It often happens that when we regularly use a flash drive or other portable storage device, we put our computer at risk.
This is especially dangerous when connecting someone else's USB device, the contents of which we can only guess at. Thus, the likelihood of infecting your PC with viruses is very high.

USB Disk Security (Russian version) – excellent software solution, which is capable of automatic mode check flash drive for viruses immediately after connecting it to the computer. Occupied volume RAM so small that the utility can be used on low-power PCs and laptops.

The program is fully compatible with most antiviruses, such as DrWeb, Kaspersky, Nod32, so no software failures or system conflicts will arise, and installation will take a matter of seconds, because the size of this software is small.

Main task USB utilities Disk Security is maximum online protection against most types of viruses and computer threats that are spread via USB drives, memory cards, portable hard drives and other external USB devices.

Now, you can check your computer for viruses online (when you connect a flash drive) without user intervention - everything happens automatically.

Attention: USB Disk Security is not a full-fledged antivirus, but merely complements its functions in relation to external drives and is activated the moment they are connected to the computer. In other words, to achieve reliable protection against hacking and infection of the system, you need to have a fully functioning antivirus with up-to-date databases and support for the firewall function. Only in this case can you be sure of the relative protection of your computer from viruses and other potentially unwanted software.

The highlight in Russian is its ability to check your computer for viruses online for free - the developers have created a special module that allows you to check suspicious sites for the presence of malware. In addition, the program allows you to adjust the list of startup applications and clean up garbage from memory. All this adds pluses to this wonderful and free utility. You can download the program for free from the official website, or you can use the link below (we have already done this for you).

All malicious files that intend to enter the user's computer will be isolated and disinfected from the virus.

Checking the flash drive for viruses is mandatory, but if doing it manually is inconvenient, we recommend installing USB Disk Security!

The most common cause of PC infection occurs due to an outdated anti-virus database that does not have information about new threats. USB DISK SECURITY has its own unique algorithm identifying malicious code sections, allowing you to quickly respond to security threats.

Every storage medium can become a haven for malware. As a result, you may lose valuable data and risk infecting your other devices. Therefore, it is better to get rid of all this as soon as possible. We will look further at how you can check and remove viruses from your drive.

Let's start by looking at the signs of viruses on a removable drive. The main ones are:

• files appeared with the name "autorun";
• files with the extension appeared ".tmp";
• appeared suspicious folders, For example, "TEMP" or "RECYCLER";
• The flash drive stopped opening;
• the drive cannot be removed;
• files have disappeared or turned into shortcuts.

In general, the media becomes slower to be detected by the computer, it takes longer for information to be copied onto it, and sometimes errors may occur. In most cases, it would be a good idea to check the computer to which the flash drive is connected.

To combat malware, it is best to use antivirus software. These can be either powerful combination products or simple, highly targeted utilities. We invite you to familiarize yourself with the best options.

Method 1: Avast! Free Antivirus

Today this antivirus is considered one of the most popular in the world, and for our purposes it is perfect. To use Avast! Free Antivirus to clean your USB drive, do the following:

You can also scan media via context menu. To do this, follow a number of simple steps:
Click on the flash drive right click and choose "Scan".


By default, Avasta is configured to automatically detect viruses on connected devices. The status of this function can be checked using the following path:

Settings / Components / File system screen settings / Scan on connection

Method 2: ESET NOD32 Smart Security

And this is an option with less load on the system, so it is often installed on laptops and tablets. To scan your removable drive for viruses using ESET NOD32 Smart Security, do the following:

You can set up automatic scanning when you connect a flash drive. To do this, follow the path

Settings / Additional settings/ Virus protection / Removable media

Method 3: Kaspersky Free

The free version of this antivirus will help you quickly scan any media. Instructions for using it to complete our task are as follows:

Don't forget to set up automatic scanning. To do this, go to settings and click "Examination". Here you can set the antivirus action when connecting a flash drive to a PC.


For reliable operation of each antivirus, do not forget about virus database updates. They usually happen automatically, but inexperienced users can cancel them or disable them altogether. This is not recommended at all.

Method 4: Malwarebytes

One of best utilities to detect viruses on computers and portable devices. Instructions for using Malwarebytes are as follows:

You can go the other way by simply right-clicking on the flash drive in "Computer" and selecting "Scan Malwarebytes".

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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 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.

USB Disk Security- This free application to provide complete protection against all kinds of malware distributed via removable USB drives. The application works with external hard drives, memory cards, digital cameras, flash media, as well as with other devices that can be connected via a USB connector. At the core work Disk Security is a special threat detection technology; Like an antivirus program, the utility is able to work in hidden mode, only making its existence known only if malware is detected.

Basically, a personal computer is infected with viruses at the time of use. global network Internet, a little less often this happens during the installation of a dubious or unverified program. An infected file can also enter a PC through the most ordinary flash drive.

When connecting an infected flash drive to a personal computer, the malicious software penetrates hard drive, and most importantly it happens so quickly that the installed antivirus programs They don’t always have time to react in time. Especially for such cases, it is necessary to use programs that can easily cope with this type of threat. Today Disk Security is one of the best programs to protect against infected files distributed via USB drives.

When viruses are detected, the application, depending on the settings, will delete or block them, thereby preventing them from executing automatic start. In addition, the utility is able to restore the system after it has been infected with malware, clean the hard drive of temporary files, prohibit copying files from the computer’s hard drive, check URLs, complete blocking of USB ports, startup control, forced scanning of hard drives.

The program is equipped with a convenient and simple user interface in Russian. The control panel is located on the left side of the working window, consisting of seven main points. The following sections deserve special attention: data protection, scanning and USB shield.

The last section is responsible for displaying a full report on all detected threats. You also need to take into account that the utility by default performs automatic removal any malicious application. So, in order to avoid deleting important documents, it is better to disable this option, for example, after deleting the boot file, your USB drive will not be able to start. After disabling, Disk Security will act as follows - it will automatically move the infected file to quarantine or simply mark it.

In addition to tools for automatically checking flash media, the “Scanning” section is equipped with a vaccination function. Vaccination can be carried out both on removable media and on the actual personal computer. In this case, a special file, which prevents some malicious applications from running. If desired, vaccination can be turned off.

The “Data Protection” section is able to provide devices with higher protection; for example, you can set a ban on moving data from the computer to a memory card or even block access to the PC through USB port. To close access, you will need to restart the computer, only after this the settings will take effect.

Key features of USB Disk Security:

• Perform a more thorough scan external drives. If malware is detected, it is either deleted or quarantined.
• Availability of a resident anti-virus scanner that is triggered when a new one is connected USB media. Without making changes to the settings, infected files will be automatically deleted.
• If necessary, you can completely disable automatic startup on your PC.
• When using the utility, you can view the content without the risk of infecting your personal computer.
• Sites are scanned for infected applications. The following services are used during the scan: Trend Micro, McAfee, VirusTotal, Symantec and Google.
• Search service linkzb.com provides the opportunity safe use Internet.
• The application is able to prevent unauthorized USB connection media to PC.
• Blocking the copying of unauthorized data to USB is done by using the Access Control tool.
• Using a system for cleaning temporary files, if the virus is located in temporary directories, it will be deleted immediately.
• You can set a password in the program settings.
• Full control over applications included in startup.
• Availability of a built-in system for restoring important directories in the registry that were affected by malware.
• You can download Disk Security completely free of charge.
• Works on Windows XP, 7 and 8.
• Automatically checks for updates.
• The application does not need to update the virus database, since it does not work like a standard anti-virus program.
• Due to its small size, the utility can be installed even on a weak personal computer.
• Seems to be fully compatible with many modern antivirus programs.
• Using a multilingual interface, a total of 12 languages ​​are available.

USB Disk Security is a simple and effective program to use to provide complete protection against malware distributed through removable media.

This is always the case with security. It’s worth relaxing and, having chatted with a friend, you insert his flash drive into your well-functioning computer, and when asked by Kaspersky - should we check this flash drive, you lightheartedly answer - no, no... And then you get entertainment for the whole weekend...

And even more often there is another situation - when you have to insert your flash drive into someone else's computer. This is not necessarily the computer of friends, now you can pick up a virus in a photo printing studio, and even at the tax office...

In this article I will tell you how to protect your computer and flash drive from viruses without additional programs.

You will learn 3 high-quality, time-tested methods that save you in most cases.

Do not go into the registry if you have never done this and have little idea of ​​the difference between a section and a parameter, and how parameters are created and their values ​​are changed!

