PayForRepair Ransomware Slaps A Price Tag On Your Files

Another Threat on the Cyber Scene

Cybersecurity researchers have uncovered another strain of ransomware making its way through infected systems: PayForRepair. This malicious program belongs to the well-known Dharma ransomware family and follows a familiar yet dangerous pattern—encrypting files and demanding a ransom in exchange for decryption.

PayForRepair is designed to lock victims out of their data while applying a uniquely identifiable tag to each encrypted file. Infected files are renamed to include a victim-specific ID, the attackers' email address, and the extension ".P4R". Victims also receive ransom notes both as pop-up windows and as a text file named info.txt, which is dropped into each affected folder.

Here's what the ransom note says:

All your files have been encrypted!

Don't worry, you can return all your files!
If you want to restore them, write to the mail: payforrepair@tuta.io YOUR ID -
If you have not answered by mail within 12 hours, write to us by another mail:payforrepair@mailum.com

Free decryption as guarantee
Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)

How to obtain Bitcoins

Also you can find other places to buy Bitcoins and beginners guide here:
hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/

Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

What PayForRepair Wants

Ransomware like PayForRepair is created to make personal and business data inaccessible by encrypting it using strong algorithms. Once encrypted, the files can't be opened or used unless a unique decryption key is provided—something only the attacker has. PayForRepair's ransom note directs victims to email the attackers to negotiate for data recovery. The pop-up further clarifies the situation, stating that decryption will only be provided after payment is made in Bitcoin.

The attackers offer a token of "good faith" by allowing the victim to decrypt up to three files for free, provided those files meet certain criteria. This tactic is commonly used to build trust and pressure the victim into paying. However, they also warn victims against using third-party recovery tools, claiming it could permanently corrupt the encrypted files—a fear tactic typical of ransomware campaigns.

Why Dharma-Based Attacks Are Hard to Beat

As a member of the Dharma ransomware family, PayForRepair shares several traits with its counterparts. While it spares critical system files—meaning victims can still operate their devices—it targets local and network-shared files indiscriminately. The ransomware boosts its success rate by terminating processes related to open files, such as those used by databases or productivity apps, ensuring those files can be locked as well.

To control infected systems, Dharma-based malware often embeds itself into specific locations on the machine, such as the %LOCALAPPDATA% directory, and sets itself to launch every time the computer is restarted. It also deletes any Volume Shadow Copies—a built-in Windows backup feature—so victims can't simply roll their systems back to an earlier state.

The Harsh Reality: Paying May Not Help

Unfortunately, the odds are stacked against victims once PayForRepair has locked their files. The encryption methods used are generally robust, and without the attackers' decryption key, recovery is nearly impossible. Even if victims do pay the ransom, there's no guarantee the decryption tools will actually be provided. In many cases, cybercriminals simply take the payment and vanish.

That's why cybersecurity experts strongly discourage paying any ransom. Doing so not only funds criminal operations but also fuels the growth of ransomware as a service (RaaS) models, where malware kits are sold or rented to other bad actors for widespread attacks.

How PayForRepair Spreads

The most common method of infection for Dharma ransomware variants, including PayForRepair, is through weak Remote Desktop Protocol (RDP) services. Attackers use brute-force techniques to guess passwords and gain access to systems with poor login security. Once inside, they can easily deploy ransomware and disable defenses such as firewalls.

However, RDP isn't the only vector. Other common methods include phishing emails, malicious file attachments, fake software updates, and downloads from unverified sources. Often, ransomware is disguised as a harmless-looking document or installation file. When opened, it silently installs itself and begins encrypting files.

In some cases, ransomware can spread laterally across networks or even infect removable media like USB drives. This highlights the need for multi-layered defenses that go beyond just antivirus software.

Optimal Practices for Prevention and Recovery

Because removing ransomware like PayForRepair won't decrypt your files, prevention is the best line of defense. One of the most critical steps is maintaining regular, offline backups stored in secure and separate locations—ideally in both physical and cloud environments. This ensures that even if you get attacked, data can be restored without paying a ransom.

Users should also be cautious when browsing online or opening unsolicited emails. Attachments and links from unknown sources should always be treated with suspicion. Additionally, organizations should disable unused RDP access, enforce strong password policies, and regularly update software to patch known vulnerabilities.

Evolving Ransomware Landscape

PayForRepair joins a growing list of ransomware strains, including others like Jackalock, DarkMystic, and VerdaCrypt. Each operates with slightly different methods and targets, but all share a common purpose: locking data and extorting payment. Some demand a few hundred dollars; others, millions—depending on the target.

As threats continue to evolve, so must our understanding of how they operate and how to defend against them. While PayForRepair is just one name in a crowded ransomware field, its methods are a clear reminder of how even routine browsing or email checking can open the door to significant disruption—unless proper safeguards are in place.