virus databases from the Internet. Unlike disposable antiviruses, it cannot treat infected *.exe files. It is more of an “anti-spyware” with many unique additional features. I will quote the words of the author AVZ: “ The utility is a direct analogue of the Trojan Hunter and LavaSoft Ad-aware 6 programs. The primary task of the program is to remove AdWare, SpyWare and Trojan programs.» The archive with the program contains help on all functions; it must be read carefully before the first launch.

One of the most important tasks of ensuring computer security. As a result of a virus scan, the spread of malicious code is detected, which for some reason was not detected by anti-malware protection.

Specialists Kaspersky Lab The tasks of checking for viruses and searching for vulnerabilities are highlighted:

Full check- thorough check of the entire system. By default, the following objects are checked: system memory; objects executed at system startup; system backup storage; postal databases; hard, removable and network drives.
Checking Important Areas- this is a check of those objects that are loaded when the operating system starts, as well as a check of system memory and boot sectors of the disk.
Custom scan- checking any object of the computer file system.
Search for vulnerabilities detects the presence of vulnerabilities in the software that can be used by attackers to distribute malicious objects and access personal data.

1. How to run a scan task from the main window

To run the scan from the main window Kaspersky Antivirus, follow these steps:

At the bottom of the main window, click the button Examination.
In the window Examination do the following:
- If you want to run full check, in the block Full check click on the button "start".
- If you want to run checking important areas, in the block Checking Important Areas click on the button "start".

When running a full scan, it is advisable to shut down other programs, since the scan can slow down the process of working with other software and the system as a whole.

2. How to run a scan task using a previously created shortcut

The scan task can be launched using a previously created shortcut.

To do this, double-click with the left mouse button on the scan task shortcut. The progress of the task will be displayed in the window that opens Task Manager.

3. View scan results

In the main window Kaspersky Antivirus information is displayed when the scan task was stopped or completed. Indicating the time is also a hyperlink to go to the window Detailed report.

The detailed report displays information about the start, stop, or completion of the scan task and a list of threats found.

When you select a threat, a description of this threat will be displayed at the bottom of the window.

Information about the verification process and result can be found in the window

Hello! There are a lot of problems that arise on computers associated with various viruses and malware. And more and more often questions appear on the blog like I do everything according to the instructions, but nothing works, and when we start to figure it out, it turns out that often the problem is that the computer is full of all sorts of different viruses. And they, as a rule, create all sorts of problems and errors.

Therefore, I decided to write an article about how you can quickly scan your computer for viruses without even installing an antivirus. The only thing you need is an internet connection. I'll tell you how to use online scanner ESET Online Scanner You can scan your computer for various types of threats.

I think you know that an antivirus should always be installed on your computer, even a free one. You also need to update anti-virus databases from time to time, which become outdated very quickly. But you can only install one antivirus on a computer, and of course it will not be able to provide one hundred percent protection against viruses.

Therefore, if you have some kind of problem, and you suspect that a virus is to blame for this problem, then you should scan your computer with other antiviruses, or antivirus utilities, such as.

As I already said, you cannot install several antiviruses on your computer at the same time, and installing and uninstalling them one by one is also not a good idea. Therefore, ESET has created a service with which you can scan your computer for viruses without even installing an antivirus program, and we don’t need to create it either, although this is another good way to remove viruses.

We just go to the site, launch the scanner and wait for the antivirus to check everything. This method has its advantages, for example, the scanner always uses the latest anti-virus databases. But if you have ESET NOD32 antivirus installed, then I think there will be little benefit from the ESET Online Scanner. It’s just the same company, and both the online scanner and the regular version of the antivirus use the same databases.

Checking your computer for viruses without installing an antivirus

Open Internet Explorer. Yes, yes, everything is correct, it must come in handy at least once :).

We go to the site and click “Launch ESET Online Scanner”, you can also read about the advantages and system requirements of the ESET Online Scanner service.

A window with a license agreement will appear, check the box, thereby agreeing to the license agreement and click “Start”.

