How to remove Nemty Ransomware from your system
Transcription
How to remove Nemty Ransomware from your system
How to remove Nemty Ransomware from your system? Guide to Remove Nemty Ransomware Nemty Ransomware is the recent weapon in the arsenal of the gigantic Ransomware family. It is a high-risk Ransomware-infection that has been developed with a strong financial motive. It is currently spreading at an alarming rate via exposed Remote Desktop Connections. Once the system is infected, it searches every nook & corner of the system for the targeted files. When found, it employs a complex Encryption Algorithms to make encrypt the files & instantly makes its inaccessible. It renames the files by adding Nemty extension to the file names. Following the encryption of the targeted files, it drops a ransom-demanding note in all the existing folders that contain .Nemty files. This ransom-demanding note is in text format & named “NEMTY-DECRPYT.txt” The note suggests that the only way to restore the encrypted files is to contact the hackers & pay ransom amount. It further states that failing to co-operate with the hackers can lead to permanent loss of the encrypted data. The developers claim to restore the encrypted files, only if the victim agrees to follow the instructions given by the hackers. You may wonder about the authenticity of the claims made by hackers. Well, we suggest you not to contact the hackers. Analysis by the cyber security experts has revealed that victims that pay the ransom not always receive positive answer from the hackers. Hackers often avoid responding the victims after receiving the ransom amount. Therefore, victims should act smart & not let the hackers extort money from them. Wondering how can you stop Nemty Ransomware from infecting your system? Read on to learn how you can protect yourself from Ransomware & prevent your data from getting encrypted. Threat Summary Name Nemty Type Ransomware Category Malware Targeted OS Windows Symptoms It infiltrates your system with the motive to encrypt stored files. After successful encryption, the virus demands Ransom money to decrypt them. Damage You cannot open a locked file without paying the asked ransom. Additionally, it may increase the malicious payload in your system. Removal Down Download Removal Toolload Rdemoval Tool Threat Behavior of Nemty Ransomware Nemty Ransomware is the name of the recent threat to the computer users around the world. This brand-new addition to the gigantic family of Ransomware is spreading mainly through the exposed Remote Desktop Connections. While Remote Desktop Connections distribution technique is not new for Ransomware propagation, it is considered a more treacherous method when compared to phishing techniques. After gaining illicit access to the systems via RDP, the hackers get an unregulated entry to the targeted system to launch attacks & propagate wider distribution of malware without the user’s intervention. Once installed, Nemty crypto virus looks for certain targeted file extensions on the infected system. When found, it employs highly complex Encryption Methods like RAS (Rivest–Shamir–Adleman) & AES (Advanced Encryption Standard) to encrypt the files. These algorithms are also used to generate unique decryption keys for each targeted system. The encrypted are renamed by appending .Nemty Extension to the file-names. For example, a file named “presentation1.ppt” might be renamed as “presentation.ppt.nemty”. Detailed analysis has revealed that Nemty File virus also deletes the shadow copies for the encrypted files. Hence, it effectively removes the only way using which the victims could restore the encrypted files for free. In addition to that, it modifies the Windows Registry & primarily targets certain system files. It is capable of gathering personal information of the victim’s system such as Username, OS Version, and Computer ID & send it back to the hackers Details of the Ransom Note & Ransom Amount Demanded by Hackers Once the files are encrypted, .Nemty virus Ransomware drops a ransom note in all the existing folders that contain .Nemty files. This ransom note is a text file named as NEMTY-DECRYPT.txt. The note contains certain instructions for the victims for getting their data decrypted. It asks the victims to visit a payment portal hosted on a Tor Network, a dark web course designed for anonymous web surfing. Victims are required to pay 0.09981 Bitcoin (equivalent to $1,010.74) in exchange of the Nemty decryption tool & unique key. Failing to pay the ransom in the predefined time limit can lead to increase in the ransom amount by 50%. However, contacting the hackers & paying the ransom is not always a reliable way to recover .Nemty files. Studies have shown that hackers avoid responding the victims once the payments are received. Therefore, all the encouragements to contact the hackers & pay the ransom should be ignored. Sadly, the removal steps of Nemty & .Nemty file decryption are not known at this time. Hence, computer users are advised to employ good security practices & take back-up of the data regularly on an external storage device. New Variant of Nemty Ransomware distributing through fake PayPal sitesWhile Nemty Ransomware is a relatively new addition to the family of Ransomware, it has witnessed a few iterations in a considerable short span. Nemty Ransomware variants used different spread techniques to propagate its infection. • The first variant of Nemty File Virus was associated with the Russian President and antivirus industry. The code for the Nemty contained a link that redirected to the image of Russian President Putin and displayed a message to the antivirus industry. This variant used exploited & weak Remote Desktop Connections to spread. • The second Nemty Ransomware variant used RIG Exploit Kits to spread its infection. The attack occurred after a vulnerable software/application was found on the targeted system. Successful exploit was followed by download & execution of the payload, which is the Ransomware itself. • The third wave of attack of the nasty Nemty Ransomware was carried out using phishing & fake PayPal sites. These sites offer to return 3 to 5 % of the amount if users make purchases using their payment system. However, the prime motive behind this claim was to swindle the users & make them download & run a malicious executable file named as “cashback.exe”. Upon execution, this file loaded a malicious version 1.4 of the Nemty Crypto Virus. Behavior of the Latest Nemty Ransomware variant The last of the Nemty Ransomware variants used an entirely different exploit kit named Radio Exploit Kit to propagate. In addition to that, phishing e-mails containing infected attachments are being used to trick the users. A mere click on the infected attachments runs the executable files; hence it makes the exploit successful. Thus, Nemty Ransomware is downloaded & executed on the targeted system. This new Nemty variant contains malign codes for killing the processes & services so as to encrypt the files currently in use with ease. Some of the processes at the target of the Nemty include WordPad, Microsoft Word, SQL, VirtualBox Software, Microsoft Excel & Outlook Thunderbird E-mail Clients. Countries currently at the target of Nemty include Russia, Belarus, Kazakhstan, Tajikistan, Ukraine, Azerbaijan, Armenia, Kyrgyzstan and Moldova. Distribution Techniques of Nemty Ransomware - How to remove Nemty Ransomware infection from the systemSTEP A: Reboot your system to Safe Mode STEP B: Delete the suspicious key from the Configuration Settings STEP C: Remove Malicious Program from Command Prompt STEP D: Restore the System Files & Folders How to prevent Nemty Ransomware from infecting your system-