Tirp ransomware explained: what happened to your files?
Tirp ransomware is a computer infection developed for the sole purpose of crypto-currency extortion. It does that by renaming and encrypting data on a targeted device, thus making it inaccessible until a necessary decryption tool is used. Threat actors behind this file-locker demand a ransom ($490/$980) to be paid in Bitcoins for the said tool through a generated ransom note titled _readme.txt.
The note also contains instructions, social-engineering techniques, and contact information (helpteam@mail.ch and helpmanager@airmail.cc) to reach out to hackers. During the encryption, all personal files, including archives, backups, pics, documents, and others, are renamed by appending a .tirp extension to their original filenames.
This file-locking parasite belongs to one of the biggest ransomware families there is – Djvu. This family was first spotted in 2018, and since then, new variants are being released every week. If your computer is infected with a ransomware virus – all is not lost. The main thing is not to panic and not make any rash decisions.
There are companies constantly working to help ransomware attack victims to get out of these unpleasant situations scotch-free. Emisoft is regularly updating its decryption toolkits that might help you to restore encrypted files for free. There might also be other data recovery options, which we will provide along with this ransomware summary, its spreading techniques, and removal options.
| name | Tirp ransomware |
|---|---|
| Type | File-locker, cryptovirus |
| Family | Djvu |
| Appended file extension | .tirp |
| Ransom note | _readme.txt |
| Ransom amount | The price for the decryption tool from the cybercriminals varies depending on the hastiness of their victims. If criminals are contacted within 72 hours, a 50% discount is applied to lower the price to $490. Otherwise, the amount to forward in Bitcoins is $980 |
| Criminal contact details | helpteam@mail.ch and helpmanager@airmail.cc |
| Distribution | Spam emails, torrent portals, deceptive ads, fake Flash Player installers/updates |
| malware removal | If your device is infected, act swiftly and scan it with trustworthy anti-malware software to eliminate any threats |
| System health fix | Malware does extensive damage to essential system files and settings. Use the FortectIntego system repair tool to fix any system-related issues. If left neglected, they might cause BSoDs,[1] freezing, lag, infection renewal, or other system irregularities |
The provided ransom message is quite informative as such things go. Cybercriminals claim that all personal victim data is encrypted and that the only way to recover it is by forwarding a ransom in Bitcoins. They continue by trying to convince that their victims that the appropriate tool exists and that they will deliver it by using various persuasion techniques:
- offering to decrypt one locked file from the infected machine for free,
- providing a link where the supposed tool can be seen live,
- offering a 50% discount for victims that act swiftly.
The entire _readme.txt ransom note message reads:
ATTENTION!
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:
hxxps://we.tl/t-Wl6WKEBetp
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
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:
helpmanager@mail.chReserve e-mail address to contact us:
helpmanager@airmail.ccYour personal ID:
This message is almost identical to other Djvu family ransomware, including Pola virus, Plam virus, Ribd virus, to name just a few. Tirp file virus bears other similarities with its older versions, such as the contact email addresses, encryption algorithms (RSA 2048), distribution techniques, and so on.
If your Windows PC got infected with this file-locker, but you had backups, then you can easily delete malware and forget about it. If you didn't, the road to file recovery will be a bit rockier. But the most important thing is not to succumb to the demands of the criminals.
They could use the ransom money to develop more advanced malware, research more effective infection techniques, and expand their dirty empire altogether. That's why the only right thing to do is to remove this virus from an infected device and look for other data recovery options.
Trustworthy anti-malware software should be on every device that's used on the internet. Security tools such as SpyHunterCombo Cleaner and MalwarebytesMalwarebytes are suitable for the Tirp virus removal and would protect your computers from all kinds of malware attacks in the future. Please remember to keep their virus databases updated so they can identify the latest threats.
It's a well-known fact in the cybersecurity community that Djvu family viruses leave a lot of traces throughout system files and settings. Such entries could prevent you from visiting security portals (including 2-spyware.com), using your anti-malware software, and other irritating mishaps.
Therefore, after you get rid of the infection, you need to use a powerful system repair tool to take care of all system-related issues and get your PC back on track. According to many user reviews, the best all-in-one system diagnostics tool is the FortectIntego app.
Dangerous infections are lurking in file-sharing platforms
Computer and other device users can infect their machines in many different ways. Deceptive ads, shady websites, fake Flash Player updates, spam emails, drive-by downloads, and other techniques are constantly used to distribute various types of malware[2] and potentially unwanted programs.
Despite all these methods, developers of Djvu ransomware use file-sharing platforms, especially torrent portals, to spread their created hazardous malware. They exploit such platforms because they lack end-to-end security, meaning no one checks the uploaded content for infections.
Viruses from this family were usually hidden in the most anticipated game cracks, expensive pirated software, and other popular downloads. Therefore, if you value your privacy, security, and your data, think twice before downloading anything from popular torrent websites.
Simple instructions to remove Tirp virus with the help of security tools
The worst thing any cyberattack victim can do is choose the easy way out by paying the criminals for the decryption tools. That money can be used to infect the computers of other innocent people and other ill intents. That's why you should remove the malicious files immediately.
If you didn't keep backups of essential files, try using Emisoft free decryption tools or other data recovery options listed below in this article. If none of them work, then extract all data to an empty offline storage device, such as a USB drive, and check back with us later to find out if a necessary decryptor is available.
Then you're ready to take on the task of Tirp ransomware removal. We advise doing that with reliable anti-malware software such as SpyHunterCombo Cleaner or MalwarebytesMalwarebytes. Either of these apps should identify, locate, and eliminate the infection with all of its components.
As we've mentioned in the first part of this article, Djvu ransomware makes numerous modifications to the Registry, host files, and other essential system files and settings. These alterations will impede the normal performance of your PC and might cause malware renewal. Experts from LesVirus.fr[3] highly recommend resolving these issues by performing a full system scan with the FortectIntego system repair tool.
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