Install the add-on. Click on the active area in the window and select “Install this add-on for all users on this computer”.

We confirm the installation.

Setting up the ESET Online Scanner. Leave a tick on “Remove detected threats” and you can check the box “Scan archives”, the verification process will take longer, but the result will be better. Click “Start”.

In this article we will learn and answer the question of how to check your computer for viruses; several programs will help us with this. I want to analyze and go through the topic of checking for viruses in more detail, but again without installing antiviruses, but only downloaded repositories.

The best methods for checking your computer for viruses

In total, I came up with three worthy tools:

EsetNod 32.
Kaspesky.
Dr.WebCurelt.

Below we will analyze each in detail.

I'll write in advance while loading, or during the time, there is no point in running the computer (such methods also exist), they are not very effective due to the fact that many files simply cannot be extracted.

Esetnod 32 - checking your computer without antivirus

First comes Esetnod32. I liked it, but see my choice below:

Viruses really slow down your computer, as do large website images that can be used.

Easy to use, no tricks required.
In Russian.
Works in the background.
Does not interfere with the main antivirus.

Let's move on to the analysis, the online antivirus website at www.esetnod32.ru, then look at the screenshot.

Click on the “Launch ESET Online Scanner” button, which will open a new window in the browser with the following instructions.

Manufacturers cannot just give you the product, and they ask you for your email address, fill it in and click “launch”.

Then the system warns us that this is a super program and it fast deletes everything in the world, click “run”. If you are working in a browser other than internet explorer, you will have to download a file weighing 2.7 MB. If you access the site from IE, such a window will not appear. In any case, click “download ESET Online Scanner”.

Then the trivial function of approving the license agreement. We read everything, if we agree, check the box and start.

There are several verification options, I settled on those described in the screenshot below. I unchecked the standard checkbox to immediately remove malicious files.

That's all with ESET, the check will be long, it will take a lot of time to dig through my 622 gigabytes. Wait for the work to finish and report whether there is a threats or not (I found 13, when the rest are from article 2-3).

Kaspersky Virus Removal Tool - scans for the presence and removal of Trojans

In second place I put Kaspersky Virus Removal Tool, it is good at searching for and removing Trojans in files. This is a cool and fast scanner, it works fast, free, without installation, and based on the principle of cloud scanning.

Cloud scanning is a popular feature lately. It does not require the user to install the program, because it is installed in the cloud, and the user is given only the exe file itself, that is, the one that launches it.

In general, we need to go to the Kaspersky website and download.

Then the initialization process will begin, the software communicates with the cloud and downloads the necessary data.

And the final thing is to click on the “start verification” button.

Based on the results of the scan, you will be given either an empty list or a list of threats. But you must answer the question of what to do with the files yourself, so look carefully, and if there are any suspicious ones, delete them.

This is where Kaspersky is finished, let's move on to the next one.

Dr.Web Curelt - looks at the system completely

Last on the list, but not least, dr.web curelt immediately checks the entire system on the computer. The famous Doctor Web, go to the website drweb.ru and look at the screen.

Page of this particular tool, click “continue”.

A new page will open, which warns that the free version will send reports to the server, but this will not affect you in any way. Check both boxes.

After the end there will be only one option - to neutralize it.

I am again surprised by the speed of Dr. Web. I found one file, this is the host. I don’t know why, but the Internet connection file seemed suspicious, I neutralized it, because I know that it is updated every time it is loaded. All is clear.

Another tip is to download these three programs to an external drive. If necessary, check your computer for viruses from a flash drive or using an external hard drive.

conclusions

Of all of them, I liked the last one, simply and quickly, it answers the question of how to check a computer for viruses and neutralize them. I wanted to choose the best of the best, I needed results and my choice for dr.web.

Bottom line, today we learned and answered the question of how to check a computer for viruses, three programs helped with this:

Dr.WebCurelt.
Kaspersky Virus Removal Tool.
Esetnod32.

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