1. Protect your computer from viruses on a flash drive. Disable autoloading.

Let's start by first protecting your computer from infected flash drives. You never know where we inserted our own flash drive, or someone came to us with an unknown flash drive...

To reliably protect your computer from viruses on USB flash drives, it is enough to disable autoloading (autorun) on all drives connected to the computer. For this you can use special programs(Anti autorun), or make simple settings.

Anti-autorun is a program for protecting flash drives, memory cards, mp3-4 players and others removable media information from viruses.

All further actions done with administrator rights.

Ways to protect your computer from autostart on flash drives

1. Disable autorun in group policies

Open Local Group Policy Editor:

Start - Run (Win+R) - gpedit.msc or in the search bar start typing “group”

Computer Configuration - Administrative Templates - All Settings - Disable AutoPlay

Right click - Edit - Enable - All devices - Apply.

2. Disable autorun using the registry editor

You can also completely disable autorun from all drives using the Registry Editor.

Launch Registry Editor (Win+R). Open a thread

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

and in the value of the binary parameter " NoDriveTypeAutoRun", and instead of "95" (or "91") write "FF".

Valid key values:
0x1 - disable autorun on drives of unknown types
0x4 - disable autostart of removable devices
0x8 - disable autostart of non-removable devices
0x10 - disable autostart of network drives
0x20 - disable autorun of CD drives
0x40 - disable autorun of RAM disks
0x80 - disable autorun on drives of unknown types
0xFF - disable autorun for all disks.

In Windows XP, this key is missing by default (nor is the Explorer section itself), so you may need to create a corresponding Explorer section and parameter NoDriveTypeAutoRun, which controls device startup.

All changes to the registry take effect after a reboot.

3. Write to the script registry

The following method provides more advanced options for removing potentially dangerous system security holes, including those related to autorun.

Create a custom reg file (for example, named noautorun.reg) with the following content:

Windows Registry Editor Version 5.00
[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AutoplayHandlers\CancelAutoplay\Files]

«*.*»=»»

"NoDriveTypeAutoRun"=dword:000000ff
"NoDriveAutoRun"=dword:000000ff
"NoFolderOptions"=dword:00000000

"CheckedValue"=dword:00000001

@="@SYS:DoesNotExist"

"AutoRun"=dword:00000000

Then run this file, and answer “Yes” to the system’s question about making changes.

You can disable autorun temporarily (for example, if you do not have administrator rights), while you connect the device (flash drive) by holding down the key Shift. In this case, it is recommended to open the flash drive not through “My Computer” (otherwise autorun will work), but through Explorer.

2 Protect the flash drive using autorun.inf

Once upon a time, to protect a USB flash drive from viruses, it was considered sufficient to create an empty autorun.inf file on it and assign read-only rights to it. In this case, the virus could not create its own startup file there, since such a file already existed and had the appropriate attributes.

The essence of the method is to protect a special file that is responsible for automatically launching the program the moment the disk is connected to the system.

The file is called autorun.inf. Viruses love it.

The fact is that if you write a virus onto a flash drive and then specify a command in autorun.inf to run it, then malware will run EVERY TIME you connect the disk to the system.

So, to protect your flash drive, do the following:

Step 1. Open text editor“Notepad” (Start - Accessories - Notepad).

Step 2. Copy these lines and paste them into Notepad:

attrib -S -H -R -A autorun.*
del autorun.*
attrib -S -H -R -A recycler
rd "\\?\%~d0\recycler\" /s /q
attrib -S -H -R -A recycled
rd "\\?\%~d0\recycled\" /s /q
mkdir "\\?\%~d0\AUTORUN.INF\LPT3″
attrib +S +H +R +A %~d0\AUTORUN.INF /s /d
mkdir "\\?\%~d0\RECYCLED\LPT3″
attrib +S +H +R +A %~d0\RECYCLED /s /d
mkdir "\\?\%~d0\RECYCLER\LPT3″
attrib +S +H +R +A %~d0\RECYCLER /s /dattrib -s -h -r autorun.*
del autorun.*
mkdir %~d0AUTORUN.INF
mkdir "?%~d0AUTORUN.INF.."
attrib +s +h %~d0AUTORUN.INF

You can select text with the mouse, copy it to the clipboard, then switch to Notepad and execute the paste command.

