Submitting a suspicious file for analysis. We check the computer for viruses online. Principles of Kaspersky Virus Removal Tool

Despite the fact that online antivirus services advertise themselves as tools without the need to download and install, this is not entirely true. One way or another, but the user will have to organize access to files.

This means that you need to install some minimal software on your machine, without which you will not be able to check. They are the ones who contact the anti-virus database of their own website. Since this operation is performed online, it is conditionally referred to as an online check.

How is checking for malicious content performed?

The installation and verification algorithm is not particularly unique and for everyone it consists of the following steps:

downloading to your home computer the minimum required program files necessary for communication with the current database during the check;
installation (installation) of the program;
computer check;
report on the results.

The most famous antivirus components for online scanning

Kaspersky Security Scan

For a long time, according to the ratings, Kaspersky Anti-Virus was in the lead in terms of quality of work. Easy to use and affordable. To check it with the proposed free utility called Kaspersky Security Scan, you must first download it from the official website http://www.kaspersky.com/ by clicking on the link to the "Free utilities" tab. A screen with a complete list of all free offers from Kaspersky Lab will open.

When you click on the Kaspersky Security Scan tab, you will be redirected to the download page.

After saving the required file (be sure to remember the folder where the utility was loaded) start the installation by clicking on the file.

Perform a full installation if you are unsure of your knowledge of the settings.

You can refuse to install the Yandex browser, which will be prompted to do in the next dialog box.

Choose the check, in the image it is indicated by arrow 1.

It will take some time to download the program, within 10 minutes. And then you can start with a check (arrow 2), in each of the subsequent windows, select the button corresponding to the task.

The scan report will be presented in the form of a scoreboard, which indicates the number of scanned objects, as well as the number and description of detected threats.

If malicious files were found, you should click "Search for a solution" and follow the instructions depending on the nature of the detected threats. The fact that the utility does not destroy malicious programs on its own, but only points to them, will allow you to manually sort and save the necessary information.

Benefits of Kaspersky Security Scan:

it is important that the utility does not conflict with programs from other manufacturers that are already running on the machine being scanned;
it is a Russian-language program, so it is easy for users of the ru zone to understand it.

The closest brother of the Kaspersky antivirus program, claiming to be the leader in the rating, is BitDefender QuickScan (working link http://quickscan.bitdefender.com/). Abroad, it is considered the best online helper in virus detection. To install it, you need to click on the "Scan now" button on the official website of this anti-virus service.

A special extension for the browser in which you are working will be installed on your computer with your consent. This process takes much less time than installing Kaspersky, and further scanning is much shorter. This is because BitDefender QuickScan does not analyze the entire computer system in detail. Only currently active threats.

According to user reviews, the program may conflict with existing antivirus programs on the computer or indicate problems in their work. This utility can suit those who are familiar with the English language to understand additional features, sevets, recommendations.

Longtime friend and assistant of computer scientists - NOD32 antivirus

Another "antivirus" with a Russian-language interface is the good old NOD32. Rather, a scanner from ESET. To download from the main page of the company's portal (https://www.esetnod32.ru/), follow the link "Online scanner" at the bottom of the screen, as indicated by the arrow in the picture.

You can start downloading after entering your e-mail. Despite the instructions on the site that registration is not required, you will have to enter your email address, otherwise you will not be able to go further.

Virus scanning is launched by Internet Explorer without additional installation, but for others, the service will offer to download and install Smart Installer.

Scanning a computer is not instantaneous, it can take a long time, its progress and results can be monitored in the active window of the program.

The advantages of NOD32 include the use of heuristic analysis. This means that using the available data from previous scans, the program can calculate previously unknown viruses by analogy with those that have already been detected. Found problem files will not be deleted if you uncheck the "Delete detected threats" button during configuration.

Panda ActiveScan and HouseCall

Antivirus program Panda ActiveScan (http://www.pandasecurity.com/activescan/index/), which allows you to get rid of viruses without installing a full-fledged product, performs a cloud scan in Internet Explorer (only in it) without installing it on your computer.

HouseCall offers free content analysis and search for spyware and viruses.

After accepting the license agreement, which, by the way, is in English, the ScanNow button will become available and you can start checking the contents of your computer. The setup offers the choice of either a full check or a quick analysis of the main sectors. HouseCall allows you to disinfect and remove detected viruses from the scanned computer.

The program is "delicate": it does not leave any changes on the computer, which is its additional advantage.

Fans of the popular Microsoft software can use its product: Safety Scanner (http://www.microsoft.com/security/scanner/ru-ru/), designed for a one-time computer scan. The program is valid for 10 days, after which you will have to download the updated version.

How to scan files and sites for viruses online

It is easy to check individual files using services such as Dr. Web or VirusTotal. To do this, upload the suspicious file to the site and follow the instructions. This is useful if you need to analyze a small amount of information.

Online scanning of suspicious files and websites for viruses using Dr.Web

The Dr.Web curing utility is very popular. With its help, you can check all the information on your computer for viruses and malware. Individual files, as well as entire sites, are checked online, which can be done by following the link http://online.drweb.com. Enter the path to the file on your computer, or enter the URL, click on check - and the service will give you a report.

As a result, the service will provide you with a report, where, in addition to information about the viruses found, you can find out almost all the statistics of the file.

To check the site for viruses, you first need to go to the appropriate tab, enter the portal address and start scanning.

The site is scanned a little longer than the file, as a result, you will be presented with a verification report. The "Clean site" message indicates that the site is clean, there are no threats.

Antivirus service VirusTotal.com presents VirusTotal Scanner - a program that requires installation on a computer.

The first thing that distributors of a boxed solution call it is the ability to check without additional file transfer to the network. It is enough to register the path to the file in the program window on the computer. The report is similar in form to the one on the VirusTotal website.

http://rsload.net/soft/security/11963-virustotalscanner.html) is suitable for operating systems Windows XP, 2003, Vista, 7, 8.x, 10 (32/64-bit). You can find and download the program on various resources.

As practice shows, using one, even a very understandable and intelligent antivirus program, is at least ineffective. According to network users, the best solution is to have an “antivirus” installed for permanent use on your computer, and be sure to update it regularly. Plus, periodically, especially if you suspect, check your unit additionally using the scanners and utilities described above.

It is important to remember that when choosing antivirus services, you should only refer to trusted sites, better - directly to the Internet representations of antivirus software developers. Each of them has their own official sites, from where it is easy to download the necessary information or program. Manufacturers of anti-virus "freeware" timely update databases, keeping them up to date, and sometimes have a fairly wide range of free or shareware services.

Not all users install an antivirus on their computer or laptop. Some - laziness, others - do not see the need for this. And when suddenly the PC starts to behave strangely (it glitches and slows down or there is an advertisement in the browser), then you can simply check the computer for viruses online and for free. Fortunately, there are plenty of options today.

Below are the 7 best antiviruses that can scan for viruses online. True, you won't be able to check your computer without downloading the installer. Virus scanning is performed online, but antivirus needs access to your files. Therefore, some of them are installed as a plug-in for the browser, and some as a small utility.

Kaspersky Security Scan - a powerful online virus scanner

A full-fledged antivirus is well known in Russia, and its "little brother" is also popular.

The program works in the "cloud", so you can quickly scan any PC or laptop for viruses online.

Its main advantages:

does not slow down Windows (which cannot be said about the full-fledged antivirus Kaspersky, which consumes a lot of resources during the scan);
does not conflict with other antiviruses installed on the computer;
does not delete found viruses, but only reports them (on the one hand, this is a plus, but on the other, you will have to delete them manually);
produces a detailed report.

Download the installer file from this link http://www.kaspersky.com/free-virus-scan.
Run the program.
Wait for the end of the check.

After that, you will only have to remove the viruses (if they were found).

BitDefender QuickScan - Fast online PC virus scan

Another way to clean your computer from viruses online is by using BitDefender QuickScan. It is considered to be very effective and has great success overseas. Approximately like our Kaspersky.

Cleaning your computer from viruses online is also easy. You just need:

Go to this link http://quickscan.bitdefender.com/.
Click on "Scan Now".
Install a browser plug-in through which the antivirus will gain access to your folders and files.
Wait until the end of the check.

The main advantage of BitDefender is its fast online virus scan. On average, it takes 1-2 minutes. On the one hand, this is cool, but on the other, what can he scan in such a short time?

Most likely, the online scanner checks the main list of the most common threats: system files, startup - i.e. those places where viruses mostly "live". The developers themselves say that checking the computer for viruses online is carried out in the cloud mode (on their servers), which is why it is performed so quickly.

ESET Online Scanner - efficiently scan your computer for viruses

The next way is using a free ESET product from the NOD32 developers. To start checking, follow this link.

