How to remove LostInfo Ransomware and decrypt .lostinfo files

What is LostInfo Ransomware

LostInfo Ransomware is a malicious software designed to encrypt the files on a victim’s computer, making them inaccessible and effectively holding them hostage until a ransom is paid. This type of ransomware typically targets a wide range of file types, ensuring that critical data such as documents, photos, and databases are all affected. Primarily, it appends the .lostinfo extension to each encrypted file, signifying that the file has been compromised. The encryption utilized by LostInfo Ransomware generally employs strong algorithms, such as AES (Advanced Encryption Standard) or RSA (Rivest–Shamir–Adleman), which are virtually impossible to decrypt without the corresponding key. The attacker leaves behind a ransom note, typically named README.TXT, in each affected directory, which contains instructions on how to pay the ransom, usually demanding payment in cryptocurrency like Bitcoin to maintain anonymity.

In terms of decryption, there are currently no publicly available tools capable of reversing the encryption performed by LostInfo Ransomware without acquiring the decryption key from the attackers. However, one crucial step to take immediately is to create a backup of all encrypted files to ensure they remain accessible should a legitimate decryption method become available in the future. To decrypt .lostinfo files, users can use cloud services such as OneDrive to restore previous versions of the files. After navigating to OneDrive, right-click anywhere in the window and select “Paste” to restore backed up files. While this approach does not remove the malware from the infected system, it provides a temporary solution to regain access to encrypted data without paying the ransom. This highlights the importance of regular backups and maintaining an up-to-date security posture to prevent such infections in the first place.

How LostInfo Ransomware infects computers

LostInfo Ransomware typically infiltrates computers through deceptive techniques such as phishing emails, malicious attachments, or compromised websites. These phishing emails often masquerade as legitimate communications from trusted sources, tricking users into downloading and opening malicious attachments. Once the ransomware is executed, it exploits system vulnerabilities and begins encrypting a wide range of files, appending the “.lostinfo” extension. The malware then displays a ransom note, demanding payment in cryptocurrency for the decryption key. To enhance its persistence, LostInfo Ransomware may also disable system recovery options and delete shadow copies, making it more challenging to restore encrypted files without paying the ransom. Understanding these infection vectors and practicing cybersecurity hygiene, such as not opening suspicious emails and keeping software up to date, can help prevent such devastating attacks.

1. Download LostInfo Ransomware Removal Tool
2. Get decryption tool for .lostinfo files
3. Recover encrypted files with Stellar Data Recovery Professional
4. Restore encrypted files with Windows Previous Versions
5. Restore files with Shadow Explorer
6. How to protect from threats like LostInfo Ransomware

LostInfo Ransomware files:


README.TXT
{randomname}.exe


LostInfo Ransomware registry keys:

no information

How to decrypt and restore .lostinfo files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, that can decrypt .lostinfo files. Download it here:

Download RakhniDecryptor

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .lostinfo files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with LostInfo Ransomware and removed from your computer, you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually, you can do the following:

Use Stellar Data Recovery Professional to restore .lostinfo files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select the type of files you want to restore and click Next button.
4. Choose the location where you would like to restore files from and click Scan button.
5. Preview found files, choose ones you will restore and click Recover.

Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

1. Right-click on infected file and choose Properties.
2. Select Previous Versions tab.
3. Choose a particular version of the file and click Copy.
4. To restore the selected file and replace the existing one, click on the Restore button.
5. In case there are no items in the list, choose an alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it, and you will see a screen listing of all the drives and the dates that shadow copy was created.
3. Select the drive and date that you want to restore from.
4. Right-click on a folder name and select Export.
5. In case there are no other dates in the list, choose an alternative method.

If you are using Dropbox:

1. Login to the Dropbox website and go to the folder that contains encrypted files.
2. Right-click on the encrypted file and select Previous Versions.
3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like LostInfo Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

Download ZoneAlarm Anti-Ransomware

2. Back up your files

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. LostInfo Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro