The Dont_Worry virus is a newly discovered ransomware, part of the AMBA malware family. Read our in-depth removal guide to learn how to get rid of the infection and restore the affected data.
Threat Summary
| Name | Dont_Worry |
| Type | Ransomware |
| Short Description | The Dont_Worry virus is ransomware strain that originates from the AMBA malware family and can be customized to launch a variety of components against the infected users. |
| Symptoms | The victims may be impacted with low overall system performance and will notice that their sensitive data are encrypted by the malware engine. |
| Distribution Method | Spam Emails, File Sharing Networks, Exploit Kits |
| Detection Tool |
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Dont_Worry Virus – Infection Spread
The Dont_Worry virus can be distributed using different methods according to the scope of the attack campaign and the intended targets. Usually the most convenient way is to concetrate first on one method and then start a secondary attack acting as a support. If the strain is advanced enough it can be launched simultaneously via multiple methods.
The hackers behind this particular threat can customize spam messages that infect the recipients with the virus code. This is done by inserting hyperlinks that redirect to a hosted malware instance. The other common way is to insert directly attach the virus files to the messages. The hackers use social engineering tactics that coerce the victims by taking legitimate text and graphics from well-known sites or services.
In a similar way the hackers can utilize two other related strategies that embed the Dont_Worry virus into payload carriers. The first way is to insert the virus code into documents. They can be of different types (rich text documents, spreadsheets or presentations) and spawn a notification prompt. It asks the users to enable the built-in scripts (macros), when this is done the malware engine automatically downloads the malware from a remote host and executes it onto the target system. Another tactic is to insert the code into software installers. The hackers tend to choose popular software that is often used by end users: system utilities, creativity applications and even games.
These hacker-made files are then usually distributed on various counterfeit download portals that are made to appear like the well-known famous services. It is possible to integrate links to the Dont_Worry virus via various web scripts such as banners, redirects and pop-ups.
Dont_worry virus samples can be integrated into browser hijackers. They are malware browser plugins that promise better functionality and various feature addons. Using fake descriptions, developer credentials and user reviews they can be found both on the official repositories (such as the Chrome Web Store for Google Chrome) and third-party sites. After installation the most common effect is that the victims will be redirected to a hacker-controlled site and will have altered default settings (search engine, home page and new tabs page). Such threats are usually made for the most popular web browsers: Mozilla Firefox, Google Chrome, Microsoft Edge, Internet Explorer, Safari and Opera.
Dont_Worry Virus – Technical Data
The Dont_worry virus is a newly discovered strain that belongs to the AMBA ransomware family. It appears to be a customized version that is based on code that can be easily modified and updated. This means that the hackers behind it (an individual hacker or a criminal collective) can create separate versions for each individual attack.
The infections can begin with an information gathering module that can be programmed into harvesting various kinds of data from the compromised machines. It is usually classified into two separate types:
- Personal Data — The malware engine is programmed into harvesting strings related to the victim users. This includes their name, address, location, interests, passwords and account credentials.
- Anonymous Data — The virus can also gather data concerning the hardware components and the installed software.
The collected information can be used to launch a separate stealth protection compoent. It is used to bypass applications that can interfere with the virus execution. This includes anti-virus tools, sandbox and debug environments and virtual machine hosts.
Further changes to the systems allow the computer criminals to cause dangerous modifications — registry changes, operating system configuration and boot options. Depending on the severity it may cause issues ranging from applications runtime problems to overall performance impact. The Dont_Worry virus may remove the possibility to enter into the boot recovery menu. Such behavior is expected if the malware attains a persistent state of execution.
Advanced configuration allows the virus to create a network connection with a hacker-controlled server. It is used to both retrieve the harvested data, as well as deploy additional threats. In some cases this connection can be used to remote control the compromised machines in a manner similar to Trojan instances.
Dont_Worry Virus — Encryption Process
Once the Dont_worry virus components have complete the built-in ransomware module is loaded. It uses a predefined list of target file type extensions which can be amended depending on the attack campaign. The captured samples have been found to act against the following data:
.$$$, .[0-9]+, .~ini, .~klt, .1cd, .1cd2, .1cl, .1ey, .1txt, .2, .2cd, .6t[0-9]*, .6tr, .7z, .7zip, .8t0, .8tr,
.9tr, .a2u, .a3d, .aad, .abd, .accdb, .adb, .adi, .afd, .ai, .als, .amp, .amr, .ans, .apc, .apk, .apx, .arc,
.arch, .arh, .arj, .atc, .atg, .ava, .avhd, .avhdx, .awr, .axx, .bac[0-9]*, .backup, .bak, .bck, .bco, .bcp,
.bde, .bdf, .bdf, .bf, .bf3, .bg, .bip, .bkc, .bkf, .bkp, .bks, .blb, .blf, .blk, .bln, .bls, .bls, .bmp, .box,
.bpl, .bpn, .btr, .burn, .bz, .bz2, .car, .cbf, .cbm, .cbu, .cdb, .cdr, .cdx, .cer, .cf, .cfl, .cfu, .cia, .cmt,
.cnc, .cpr, .cr2, .cripted, .criptfiles, .crypt, .csv, .ctl, .ctlg, .cuc, .cui, .cuix, .custom, .dafile, .data,
.db, .db[0-9]*, .dbf, .dbk, .dbs, .dbt, .dbx, .dcf, .dcl, .dcm, .dct, .dcu, .dd, .ddf, .ddt, .dfb, .dff, .dfp, .dgdat,
.dic, .diff, .dis, .djvu, .dmp, .doc, .docx, .dot, .dpr, .dproj, .drs, .dsus, .dt, .dtz, .dump, .dwg, .dz, .ect, .edb, .efd,
.efm, .eif, .elf, .eml, .enc, .enz, .epf, .eps, .erf, .ert, .esbak, .esl, .eso, .etw, .export, .fbf, .fbk, .fdb, .fdb[0-9]*,
.fi, .fil, .fkc, .fld, .flx, .fob, .fpf, .fpt, .frf, .frm, .frp, .frw, .frx, .fxp, .gbk, .gbp, .gd, .gdb, .gdoc, .gfd, .gfo,
.gfr, .gho, .ghost, .ghs, .gif, .gopaymeb, .gpd, .granit, .grd, .gsheet, .gsn, .gz, .gzip, .hbi, .hbk, .hdf, .his, .hive, .htm,
.html, .ib, .idf, .idx, .ifm, .ifo, .ifs, .ima, .img, .imgc, .imh, .imm, .indd, .info, .ipa, .ips, .irsf, .irsi, .irss, .iso,
.isz, .iv2i, .jbc, .jpeg, .jpg, .jrs, .kdc, .keg, .key, .klt, .kmn, .kpm, .kwm, .laccdb, .last, .lay6, .lbl, .ldb, .ldf, .ldif,
.ldw, .lg, .lgd, .lgf, .lgp, .lic, .lis, .lky, .lnk, .local, .lock, .lrv, .lsp, .lst, .lvd, .lzh, .m2v, .mac, .mak, .map, .max, .mb,
.mbox, .mcx, .md, .md5, .mdb, .mde, .mdf, .mdmp, .mdt, .mdw, .mdx, .meb, .mft, .mig, .mkd, .mnc, .mnr, .mns, .mod, .mov, .msf, .mtl,
.mxl, .mxlz, .mxlz, .myd, .myi, .n[0-9]*, .nag, .nbi, .nbk, .nbr, .nc, .nd[0-9]*, .ndf, .ndt, .nef, .new, .nif, .nrg, .nsf, .ntx, .nvram,
.obf, .ods, .odt, .ogd, .ok, .okk, .old, .one, .onetoc2, .ora, .ord, .ost, .out, .ovf, .oxps, .p12, .packed, .pak, .pas, .paycrypt@gmail_com, .pbd,
.pbf, .pck, .pdf, .pdt, .pf, .pfi, .pfl, .pfm, .pfx, .pgd, .pgp, .php, .pka, .pkg, .pkr, .plague17, .plan, .plb, .pln, .plo, .pm, .pml, .png, .pnl, .ppd,
.ppsx, .ppt, .pptx, .prb, .prg, .prk, .profile, .prv, .ps1, .psd, .psl, .pst, .pwd, .pwm, .px, .py, .q1c, .qib, .qrp, .qst, .rar, .rbf, .rcf, .rdf, .rec,
.rep, .repx, .req, .res, .rez, .rgt, .rk6, .rn, .rpb, .rpt, .rst, .rsu, .rtf, .rvs, .sac, .sacx, .save, .saved, .sbin, .sbk, .sbp, .scn, .sct, .scx, .sdb, .sdf,
.sdl, .sel, .sem, .sfpe, .sfpz, .sgn, .shd, .shdb, .shdl, .shs, .skr, .sln, .smf, .smfx, .sna, .snp, .sob, .sobx, .spr, .sql,
.sqlite, .sqm, .sqx, .srx, .ssd, .ssf, .ssp, .sst, .st[0-9]*, .stm, .stop, .str, .sv2i, .svc, .svp, .tab, .tar, .tbb, .tbc, .tbh, .tbi, .tbk, .tbl, .tbn, .tdb, .tgz,
.thm, .tib, .tid, .tmf, .tmp, .tmp0, .tnx, .tpl, .tps, .trc, .trec, .trn, .tst, .twd, .txt, .ua_, .udb, .unf, .upd, .utf, .v2i, .v8i, .vault, .vbe, .vbk, .vbm, .vbx,
.vct, .vcx, .vdb, .vdi, .ver, .vhd, .vhdx, .vib, .viprof, .vlx, .vmcx, .vmdk, .vmem, .vmp, .vmpl, .vmrs, .vmsd, .vmsn, .vmss, .vmx, .vmxf, .vpc, .vrd, .vrfs, .vsd, .vsv,
.vswp, .vvr, .vvv, .wallet, .war, .wav, .wbcat, .wbverify, .wid, .wim, .wnw, .wrk, .wsb, .xch, .xg0, .xls, .xlsb, .xlsm, .xlsx, .xml, .xsc, .xsd, .xstk, .xtbl, .xxx, .xz,
.yg0, .ytbl, .zip, .zrb, .zsp, .zup .БРОНЬ
It also includes an exclusion list which is composed of the following data:
