This article is created to help you remove the 2nd version of Satan ransomware from your computer and restore .stn files encrypted by this ransomware.
A new version of Satan ransomware, detected out in the wild was released. The virus was first detected back in January the 19th and was reported to use Tor networking for the ransom instructions and payoff. This version uses directly leaves the e-mails stn_satan@aol.com or Satan-Stn@bitmessage.ch in it’s ransom note, named “0_HELP_DECRYPT_FILES.html” in which it demands 1 bitcoin to be paid in 24 hours otherwise the sum will double. In case you have become a victim of the .stn file virus, recommendations are to read this article thoroughly.
SensorsTechForum team is currently performing an ongoing investigation on Satan 2 ransomware. Expect an update on this article.
Threat Summary
| Name | .stn File Virus |
| Type | Ransomware |
| Short Description | The ransomware is put on the Web as a service (RaaS). It is also free to use, while it requires only a registration. |
| Symptoms | The ransomware encrypts files and will place the same .stn extension to all files after encryption finishes. Also drops a ransom note, named 0_HELP_DECRYPT_FILES.html. |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
See If Your System Has Been Affected by malware
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Malware Removal Tool
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User Experience | Join Our Forum to Discuss .stn File Virus. |
| Data Recovery Tool | Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive. |
Satan 2 Ransomware – How Does It Infect
The infection process of Satan ransomware is no different than the first version. The virus still uses spam e-mail messages with instructions in them to open the attachments, just like the example image below displays:
In the attachment there may be a document portrayed by the e-mail message to be an important invoice or other type of document that should be opened right away.
Besides spam mail, there may be multiple other methods via which this ransomware infection could be replicated and one of them Is if the infection has embedded loader that appears like a game patch, program legitimizing software or a fake setup of software. Such are usually uploaded online on suspicious websites or via hacked account on torrent websites.
Whatever the scenario, once the user opens the malicious file, the payload of the Satan 2 ransomware is dropped on the computer of the user. It consists of the following files:
→ 0_HELP_DECRYPT_FILES.html
Ransomware.exe
Ransomware3.exe
Ransom.exe
.stn File Virus – Malicious Activity
The activity of the .stn ransomware involves multiple different actions, the first of which may be to delete the shadow volume copies on the infected computer. For this, the following commands in Windows Command Prompt are likely used:
→ process call create “cmd.exe /c
vssadmin.exe delete shadows /all /quiet
bcdedit.exe /set {default} recoveryenabled no
bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
After this, the Satan 2 ransomware may begin to interfere with the Windows Registry editor, more specifically set multiple different malicious files to run when Windows starts up. This is achievable by modifying the following Windows registry sub-keys:
→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
In addition to this, the Satan ransomware variant using the .stn extension may also shut down or interfere with multiple critical Windows objects, like the following:
→ KERNEL32.dll
ADVAPI32.DLL
.stn File Virus – Encryption Activity
For the encryption process, this iteration of Satan Ransomware may use the AES-256 and RSA-2048 encryption algorithms. The AES cipher may be employed in order to encrypt the files themselves, generating symmetric decryption key. The RSA cipher then may be additionally employed to generate a public key assigned to the user and embed it within the files.
