How to remove Gero virus and restore encrypted files

Guide how to delete Gero ransomware virus and decrypt files corrupted by ransomware. Effective antivirus and programs that can restore lost information.

Gero ransomware virus

Gero is the unwanted software infecting PC's mainly via Trojans and scam e-mails. Also, hackers use zero-day vulnerabilities to penetrate the computer, but big software vendors promptly correct them. After the infection, ransomware checks the PC memory to find the files to be cyphered and their rough cost. Nowadays, any modern ransomware is able to cypher video, audio, text and image information in all known extensions. Special attention is paid to businesslike files, since representatives of business are the priority objective for criminals. Ransomware encrypts only information, and doesn't spoil the programs, so that the victim can pay the ransom via his computer. The operation is made through famous AES and RSA algorithms, and it is so sophisticated that that it can't be bruteforced. Such complexity is the reason for unbelievable efficiency of this sort of viruses in last years: usual PC operator, even having a fairly good knowledge of the PC, won't ever be able to recover the data, and will have to pay ransom. The only manner to restore files is to hack the scammer's website and obtain the master key. Some experienced hackers can get encryption keys through faults in viruse's program code.

There is one common feature for all sorts of computer viruses: it's much simpler to prevent it than to cure it. It's sad to say, but 90% of users see the significance of PC knowledge only after ransomware infection. To shield your computer, you must remember these three elementary regulations:

    • Carefully study your mailbox, especially those messages that have attached files. The #1 pattern of fraud letters is the story about prize winning or package obtaining. Also you should be watchful with business correspondence, especially if the sender and the content is unknown. It is OK to take an interest and open the letter even if it's sent to the wrong address, but remember that a single click on the attached file can cost you lots of money, headache and time.
    • Do not admit any alterations to the PC, originating from strange software. If the laptop is polluted by ransomware, it will seek to remove all copies of the files, to lower the possibility of restoration. However removal of copies needs administrator rights and user's verification. The second of thinking before confirming the pop-up might save your information and your efforts.
    • Don't neglect the red flags that your hardware and software shows. Information encrypting is a complicated act that uses a large amount of computer resources. In few seconds after the infection, the CPU performance decreases, and the encryption process emerges in Process Manager. You might catch this moment and unplug the PC before data will be fully spoiled. This, if the PC is really infected, will save some of your files.

You should understand that deleting ransomware is only the, first turn, which is required for the normal operation of the computer. If you uninstall ransomware, you will not return the files instantly, it will demand more actions described in the following part. In case of ransomware we do not publish the manual deletion instruction, because its complexity and the probability of mistakes will be extremely high for average customer. We do not recommend you to eliminate ransomware manually, since it has numerous security mechanisms which will counteract you. The very effective ransomware protection manner is the deletion of data on the chance of file decryption or ransomware deletion attempt. This is extremely undesirable, and the following guide will assist you to deal with 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 steps, described in previous paragraph - it's time to decrypt the information. In fact, this is not literally decipherment, as the encryption algorithms used by scammers are very complex. Generally, to get back the data, you should seek assistance on anti-malware forums or from renowned malware fighters and AV program manufacturers. If you can't wait and are ready to get back the information by hand - here's the complete article on data recovery.

To restore information, follow the article about files decryption.

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