.aes, .ani, .avi, .cab, .cpl, .cur, .dat, .deskthemepack, .diagcab, .diagpkg, .dll, .dmp, .docm, .drv, .exe,
.hlp, .icl, .ico, .icons, .mp3, .mp4, .msp, .msstyles, .mui, .ocx, .rtp, .settingcontent-ms, .sys, .themepack
The victim files are encrypted using the following pattern: “email_ransom-random_ID{16}”
A ransomware note is written in a text file called Dont_Worry.txt which reads the following:
Вся Ваша информация на этом компьютере была зашифрована.
Для расшифровки обратитесь по нижеуказанным контактам.
————————————————————
e-mail: wog@onionmail.info
Ваш код для разблокировки: 42943870
———————————–
Если Вам приходит ответ, что почтовый адрес не существует:
1. Вам не повезло. Адрес заблокировали.
———
Все инструкции вы получите в ответном письме.
————————————————————
An English version of it reads the following:
:
All your information on this computer has been encrypted.
To decrypt refer to the contacts listed below.
————————————————————
e-mail: wog@onionmail.info
Your code for unlock: 42943870
———————————–
If you receive an answer that the mailing address does not exist:
1. You are unlucky. The address was blocked.
———
You will receive all instructions in the reply letter.
————————————————————
As such example victim data can include any of the following:
- Document001.xml.wog@onionmail.info-11baxe9127490064
- Document002.xml.wog@onionmail.info-02cdas3848249010
- Document003.xml.wog@onionmail.info-09eraa2349294190
Remove Dont_Worry Virus and Restore Your Files
If your computer got compromised and is infected with the Dont_Worry ransomware virus, you should have some experience with removing viruses before tampering with it. You should get rid of the ransomware fast before it can spread further on the network and encrypt more files. The recommended action for you is to remove the ransomware completely by following the step-by-step instructions written below.
Martin Beltov
Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.
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Step 1: Scan for Dont_Worry with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall Dont_Worry 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 Dont_Worry 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 Dont_Worry 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 Dont_Worry
Step 5: Try to Restore Files Encrypted by Dont_Worry.
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 Dont_Worry 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.
Dont_Worry-FAQ
What is Dont_Worry Ransomware?
Dont_Worry 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 Dont_Worry 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 Dont_Worry Infect?
Via several ways.Dont_Worry 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 Dont_Worry 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 .Dont_Worry files?
You can't without a decryptor. At this point, the .Dont_Worry 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 .Dont_Worry files successfully, then do not despair, because this virus is still new.
Can I Restore ".Dont_Worry" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Dont_Worry 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 Dont_Worry 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 Dont_Worry ransomware and then remove it without causing any additional harm to your important .Dont_Worry 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 Dont_Worry 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 Dont_Worry Research
The content we publish on SensorsTechForum.com, this Dont_Worry 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 Dont_Worry 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.
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