How to remove Arrow virus and restore encrypted files

The item is about Arrow virus which penetrates customers' computers around the world, and corrupts their files. Here we've assembled important info on Arrow's essence, and the uninstalling of Arrow from your PC. Furthermore, we'll tell you how to recover the corrupted information, if possible.

Arrow ransomware is a new part of dharma virus. It had penetrated thousands of laptops around the world through most effective method: scam messages with viral attachments. Also, scammers use zero-day vulnerabilities to take control over the computer, but big program developers promptly correct them. After the infection, the virus inspects the hard disc, defines the number of folders for encryption and their approximate price. Currently, any new ransomware knows how to cypher text, image, audio and video files in all known formats. Special attention is paid to businesslike documents, because representatives of business are the key target for hackers. All software in the system will be unaffected because scammers are interested only in information. The operation is made with the help of famous RSA and AES algorithms, and it is so sophisticated that that decipherment of files with no key is impossible. This is the root for impressive success of ransomware in last years: an ordinary user, even having a pretty good knowledge of the computer, won't ever be able to get back the files, and will be forced to pay ransom. The sole method to get back files is to find the scammer's website and get the encryption keys. Also there's a chance to retrieve encryption keys through faults in the code of the virus itself. When encrypting files, Arrow changes the extension of files to id-[random_numbers].[This email address is being protected from spambots. You need JavaScript enabled to view it.].arrow.

Arrow ransomware virus

The computer knowledge is quite substantial in our century, as it assists customer to protect the machine from computer viruses. Statistically, 90% of users understand the importance of computer literacy just after ransomware infection. To defend your workstation, you must understand these few elementary principles:

    • Be careful with the messages which contain something more than a message. The #1 template of fraud messages is the story about prize gaining or parcel earning. The other efficient type of these letters is a "business letters". summaries, Bills for goods or services, appeals, lawsuits and suchlike important files do not be sent accidentally, and you, as a minimum, should know the sender. In most of the cases it is a scam.
    • Monitor the performance of your PC. Information encryption is a intricate act that consumes a lot of computer resources. If you mention an abnormal reduction in laptop performance or see a suspicious string in the Process Manager, you can shut down the workstation, launch it in safe mode, and scan for viruses. These measures, in case of penetration, will protect some of your data.
    • Heed to the pop-up windows. If the workstation is penetrated by malware, it will try to delete the shadow copies of the data, to lower the possibility of restoration. The deletion of copies requires administrator rights and user's confirmation. Thus, if you do not confirm changes from a unknown software at the proper moment, you will keep the chances to decrypt all corrupted information free of charge.

Ransomware elimination isn't the happy end - it's just a one step from many until the total file recovery. If you get rid of ransomware, you won't get back the data instantly, it will take multiple measures written down in the "How to restore encrypted files" part. To deelete Arrow, you have to launch the computer at safe mode and check it via AV-tool. We do not recommend trying to uninstall the virus in manual mode, because it has different security mechanisms that will counteract you. The most effective ransomware protection technique is the uninstalling of files on the chance of file recovery or Arrow deletion attempt. This is very undesirable, and the following paragraph will assist you to avoid it.

Removal instruction

Step 1. Boot into Safe mode

Safe mode

Start -> Msconfig.exe

Safe mode. Step 1

On the tab Boot select Safe boot

Safe mode. Step 2

Step 2. Check Startup folder

Start -> Msconfig.exe ->Disable unknown programs in the Startup tab

Startup

Step 3. Check hosts file

Modify hosts file, that located in C:\Windows\System32\drivers\etc\ .

Hosts file.Step 1

Open the file with Notepad and delete suspicious strings.

Hosts file.Step 2

It has to look like this:

Hosts file.Step 3

Step 4. Scan the system with antiviral scanner

 

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Step 5. Disable Safe mode

Start -> Msconfig.exe ->Disable Safe boot in the Boot tab

Deactivate Safe mode

If you fulfilled all actions, mentioned in previous paragraph - it's time to decrypt the data. Actually, this is not about decipherment, as the encrypting algorithms used by scammers are extremely complicated. Usually, to restore the files, the user has to ask for help on targeted forums or from well-known malware researchers and antiviral program manufacturers. If you can't linger and are ready to restore the information by hand - here's the full article on data recovery.

To restore information, follow the article about files decryption.

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