It is recommended to scan your PC via Internet Explorer - in this case, the scan will be performed in a browser window. When using Chrome, Firefox or Opera, the user will have to download a small file, and the analysis of the PC will be performed in a separate program.

After downloading and running the file, you need to set the settings. For example, enable scanning of archives and potentially dangerous programs. You can also remove the checkbox in the "Delete threats" item so that the antivirus does not accidentally erase important files that, in its opinion, are infected. Then click the "Get Started" button.

ESET Online Scaner will update the databases, after which an online scan of your PC for viruses will begin.

a thorough system scan (on average it takes 40 minutes - depending on your internet speed and the size of your HDD);
detects any threats;
knows how to find malware, incl. in the registry;
performs heuristic analysis;
generates a complete report on the work performed.

Another plus is that the online scanner is automatically deleted after the end of the scan. That is, there will be no files left after it.

Thus, ESET Antivirus is perhaps the best way to clean your computer from viruses online. Its only drawback is the need for installation.

Panda Cloud Cleaner - online flash drive virus scan

Users are offered 4 versions to choose from:

standard;
portable (does not require installation);
for scanning a USB flash drive;
in ISO format (rescue boot disk for PC virus scan that won't turn on).

Which version to choose, decide for yourself. For example, if you want to check a USB flash drive for viruses online, then download the third installer on the developer's website.

Main advantages:

quick check (on average - 20-30 minutes);
detection of common threats;
effective online virus cleaning.

As in the previous case, the Panda also "self-destructs" after a successful check and treatment of viruses. That is, it is automatically deleted and does not leave behind files.

F-Secure Online Scanner - virus and spyware treatment

Another excellent antivirus that can scan your computer for viruses online. To start testing, go to the developers site and click on the "Run" button. After downloading and running the installer, a new window will open in which scanning of the laptop or PC will begin.

The main advantages of this antivirus:

fast scanning - on average it takes 10-15 minutes;
effective treatment of viruses and spyware utilities;
works even with antivirus installed on your PC.

Before starting the test, it is advisable to turn off "heavy" programs. This will help speed up the scanning process.

VirusTotal

All previous options had one common drawback - the need to download the installer. In this case, you can scan your computer for viruses online without installing any programs.

VirusTotal is a service from Google that can check any files on your PC. It can also scan websites for malicious utilities. The service is very easy to use:

Follow this link.
Specify the path to the file you want to crawl or the URL of any site.
Click the Check button.

Wait for the check to be performed, and then see the report.

You will not be able to check all documents on your computer through VirusTotal. He can scan sites and files separately. This option is suitable for those who, for example, downloaded a program and want to make sure that it is free of viruses before installing. For such cases, VirusTotal is best suited, because it does not need to be downloaded.

Dr.Web - effective file scanning for viruses

And the last way is through Doctor Web. He has a great service with which you can check individual files. For this:

Go to this site http://online.drweb.com/.
Click Browse and specify the path to the file you want to scan.
Click the "Check!" Button.

In this case, you can scan your computer for viruses online without installing Dr. Web. But, like VirusTotal, Doctor Web can scan only one file at a time.

A few words in conclusion

It sounds strange, but you cannot completely scan a laptop or computer and remove viruses online. The first 5 antiviruses require a small file to be installed. The question arises: isn't it easier to install the full version of the same Kaspersky or BitDefender? They have more features, plus provide real-time protection for your PC. In addition, many popular antiviruses have free versions.

The last 2 options are VirusTotal and Dr. Web - do not require installation, but check one file at a time. This is also not very convenient.

By the way, a computer or laptop can be infected not by viruses, but by malware. As a result, ads appear in the browser, third-party pages of unknown sites open, etc. In this case, antiviruses will not help; special software is required here.

Unfortunately, not every user has an antivirus on their computer device. Someone is lazy, but someone simply does not consider it a necessity. If suddenly the equipment starts to slow down or advertising blocks appear in the browser, you can check your computer for viruses online. Today there are several services that allow you to quickly scan your PC at any convenient time. Let's take a look at the best antiviruses and their features.

In fact, it is impossible to check the device without downloading the installer. Scanning is online, but the scanning program itself needs access to your files. So one part of the antivirus functions as a browser module, and the other as a small application. Let's also get acquainted with a couple of "helpers" that support online verification without downloading.

There are times when everything has been scanned, but nothing dangerous was found, and the device still does not work correctly (there are ad blocks on websites, it is impossible to open a page, etc.), most likely, it is necessary to remove the malware from the device. Before you can check your computer for viruses online for free, you need to know some features:

you will have to download an application that is not a full-fledged program, but has a special directory or connection to the cloud storage where it is located. Another method is to drop a suspicious object for verification directly onto the site;
such downloadable programs most often do not interfere with the installed full-fledged antivirus;
you should use only proven analysis methods, that is, take utilities directly from manufacturers. If the site contains third-party advertising, the resource is unsafe. Antivirus developers do not earn money from advertising, they simply sell their products, so they will not place other people's blocks on their own sites.

If everything is clear, you can start the process.

Perhaps, almost all users know this product. It allows you to effectively check the necessary materials for viruses. Its convenient service quickly analyzes specific objects. For this you need:

on the official resource select the "Review" item;
specify the path to the file that needs scanning;
click on the "Check!" (or Scan).

It works online efficiently and quickly, you don't need to spend a lot of time.

The tool belongs to the Google corporation, it helps to check various objects from a PC, as well as various resources on the Internet for the presence of worms, Trojans and other infected software. It is located on the official website, you just need to select the file that needs scanning. You can also specify there a link to a page that arouses suspicion (there is a link below "Check URL"). Click "Check".

After a while, a report will be sent. This is exactly the case when you check for free and without installing additional programs.

Easily scan your home computer for viruses online with ESET Online Scanner

This online scanner also does not need to be downloaded to a computer. It will be loaded as a software module that functions without an antivirus installer and uses the virus databases of the full ESET NOD32.

As stated on the website, it will easily detect all types of threats based on the latest versions of databases, as well as perform heuristic analysis of the content. After activating the product, you can adjust the necessary parameters, enable or disable the search for unnecessary applications on the PC, scan archives and other functions.

full system scan (it will take about forty minutes, it all depends on the speed of the Internet and the size of the disk);
detects any type of threat;
can find malware even in the registry;
makes heuristic analysis;
creates a detailed report on the results.

Another advantage is that the online product is automatically disposed of after the completion of the verification procedure, so it does not leave any files behind.

At first, Panda had a publicly available tool that runs directly in the browser. Currently, there is only a utility that loads its modules onto the computer (no need to be confused, it is not installed and does not affect other antiviruses). The principle of operation is similar to the previous product: anti-virus databases are loaded, and equipment testing for threats noted in these databases begins. Upon completion, a report on the "finds" will be drawn up (when you click on the arrow, all the detailed information about specific elements and the possibility of their deletion comes out).

It is worth remembering that the items that are located in the Unkonown Files and Cleaning Systems subsections do not always refer to viruses on the PC. The first item is used to store unknown files and strange registry entries for the program. The next one will be the possibility of clearing disk space from unnecessary objects. Experts advise using the portable version, because you don't need to install it. Among the disadvantages of this tool, one can single out only the lack of Russian-language support.

Advantages:

operational check (about half an hour);
identification of common threats;
highly effective online cleaning.

Panda is also capable of "self-destructing" after it checks and disinfects files. So it will automatically be deleted, leaving nothing behind.

Another service that allows you to perform web scanning for the presence of malware, trojans. Many users are already familiar with Trend Micro products. Utility available on the developer's site.

After launch, the download of various special files is activated, then you need to accept the points of the English-language license and click on the Scan Now button to start system testing. By clicking on the Settings link below this button, you can select specific objects for scanning, and also mark whether an accelerated analysis or a full check is required.

The program does not leave anything behind in the system. It also attracts bases from the Cloud, which helps to ensure a high level of utility reliability. In addition, HouseCol allows you to remove detected viruses from your PC. Among the main advantages are:

quick analysis - about fifteen minutes;
high-quality disposal of viruses, spyware;
functions even if an antivirus is already installed on the computer.

Before starting, you should deactivate "heavy" applications on the computer. This will speed up your testing.

Microsoft Safety Scanner

Microsoft has created their one-time checkout service - Microsoft Safety Scanner... The validity period of the product is ten days, after that you will have to download a fresh one, with corrected and supplemented databases.

There is also a newer instrument that has been named. Both services work and do a good job with their functions.

It is one of the most popular and powerful online virus scanners. Kaspersky quickly and highly efficiently checks your equipment, very common in Russia. The program operates in the cloud, so it is easy to check in real time. Main advantages:

does not affect the speed of Windows (unlike a full-fledged product, which consumes decent resources during the scan process);
without conflicts with other antiviruses that are on the PC;
does not eliminate the found threats, but simply notifies about them (for some this is a plus, while others are inconvenient to delete them manually by themselves);
presents a report with all the details.

The check is simple:

download setup file;
run the program;
waiting for the completion of the procedure;
remove viruses (if any).

As you can see, you can independently, without downloading software, scan your computer for viruses online. The developers have taken care of the users, so that everyone can choose something convenient and suitable for themselves. What product do you use?

Letter. Please tell us on your website about, for example, Kaspersky Virus Removal Tool or Kaspersky Security Scan, I think they deserve attention. I just had a dispute with a friend, he tells me that the best antivirus utility that works without installing on a computer is. I do not argue, and you often mention it in your articles, it actually finds and neutralizes malicious programs well, but I think the utilities from Kaspersky are no worse than those from Dr.Web. Kaspersky Lab even has a utility called TDSSKiller.exe, which detects and neutralizes malicious programs such as rootkits. On your site there is an article about, but not a word about the above utilities. Or do you think they are not effective against viruses. Max.

Letter # 2 I downloaded the Kaspersky Security Scan utility from Kaspersky, but it turns out that it does not remove viruses, but simply informs about threats and the state of your computer's security. I don’t understand what is the point in using it. Without a signature.
Letter # 3 Admin, help with advice. When scanning the computer for rootkits with the utility from Kaspersky TDSSKiller, it was found suspicious object, medium hazard - Service: sptd... The instructions for using the utility say: copy the suspicious object to quarantine and then send the files to Kaspersky Virus Lab or check for viruses on the VirusTotal.com website. In short, I copied the suspicious file to quarantine and wanted to check it on the VirusTotal.com website, but I can't find the quarantine itself, there is no information about this in the program settings, the Kaspersky forum was advised to carefully read the instructions for using the TDSSKiller program, but there is no such information in the instructions either. Without a signature.

Free Kaspersky utilities

In this article, we will download and apply in combat conditions free Kaspersky utilities- Kaspersky Virus Removal Tool, Kaspersky Security Scan, and TDSSKiller anti-rootkit utility. Let's get acquainted with the Kaspersky Rescue Disk. How everything works for Kaspersky (and it works), you will see for yourself and draw a conclusion.

Undoubtedly, it is worth carrying anti-virus utilities from Kaspersky on a USB flash drive and using them as needed in the fight against viruses. I have not written anything about these utilities just because there is simply not enough time.

All Kaspersky Lab products incorporate the latest developments in the field of anti-virus technologies, including new "cloud" technologies. Take, for example, Kaspersky Virus Removal Tool (AVPTool), a constantly updated free antivirus scanner. It should be used from time to time to scan your computer for malware. By scanning your computer, this utility neutralizes malicious programs on your computer: Trojans, Internet worms, rootkits, as well as spyware and adware. Kaspersky Virus Removal Tool can be launched in automatic and manual modes.

But it is important to know that this utility does not provide real-time protection for your computer, that is, Kaspersky Virus Removal Tool will not replace your regular antivirus, but only help it. Working on your computer, Kaspersky utilities do not conflict with the anti-virus software installed on your computer.

A very important note. You should know everything about all the utilities you use, so that the situation described in the second letter does not work out. The Kaspersky Security Scan utility does not actually remove viruses, but you still need to use it and now you will see how. We will check the performance of free Kaspersky utilities on the computer of my friend, when visiting one site that turned out to be malicious, he planted two Trojans for himself - in the Startup folders and the Temp folder.

All free utilities from Kaspersky can be downloaded on the official page http://www.kaspersky.com/virusscanner

Kaspersky Virus Removal Tool

Let's start with the Kaspersky Virus Removal Tool, analyze all its settings and check our computer for viruses.

Russian language and click Download, then download the program installer to our computer and run it.

We agree with the license agreement and click Get to work.

The free utility Kaspersky Virus Removal Tool can be run in the Automatic check, there is also a Manual Heal mode.

Before you press Run check, I advise you to go to the program settings. Option Inspection area, be sure to check My Documents, My Mail and most importantly Drive (C :)... Why?