What do these commands mean? How does it work?

First, we delete files or folders that the virus may have created, removing the security attributes from them.

This various types files named autorun, folders recycler and recycled, masquerading as a recycle bin.

Then we create a folder called Autorun.inf in a special way, containing a folder with the system name LPT3. Since the days of the unforgettable DOS, there have been a number of names that cannot be used to name files and folders with which any operations cannot be performed. An example of such reserved names: LPT1, LPT2, LPT3, PRN, CONF, con, nul, AUX, COM1…. and others. Try creating a folder, say PRN. You won't succeed. Ordinary using Windows the folder cannot be created. But there is a way. This is what is used in this script.
Line

mkdir "\\?\%~d0\autorun.inf\LPT3″ means:

mkdir- command to create a directory.
\\?\ - this is exactly what helps to create a folder with a reserved system name.
%~d0\- designation of a specific directory.

If you specify f:\ instead, then you can run the script from anywhere; it will create it on the f: drive.
autorun.inf and LPT3 are the names of the directories that will be created.

By the way, you can delete this folder in the same way, but there is no other way. If you want to delete, run on the command line:

rmdir\\?\f:\autorun.inf\,

where f: is the drive from which we delete the “autorun.inf” folder.

One more point: adding attributes to folders is additional protection.
Team attrib adds the following attributes to these folders: system, hidden, read-only, archive.

Step 3. Save the document to the USB flash drive as a file with the bat extension. Definitely on a flash drive and always with the bat extension. The name can be anything, for example: locker.bat

Step 4. Launch Explorer, go to the USB flash drive and run the file.

After launch, a folder will be created AUTORUN.INF with attributes that protect it from recording and hide it from prying eyes.

Now, if you insert a USB flash drive into an infected computer, the virus will not be able to change the startup file. Because instead of a file we have a folder, and it’s also hidden and write-protected. Nothing will work out for him.

But look: the virus can write itself to another location on the disk or change some file.

Therefore, insert a flash drive into your computer without fear and - I strongly recommend - check it for viruses. The time spent on checking is not commensurate with the losses that will occur after the system is infected with a virus.

Please note: our protection only prevents changes to the autorun file.

To protect another flash drive, perform a vaccination: copy the file locker.bat onto it and run it in Explorer.

3. Protect your flash drive from viruses.

The protection is very high quality, in my opinion, the best, it has been tested by time and viruses, it saves in 99% of cases!

A flash drive made using this method, after contact with an infectious laptop, or rather dozens of laptops, will remain crystal clear. So we do it without hesitation!

1. Check the file system type.

Go to “My Computer”, find our flash drive, right-click on it, then select “ Property" and we see the following picture:

If you, like me, have a file NTFS system, then move on to the next point. For those with Fat32, you need to change file system. This can only be done with formatting.

Right-click on the removable drive and select “Format” - NTFS - Quick Format.

I hope you are aware that formatting will delete all data from the flash drive.

2. Create a folder for data.

Create an empty folder on the flash drive. For example - 'Data'

3. We close access to the flash drive.

Again open the properties of the removable disk, tab .

We see the “Allow” column with checkmarks. This means that we have full access, we can create new files, delete, edit, and so on without any problems. Viruses are simply happy because of this and skillfully use their freedom.

Since we are categorically not satisfied with this matter, we click on the “Change” button. In the window that appears, uncheck all the checkboxes except “ List of folder contents" And " Reading" and click "Ok".

Thus, we blocked access to the flash drive. Now, if you want to create on it new folder or file (or copy), we will get an error. It will not work to perform the “send to” function removable disk" But the good news is that the virus will not be able to register itself on the flash drive in this situation.

4. Open access rights to the created folder

We need to return all rights to the folder that we created in the root of the flash drive, otherwise it will be impossible not only for viruses, but also for us to work with it. To do this, as usual, right-click on the folder and “Properties” - Edit, and check all the boxes in the “ Allow».

After clicking OK, the flash drive’s virus protection is installed.

All data will be stored in this folder and will have full access. You can always delete, create, copy, rename... or do anything with files and folders. But viruses (more precisely, as I said right away, not all, but 99% for sure) will not be able to do anything, since they automatically crawl into the root folder.

Remember that it is much easier to prevent a virus from getting onto a flash drive than to repair the damage later.