Image Source: Wikipedia
Satan 2 ransomware is believed to scan for and look for the following file types to encrypt:
→ .incpas, .mp4, .pab, .st6, .sas7bdat, .wmv, .backup, .drf, .ibank, .3ds, .odg, .cer, .tif, .cs, .dotx, .7z, .png, .bak, .ibz, .db3, .pbl, .3fr, .dxf, .nk2, .bkp, .mdf, .svg, .xlm, .3dm, .pct, .java, .pot, .sxi, .ibd, .sxw, .pspimage, .ppt, .kbx, .ppsm, .ndd, .txt, .pdb, .say, .backupdb, .fla, .swf, .asx, .accdt, .mp3, .ycbcra, .erf, .cr2, .pfx, .potx, .qby, .sqlite, .blend, .class, .pat, .odp, .gray, .qbw, .tib, .thm, .htm, .mos, .rm, .key, .std, .tlg, .lua, .pst, .sqlitedb, .grey, .cdr4, .dc2, .ce1, .ps, .tex, .eml, .xlam, .pages, .st8, .jar, .st7, .potm, .sdf, .db-journal, .pcd, .aspx, .rwl, .kpdx, .fmb, .xlr, .gry, .kc2, .oil, .moneywell, .xlk, .sti, .accdr, .oth, .c, .xml, .nd, .mdb, .pem, .erbsql, .bpw, .ffd, .ost, .pptm, .dwg, .zip, .qbm, .cdx, .des, .dng, .pdd, .cfp, .nyf, .cgm, .sldm, .xla, .odf, .raf, .crw, .mef, .raw, .x11, .nsd, .fff, .design, .dcs, .ptx, .al, .ns2, .bik, .back, .accdb, .nwb, .cpi, .ads, .odt, .sqlite3, .docm, .drw, .pl, .nx2, .fpx, .rdb, .otp, .msg, .accde, .agdl, .php, .csv, .py, .rtf, .ach, .sda, .ddd, .asf, .dotm, .cmt, .h, .hbk, .xlsx, .s3db, .tga, .wav, .iif, .dxb, .sql, .db, .sd0, .bgt, .djvu, .jpg, .doc, .craw, .mpg, .sxd, .kdc, .jpeg, .psafe3, .flac, .dtd, .act, .qba, .vob, .cdrw, .eps, .bkf, .mdc, .rar, .mov, .cdf, .m4v, .ab4, .bank, .pps, .cib, .dot, .dgc, .exf, .flv, .xlsb, .ddrw, .adb, .srw, .plc, .csh, .xls, .fxg, .otg, .pas, .xlt, .indd, .rwz, .xltx, .apj, .stw, .xltm, .orf, .ott, .qbb, .max, .cls, .obj, .docx, .dcr, .cdr3, .qbx, .pdf, .nef, .ots, .srt, .ddoc, .rat, .phtml, .m, .dbx, .nxl, .avi, .p12, .awg, .dbf, .ns3, .mmw, .prf, .wallet, .rw2, .jin, .odc, .qbr, .ppsx, .ns4, .wpd, .wps, .nsh, .dxg, .fhd, .dac, .wb2, .nrw, .odb, .ait, .jpe, .odm, .sldx, .fdb, .acr, .war, .oab, .sxc, .cpp, .r3d, .hpp, .asm, .st5, .stx, .xis, .dds, .xlsm, .p7c, .cdr5, .3g2, .mrw, .sr2, .html, .cdr, .idx, .st4, .bdb, .kdbx, .nsg, .der, .ods, .myd, .nop, .ppam, .pptx, .yuv, .xlw, .mfw, .nsf, .csl, .php5, .p7b, .crt, .asp, .srf, .jsp, .cdr6, .sxm, .iiq, .3gp, .ce2, .arw, .bay, .ai, .sxg, .psd, .3pr, .fh, .pef, .x3f, .sik, .bpp, .vmdk, .spi, .bup, .cvt, .bb, .fkc, .tjl, .dbk, .swp, .fb, .vib, .dtb, .bke, .old, .bkc, .jou, .rpb, .abk, .sav, .bkn, .tbk, .fbw, .vrb, .spf, .bk, .sbk, .umb, .ac, .vbk, .wbk, .mbk
After the encryption process by Satan ransomware has completed, the ransomware infection appends the .stn file extension to the files encrypted by it. The files appear like the following:
Source: Affected user
In addition to this, the ransom note of the ransomware is also dropped on the computer of the victim, this time directly directing the victim to pay the BitCoin address, instead of utilizing the Tor network for the ransom payoff:
Ransom note’s content:
What happened to my files ?
All of your personal files were encrypted using AES-256 and RSA-2048
Your personal ID{custom key}
What does this mean ?
This means that the content of your files have been changed, you will not be able to use them, it is basically the same as losing them forever. However, you can still get them back with our help.
How can I get my files back ?
As said before, your files have been encrypted, in order to decrypt them, you’ll need the private key of the key pair that was generated when your files were encrypted. Decrypting your files is only possible with the private key and the decrypter.
To get the decryptеr you should:
pay for decrypt:
to send 1 bitcoin today (tomorrow 2 bitcoins) to bitcoin the address 1Nez7W9ashFL4BA7vHuA5aoaad9XtqHKCF
Here are our recommendations:If you have no Bitcoin address register https://blockchain.info/wallet
fill up your wallet some of the ways:
Btcdirect.eu – Good service for Europe
Bittylicious.com – Bitcoins through Visa / MC or through SEPA (ЕС) transfer
Localbitcoins.com – Here you can find people who want to sell Bitcoins directly (WU, in cash, SEPA, Paypal u.s.).
Cex.io – buy bitcoins with Visa / Mastercard or Wire Transfer.
Coincafe.com – Designed for quick and easy service. Payment methods: Western Union, Bank of America, cash by FedEx, Moneygram, as money transfer
Bitstamp.net – well known and established Bitcoins seller
Coinmama.com – Visa / Mastercard
Btc-e.com – Bitcoins vendor (Visa / Mastercard, etc.)
If you have not found any bitcoins in your region, try to find them here:
Buybitcoinworldwide.com – International Bicoins Exchange Directory
Bitcoin-net.com – Another directory of Bitcoins sellers
Howtobuybitcoins.info – International Bicoins Exchange Directory
Bittybot.co/eu – Directory for countries of the European Union
write to Google how to buy Bitcoin in your country?mail support stn_satan@aol.com or Satan-Stn@bitmessage.ch:
After the payment:Send screenshot of payment to mail support stn_satan@aol.com or Satan-Stn@bitmessage.ch. In the letter include your personal ID (look at the beginning of this document).
After you will receive a decryptor and instructions
Attention!No Payment = No decryption
You really get the decryptor after payment
Do not attempt to remove the program or run the anti-virus tools
Attempts to self-decrypting files will result in the loss of your data
Decoders other users are not compatible with your data, because each user’s unique encryption key
Remove Locky Remove Satan 2 Ransomware and Restore .stn Encrypted Files
For the removal process of Satan 2 ransomware infection, it is strongly advisable to backup the files encrypted by this virus. After this has been completed, recommendations are to follow the removal instructions below. They are created in order to help with the proper removal of the ransomware by isolating it first. In case manual removal is a challenge for you, recommendations are to focus on performing automatic removal with an advanced anti-malware program which will delete every file associated with Satan 2 ransomware and protect your computer from such threats in the future as well.
In case you want to restore encrypted files by Satan 2 ransomware, recommendations are to follow the alternative methods we have posted in step “2. Restore files encrypted by Satan 2” below. They may not be 100% effective in restoring your files, but may restore at least some of them until a decryptor is released for this infection.
Ventsislav Krastev
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Step 1: Scan for .stn File Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .stn File Virus and related malware from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by .stn File Virus on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by .stn File Virus there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Boot Your PC In Safe Mode to isolate and remove .stn File Virus
Step 5: Try to Restore Files Encrypted by .stn File Virus.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and .stn File Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
.stn File Virus-FAQ
What is .stn File Virus Ransomware?
.stn File Virus is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.
Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.
What Does .stn File Virus Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does .stn File Virus Infect?
Via several ways..stn File Virus Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.
Another way you may become a victim of .stn File Virus is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.
How to Open ..stn File Virus files?
You can't without a decryptor. At this point, the ..stn File Virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your ..stn File Virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..stn File Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..stn File Virus files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of .stn File Virus Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate .stn File Virus ransomware and then remove it without causing any additional harm to your important ..stn File Virus files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can .stn File Virus Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the .stn File Virus Research
The content we publish on SensorsTechForum.com, this .stn File Virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the .stn File Virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.
My pc also affected this ransomware please give me solution for decrypt my files.please give me solution my important data is encrypted.