When scanning an infected computer, I did not mark Disk (C :) in the settings and the Kaspersky Virus Removal Tool found only one virus in startup,
, but did not find the second malware - located in the Temp folder
... I had to rescan separately Drive (C :) and only after rescanning the virus was found.
Security level can be left in the middle

Option Action, you can check the box - Prompt on detection.

If the utility of the Kaspersky Virus Removal Tool detects a virus program on you, it will inform you to Disinfect, (if possible) Remove (recommended) or Skip.

So let's go, we press Run check

The first Trojan horse was found 8 minutes later.

The second Trojan, as I said, was found during the rescanning, so do not forget to mark the drive (C :) for scanning in the program settings. The utility immediately suggested removing the second malicious program.

As for the manual treatment. It takes place in three stages. Push Collecting information about the system,

the utility collects the information it needs, which is located in the avptool_sysinfo.zip file

Next, we register on the Kaspersky Lab forum in the Anti-Virus branch, ask your question and attach the avptool_sysinfo.zip archive, you should definitely get an answer, and sometimes experts may suggest you run a script that you need to copy into the Execute script window and click Run script.

http://support.kaspersky.com/6182

At the end of the utility's work, such a proposal is received. If you press the button Install protection, we will immediately go to the page with paid antivirus solutions of Kaspersky Lab.

Free utility Kaspersky Security Scan

Moving on to the second utility, Kaspersky Security Scan, we will scan the same infected computer with two viruses: in Startup and in the Temp folder.

The Kaspersky Security Scan utility does not remove viruses, but after scanning your computer it provides detailed information about the threats in your operating system and where they were detected, vulnerabilities and other problems. It all looks like this.
Go to the page again http://www.kaspersky.com/virusscanner, select Kaspersky Security Scan and click Download.

Download and run the utility. Again, I want to say that if Quick check you will not be satisfied, then choose Full check. In my case, the situation with the Quick Scan was repeated, it found only one virus in Startup.

C: \ Users \ Username \ AppData \ Roaming \ Microsoft \ Windows \ Start Menu \ Programs \ Startup
During a full scan, the utility found a second malicious program in temporary files
C: \ Users \ Username \ AppData \ Local \ Temp
Over time

The free utility Kaspersky Security Scan will give you the following report. Click on the arrow.

What is the state of the antivirus program on your computer? I got a comment because my antivirus program was disabled at the time the utility was running.
If the utility finds malware, it will give you their location.

Vulnerabilities

Other problems . Provides very important information about vulnerabilities related to the parameters of programs installed on your computer and the operating system itself. As you can see, the utility correctly noted on my computer the problems associated with autorun from various media, which need to be fixed.

Kaspersky Rescue Disk

The advantage of checking the operating system from the rescue boot disk over other utilities is that the malicious programs in the operating system are inoperable, one might say - they just lie on the hard disk.

Select Kaspersky Rescue Disk and click download.

Download the disk image in ISO format, burn it to a disc. If you don't know how to burn an ISO image to a blank CD or DVD, read our article.
So, after we have burned the image to a blank CD, we boot our computer from the Kaspersky Rescue Disk. Again, who doesn't know how, read our article.
In this window, to continue loading, you need to press any key on the keyboard.

We choose the language Russian, however, who needs what.

We accept the conditions - press key 1.

We choose Graphic mode.

Wait for the disks to mount.

Before us is the desktop of the Kaspersky Rescue Disk anti-virus disk. Let's take a look at the main features of the disk.
Click on Kaspersky Rescue Disk, the settings window opens, there is nothing difficult to manage here. We mark for virus scanning in the settings additionally the C: drive, or if you want all drives, but the check in this case will take a very long time. Click on the button Check objects.

There is a registry editor in Kaspersky Rescue Disk, which is very convenient, by the way, in the earlier versions of the disk it was not.

You can also use the File Manager if you need to move your files from one hard disk partition to another.

And with the built-in browser, you can go online.

TDSSKiller - protection against rootkits

Well, now the turn has come to the TDSSKiller utility, which can help you detect and neutralize rootkits on your computer. A rootkit is a program for hiding the presence of a malicious program in the operating system, helps an attacker to manage in a compromised Windows and hide the traces of his malicious activity by hiding destructive processes and the rootkit itself.

You can download it on the official website of the Kaspersky Lab, by the way, this link provides detailed instructions for using the utility. http://support.kaspersky.com/5353?el=88446 Click Download TDSSKiller.exe

Download and run.

If the program has displayed a window about the availability of an update for downloading, click on Download update.

By default, the utility is configured optimally and you do not need to change anything. We press Start check.

If the program after scanning displays such a window - Suspicious object, medium danger - Service: sptd, then this is not a problem. Service: sptd is a service of the Daemon tools floppy drive emulator program. You may ask - how to determine if it is scary or not?

TDSSKiller can detect the following suspicious services or files:
Hidden service - hidden key in the registry;
Blocked service- unavailable key in the registry;
Hidden file - a hidden file on the disk is hidden when enumerated in a standard way;
Locked file- the file on the disk is not available for opening in the standard way;
Replaced file- when reading, the fake content of the file is issued;
Rootkit.Win32.BackBoot.gen - suspected infected MBR boot record.

For a detailed analysis, Kaspersky Lab recommends copying the detected objects to quarantine by selecting the Copy to Quarantine action (the file will not be deleted !!!), then send the files to Kaspersky Virus Lab or VirusTotal.com for scanning.

The quarantine location is the root of the C: \ TDSSKiller_Quarantine drive
Open the site VirusTotal.com, then click Select file

Open and Check

Analysis of the sptd.sys file by VirusTotal.com showed that only one antivirus company, TrendMicro, classified the sptd.sys file as a PAK_Generic.009 virus.

At one time I established that this file is safe, but for complete confidence, our reader can send it to the Kaspersky Virus Lab.

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Many users of a computer with avast! Free Antivirus has become a weekly habit of antivirus scanner and Doctor Kaspersky Virus Removal Tool to download for free and apply for a one-time scan for malicious code.

The main functions of antivirus software include diagnostics and treatment against all, even the newest viruses, worms, rootkits, Trojans and other malicious programs, including spyware or adware. If you urgently need to download a free version of the antivirus for free, it makes sense to download this free Kaspersky antivirus for free.

Disposable antiviruses: download, use and uninstall

Instead of or together with the one-time use, Dr.Kaspersky can be used as an auxiliary and insuring antivirus tool. All you need to do is download the free Kaspersky Anti-Virus Removal Tool and just run it on your computer. You should not rely only on such utilities, since they do not provide permanent reliable protection in real online offline time. After scanning and disinfection, the computer system can be attacked by malware from the outside. Any medium or transmitter of information connected to a computer, e-mail (e-mail), the Internet (www, ftp, torrent) and others can serve as a source of threat. To protect against such threats, there are specialized antivirus programs, including powerful free antivirus software, for example, a free antivirus for free and which is easy to install, even for a computer "teapot".

Principles of Kaspersky Virus Removal Tool

The program works in the same way as other paid and free Kaspersky antiviruses both in automatic mode and according to manual settings. Naturally, the automatic mode allows the antivirus program to decide the fate of infected and sick files according to built-in algorithms. Malicious, infected and suspicious files are moved to the quarantine zone or deleted. If possible and necessary, treatment is usually prescribed and performed.

For a simple user, it is recommended to leave the default settings. Computer gurus and just curious computer users, if they have free time, can "play" with the settings. For preventive purposes, we recommend a weekly scan using the new version of the one-time anti-virus of Kaspersky VRTool (AVP Tool). To do this, you need to download Kaspersky Virus Removal Tool for free again. This program with built-in anti-virus databases is updated every day.

Free Kaspersky Anti-Virus can ...

Kaspersky Virus Removal Tool checks the computer's RAM and non-volatile memory against the latest anti-virus databases of Kaspersky Lab using a heuristic probabilistic analyzer. This free antivirus starts safely and runs efficiently on an infected system, although it is recommended that you restart your computer in "safe mode" and start scanning from there to be more reliable.

It is also worth remembering that the one-time KasperskyVRT cannot update the virus databases on its own, since all anti-virus databases are loaded as part of the program. Unlike permanent antiviruses, which are usually capable of loading up-to-date signatures of virus databases on their own, when using a one-time antivirus program, you need to download the free Kaspersky Virus Removal Tool again. Fortunately, there is always an opportunity to download a free antivirus for free without registration, and this program is updated daily, or even more often.

If permanent stationary anti-virus software is installed on the PC, for example avast! Free Antivirus, AVG AntiVirus Free or other system antivirus that runs constantly, then there will be no problems. The antivirus utility Kaspersky Virus Removal Tool (AVP Tool) does not conflict with the standard antivirus installed on the computer.