How to Remove Kangaroo Ransomware

Hello, my laptop has been infected with Kangaroo Ransomware recently. My antivirus program detects the ransomware but can’t remove it. Moreover, my files have been encrypted. These encrypted files include my paper, which is related to my graduation. I am not sure whether I can meet the deadline if I rewrite the paper. So I really want to get my files back. Is there something else I need to do? How to remove Kangaroo Ransomware? Please help me!

What is Kangaroo Ransomware?

Kangaroo Ransomware is a new variant of Apocalypse, which belongs to file-encrypting ransomware group. Before presence of Kangaroo, Esmeralda Ransomware ( another variant of Apocalypse ) has emerged. Similar to other ransomware, Kangaroo Ransomware is able to encrypt victims’ files and demand a ransom note. Common file types will be the target during the encryption. But Kangroo ransomware can be identified by some details. Kangaroo Ransomware utilizes AES algorithm to encrypted files, whose names will be appended with the “.crypted_file” extension. For example, “sample.txt” becomes “sample.txt. crypted_file”. Meanwhile, text files which contain a ransom-demand message are also created. A pop-up window which contains identical ransom-demand information also appears in front of you.

Here is a screenshot of the pop-up message:

How to Search for Your Encrypted Files?

Here is a screenshot of the text file named “*.crypted_file.Instructions_Data_Recovery.txt”

Information included in Kangaroo’s ransom note:

Windows has encountered a critical problem and needs your immediate action to recover your data. The system access is locked and all the data have been encrypted to avoid the information be published or misused. You will not be able to access to your files and ignoring this message may cause the total loss of the data. We are sorry for the inconvenenience.

You have to contact the email below along with your Personal Identification ID to restore the data of your system.

Your Personal Identification ID: –

Email: kangarooencryption@mail.ru

You will have to order the Unlock-Password and the Kangaroo Decryption Software. All the instructions will be sent to you by email.

The main contents are concluded as follows:

Report of your computer problem and the necessity of data recovery.
The reason that your data has been encrypted is for protect your information.
It provides contact information and express willingness to help you to solve the problem.
The importance of downloading Kangaroo Decryption and following their instructions.

Do you believe words from the ransom note? Is what it says true?

At first, you can’t verity the message that the computer went wrong as the ransom note says. Instead, it is certain that the biggest problem in front of you should be data encryption, created by Kangaroo Ransomware. In order to conceal its real intention, Kangaroo ransomware gives an excuse to tell you that the encryption is actually “protection”. In other words, it’s just another tactic to scare victims and encourage them to pay the ransom. Developers of Kangaroo Ransomware know victims’ eagerness to decrypt their files and then provide their methods warmly. Actually, it is almost impossible to decrypt your files without a unique key, which is usually stored on remote servers of Kangaroo’s developers. However, the method provided by Kangaroo’ developers is the detailed payment instruction, which you can receive from the email address named kangarooencryption@mail.ru. The instruction tells you how to purchase Kangaroo Decryption and size of the ransom. A victim needs to pay 500 ~ 1200 US Dollars in Bitcoins for these encrypted files. Although the cost is high, many victims still fall into the trap because they want to decrypt their files. That is exactly what cyber criminals want. The money victims pay for encrypted files will be used to create more ransomware and support malicious activities of cyber criminals. Therefore, please think twice before you make the decision.



Note: Before carrying out any data recovery methods, please make sure Kangaroo Ransomware has been removed from your computer. If you don’t remove it in time, the ransomware will encrypt more files and lead to failure of recovery process. Therefore, users are recommended to remove Kangaroo Ransomware as soon as possible.

Overview of Kangaroo Ransomware
Threat Name

Kangaroo
Risk Level

danger-level9
Category

Ransomware ; Malware
Affected System

Windows XP, Windows 7, Windows Vista, Windows 8/8.1 and Windows 10
Identical Versions

Apocalypse Ransomware

Esmeralda Ransomware

Symptoms: It will append .encrypted extension


Symptoms: The files are renamed in …”crypted” _file


Decryptor: Encrypted files can be released by Emisoft decryptor Decryptor: not published
Behaviors

Encrypt important files, lock targeted computer, demand a ransom payment.
Distribution Methods

Via spam email, email attachments, malicious Exploit kits, trustless websites, update notifications.
Removal Guide

Read the post or download Kangaroo Ransomware removal tool now!
How Does Kangaroo Ransomware Encrypt Your Files?

As mentioned earlier, Kangaroo encrypts target files via AES encoding cipher. AES (Advanced Encryption Standard) is also known as Rijndael (its original name), which becomes one of popular algorithms in Symmetric-key algorithm. Similar to other kinds of Symmetric-key algorithm, both encryption and decryption use the same key. One needs select a key and then encrypt plaintext. The encrypted plaintext is called cipher text. The victim must use the same key to decrypt cipher text, otherwise he/she can’t access these files. Due to simplicity and high speed of encryption process, the ransomware uses the kind of algorithm. Moreover, the algorithm is faster. In contrast to Symmetric Cryptography, Asymmetric Cryptography uses different keys (a public key and a private key) in encryption and decryption. Another type of encryption named Hash Functions (One-Way cryptography ) have no key because the plaintext can’t be recovered from the ciphertext.

When Kangaroo Ransomware lands on a victim’s PC, it will target sensitive and personal files on the PC. Some files that contain business records, financial data and important video file will be locked easier. Once these files are identified, the ransomware will encrypt them by using a key developers selected.