Cdpo Virus Ransomware (.cdpo File) Removal

Cdpo Virus is a strain within the STOP/Djvu Ransomware family, employing the Salsa20 encryption algorithm to encrypt files on compromised systems. Victims are coerced into paying a ransom ranging from $999 to $1999 in Bitcoins for the decryption key.

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About Cdpo Ransomware:

NameCdpo Virus
File Extension.cdpo
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Offline IDBn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1
Last seenJune 15, 2024
AlgorithmSalsa20 encryption. If Cdpo cannot establish a connection to crooks server before starting the encryption process, it uses the offline key. This key is the same for all victims(!), making it possible to decrypt .cdpo files in the future.
RansomFrom $999 to $1999 (in Bitcoins)
  1. ⮞ Can delete Volume Shadow copies to make victim’s attempts to restore data impossible;
  2. ⮞ Adds a list of domains to HOSTS file to block access to certain security-related sites;
  3. ⮞ Installs password-stealing trojan virus, like Redline Stealer, Vidar Stealer, Smokeloader, Azorult and others;
DistributionThird-party downloaders, installers, peer-to-peer networks, RDP exploits, etc.,
RSA Public Key-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr0GLq/mHXqBal7ucID+c cFScc8/W1OCT0GTCVzJgxoMkEGJZqNselbUtChT0yNq5BFkt44IkH/PtixxLTHYo EmqbXelDPaljN+zsslk8klrc0Or3AWuqZ/1RR7QbtctpTFJ9hiD0FP1pE4MjvbXb f7KvBkAnDRnPXWcZpw7NvDbt1XOa2cptFcsH7lOLWhFuskkOcE15lQ485pNSOkcm VXpam/yhHl5jrHs4ue0uSBXJ1yeJqQT/312wZma6ho0sDTHqC3/+4+Md8LF8p0OD /bmb+kMQv0Oaou31VupP4C2qlkjZLaPqzjX/amkyo8iQ/1bRZQW5ZbtbXFlFb/4M /wIDAQAB -----END PUBLIC KEY-----
Other variants
  • Cdaz Ransomware (.cdaz encrypted files)
  • Cdwe Ransomware (.cdwe encrypted files)
  • Cdmx Ransomware (.cdmx encrypted files)
  • Cdpo Virus (.cdpo File): How Does Ransomware Works & What To Do?

    What is Cdpo ransomware?

    Discovering files with the .cdpo extension on your computer is a clear indicator that you've been targeted by the Cdpo ransomware. This malware aims directly at your finances—it encrypts your files and demands a ransom for their decryption. Before encrypting your files, it performs various modifications to your system settings to deactivate security defenses and block the execution of antivirus programs.

    The Cdpo ransomware utilizes the Salsa20 encryption algorithm. Although this cipher is not the most robust form of encryption, decrypting it through conventional means remains impractical.

    The security modifications made by the Cdpo virus are extensive. It deactivates Microsoft Defender and tweaks system configurations to prevent the installation of most antivirus software. Furthermore, it modifies the HOSTS file, obstructing access to websites that offer ransomware removal and file decryption advice.

    Encryption process

    The Cdpo ransomware uses the Salsa20 encryption algorithm. That is not the strongest method, but it still provides an overwhelming amount of possible decryption keys. To brute force the 78-digit number of keys, you need 3.5 unvigintillion years (1*10^65), even if you use the most powerful regular PC. Quantum computers can show a bit better results, but it is still too slow to get your files back while you are alive.

    The exact algorithm of encryption is next: malware scans each folder for the files it is able to encrypt. Then, when it finds the target, it makes a copy of your file, removes the original one, encrypts the copy and leaves it instead of the removed original. Such a procedure is done to prevent the situation when you have already opened the file, so ransomware is not able to read it because of the Windows restrictions. To each encrypted copy, the virus adds the specific extension - ".cdpo". Then, ransomware creates a _readme.txt file in the folder where the encrypted file is located, and goes to the next folder.

    .CDPO Files

    Such an encryption method can be exploited for file recovery. Since the original file is deleted, you may try to recover it using the file recovery tools. The less time is passed - the bigger the chance to get your files back, so hurry up!

    Another specific moment that can help you to use the files even after the encryption is the fact that Cdpo ransomware encrypts only the first 150KB of each file. Hence, you can try to run a big file, such as video or music, without the encryption. Similar feature also works with other ransomware families - Dharma, Conti and Makop encrypt the same 150KB.

    Ransom note: _readme.txt

    Ransom note is the same for the whole ransomware family. In fact, it is one of the main signs of to which family the certain ransomware belongs. Here is the typical note for STOP/Djvu family:


    Don't worry, you can return all your files!
    All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.
    The only method of recovering files is to purchase decrypt tool and unique key for you.
    This software will decrypt all your encrypted files.
    What guarantees you have?
    You can send one of your encrypted file from your PC and we decrypt it for free.
    But we can decrypt only 1 file for free. File must not contain valuable information.
    You can get and look video overview decrypt tool:
    Price of private key and decrypt software is $1999.
    Discount 50% available if you contact us first 72 hours, that's price for you is $999.
    Please note that you'll never restore your data without payment.
    Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.

    To get this software you need write on our e-mail:
    [email protected]

    Reserve e-mail address to contact us:
    [email protected]

    Your personal ID:

    🔗 HowToFix.Guide: How To Decrypt .cdpo Files?

    Indicators of Compromise(IOC)

    File NameMD5File Size
    📜 SAMPLE.EXE0407f464f5383cc888945bda2afa42c6740352
    📜 SAMPLE.EXE8c3631853d9b8d9749d0a37519cd7c7e1273856
    📜 SAMPLE.EXEca106182fc4543131ef128b77f57c70a749568
    📜 SAMPLE.EXE14aef15f47c83979904e8b4ca634dbef748032
    📜 SAMPLE.EXE14a5973627a876bdbafb029a26084f64836608
    📜 SAMPLE.EXEafdd799a769a2fd3f66c2fad9f1d1026821760
    📜 SAMPLE.EXE1c35f5280fcc9305d7ae3b66addd807d828928
    📜 SAMPLE.EXE1a3bb5acfb7f3ee075b7e6bd97243935829440
    📜 SAMPLE.EXEee76b731823735786a480232332cb3ef651048
    📜 SAMPLE.EXE507c0b362fb27c14fb11594977e0893f685437