Osiris Ransomware Description :-
Osiris Ransomware is a new face of the Locky ransomware which named after an Egyptian god. The authors of the Locky ransomware show a great interest in the ancient mythology, thus they name each variant after Norse gods such as Thor, Aesir or Odin. First of all, Osiris Ransomware was discovered on December 05, 2016 which appears to be an improved version and capable of bypassing the detection of several anti-virus programs.
It acts like a traditional ransomware which secretly invades into the PC and silently set itself up to the victim’s PC and starts to snoop the entire PC to targeted various file types. To encrypt the user’s stored files, it uses strong encryption algorithm using AES-128 and RSA-2048 encryption ciphers. It appends .osiris file extension at the end of the file and loses the original file name because it replaces with a set of symbols [8 symbols]–[4 symbols]–[4 symbols]–[8 random symbols]–[12 random symbols]. The first 16 symbols represent the ID of victim’s.
On completion of the encryption process, it adds a ransom note entitled as OSIRIS-9b28.html to each folder of the desktop. The note explains user that decryption is possible only with a special decryption key. To purchase the decryption key, you have to install Tor browser and visit a payment site. It just like the previous version of Locky ransomware which suggests buying the Locky Decryptor by paying 0.5-4 BTC. Do you know what is BTC? It is a virtual currency that demands almost all ransomware. But you should not pay the ransom amount because it only created to steal money and your confidential data. Rather than paying off ransom amount, you need to get rid of Osiris Ransomware.
How To Protect PC Against Osiris Ransomware?
Generally, Osiris Ransomware is distributed over the Windows PC by using obfuscated emails. Such time of emails contains a notorious .zip file attachment. Once you extract such a malicious mail attachments, it drops .vbs file on the PC. If the user opens such a files, then they simply activate the payload of such a ransomware infection. .vbs file usually connects to the online servers without asking for user’s permission and download it automatically. It activates itself without displaying the setups poor notifications in minutes. It can be delivered via several sophisticated methods. But you can avoid your PC from such an infection by taking some prevention tips which are as follows :-
- Do not open any attachments that come from the unknown senders.
- Avoid to click any suspicious or malicious links.
- Always choose Custom or Advanced installation mode in place of Typical or Custom mode.
- Install a trusted anti-spyware tool and update it regularly.
- Keep a backup of your stored data, so that you can recover data easily.
What To Do If Your PC Get Infected By Osiris Ransomware
The ransomware infection has been mainly designed with the purpose to scare users and trick their money. It take your files on hostage and demand ransom to return your important data. But now the question is what you can do when your system got infected by Osiris Ransomware virus? Here are some option that you can use to get rid of this nasty infection.
Don’t Panic – Well the first thing is Don’t panic and then completely check out your system for any working files. If you got any working files then copy it to USB drive.
Pay Ransom – Other option is you can pay the ransom and wait to get your files back. (really a bad option)
Use Backup – Clean you entire system files, remove the infection completely from your PC and restore your files with any backup.
Remove Infection – You can also delete Osiris Ransomware virus using malware removal tool and remove all the infected files. You can later recover all your data by using any data recovery tool. (In case you don’t have backup of your files.) – Recommended Method.
Reinstall Windows – The last option is reinstall your Windows OS. It will completely remove all your data as well as infection. You will get a completely new infection free PC.
How To Remove Osiris Ransomware Virus From Your PC
Step 1 – Boot your computer in Safe mode.
Step 2 – Remove the infected registry entry files.
- Click Windows Flag and R button together.
- Type “regedit” and click OK button
- Find and delete following entries.
HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain “Default_Page_URL”
Step 3 – Remove From msconfig
- Click Windows + R buttons simultaneously.
- Type msconfig and press Enter
- Go to Startup tab and uncheck all entries from unknown manufacturer.
Step 4 – Restart your computer normally.
Check your computer now. If the virus has gone then you can start using your computer. If the infection still remains then head to the next step.
Step 5 – System Restore
- Insert Windows installation disk to CD drive and restart your PC.
- While system startup, keep pressing F8 or F12 key to get boot options.
- Now select the boot from CD drive option to start your computer.
- Then after you will get the System Recovery Option on your screen.
- Select the System Restore option from the list.
- Choose a nearest system restore point when your PC was not infected.
- Now follow the option on your screen to Restore your computer.
Step-By-Step Removal Tips To Get Rid of Osiris Ransomware
If the above manual methods didn’t removed Osiris Ransomware virus then you have only option to remove infection using a malware removal tool. It is last and the only option that can easily and safely remove this nasty threat from your computer.
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