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THREAT REMOVAL

DotRansomware RaaS Remove and Restore Files


This article aims to help you remove the iterations of DotRansomware and restore your files (.locked file extension) if they have been encrypted by it.

A ransomware-as-a-service virus, calling itself DotRansomware has appeared on the deep web. The virus has been created in English and is highly modifiable. It also uses AES encryption algorithm to encode the files on the victims’ computers. This encryption is sophisticated and generates a unique decryption key. The virus comes with it’s custom sales page which is oriented primarily towards selling it to people who want to infect users with it. The ransomware virus uses the TOR networking system to infect various users and hence remain untraceable. In case you have been infected by DotRansomware, recommendations are to read the following material and learn what DotRansomware exactly performs and how to neutralize it and try getting back the data.

Threat Summary

Name

DotRansomware

TypeRansomware
Short DescriptionThe malware is offered online as a part of a scheme to distribute it in a final variant for 50% of the ransom the victims pay for their files encrypted by the virus.
SymptomsThe user may witness ransom notes and “instructions” linking to a web page and a decryptor. Changed file names and the file-extension .locked has been used but may be changed with different versions.
Distribution MethodVia an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner. Depends on who is part of the RaaS scheme and spreads it.
Detection Tool See If Your System Has Been Affected by DotRansomware

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Malware Removal Tool

User ExperienceJoin our forum to Discuss DotRansomware.
Data Recovery ToolWindows 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.

How Does DotRansomware Spread

This particular virus is advertised online to absolutely everyone who has access to some particular areas of the deep web. This means that DotRansomware may spread depending on what the cyber-criminal decides. Typically most cyber-criminals choose e-mail spam messages with deceitful content, like the example picture below shows:

Such e-mails aim to get the user to open malicious e-mail attachment which is the infection malware that downloads the payload of DotRansomware, in this hypothetical scenario.

However, there are many other methods by which this ransomware infection could infect users:

  • Via fake installers or updates downloaded from shady websites.
  • If the user activates a fake patch for cracking unlicensed software, usually downloaded from torrent websites.
  • Via other malware that has previously infected a computer.
  • Via potentially unwanted program (PUP) that aims to perform an infection via multiple different advertisements, redirects or pop-ups.

DotRansomware – Further Analysis

The virus has been uploaded on a TOR-based web page and as soon as you open it, the terms of the developers immediately become evident:

The cyber-criminals offer as much as half of the extorted money paid by the victim to the one who distributes their own version of DotRansomware. The registration process of the virus is also quite simple. All one needs to begin infecting is a BitCoin address. As tempting as it sounds, this is quite the risk and at the end, trusting cyber-criminals is never a good idea at all.

During the infection process, DotRansomware may drop multiple malicious files on the computers it compromises. The files may have different names and may be located in different Windows folders, for example:

The official file extension of the DotRansomware virus is .locked, but the ransomware may undergo some changes, it really depends on how it is configured:

Image Source: id-ransomware.blogspot.bg

Amongst the files types this virus encrypts are around 400 different files that are connected with various programs that are used on a daily basis:

→.001, .1dc, .3ds, .3fr, .7z, .a3s, .acb, .acbl, .accdb, .act, .ai, .ai3, .ai4, .ai5, .ai6, .ai7, .ai8, .aia, .aif, .aiff, .aip, .ait, .anim, .apk, .arch00, .ari, .art, .arw, .asc, .ase, .asef, .asp, .aspx, .asset, .avi, .bak, .bar, .bay, .bc6, .bc7, .bgeo, .big, .bik, .bkf, .bkp, .blob, .bmp, .bsa, .c, .c4d, .cap, .cas, .catpart, .catproduct, .cdr, .cef, .cer, .cfr, .cgm, .cha, .chr, .cld, .clx, .cpp, .cr2, .crt, .crw, .cs, .css, .csv, .cxx, .d3dbsp, .das, .dat, .dayzprofile, .dazip, .db, .db0, .dbf, .dbfv, .dcr, .dcs, .der, .desc, .dib, .dlc, .dle, .dlv, .dlv3, .dlv4, .dmp, .dng, .doc, .docm, .docx, .drf, .dvi, .dvr, .dwf, .dwg, .dxf, .dxg, .eip, .emf, .emz, .epf, .epk, .eps, .eps2, .eps3, .epsf, .epsp, .erf, .esm, .fbx, .ff, .fff, .fh10, .fh11, .fh7, .fh8, .fh9, .fig, .flt, .flv, .fmod, .forge, .fos, .fpk, .fsh, .ft8, .fxg, .gdb, .ge2, .geo, .gho, .gz, .h, .hip, .hipnc, .hkdb, .hkx, .hplg, .hpp, .hvpl, .hxx, .iam, .ibank, .icb, .icxs, .idea, .iff, .iiq, .indd, .ipt, .iros, .irs, .itdb, .itl, .itm, .iwd, .iwi, .j2k, .java, .jp2, .jpe, .jpeg, .jpf, .jpg, .jpx, .js, .k25, .kdb, .kdc, .kf, .kys, .layout, .lbf, .lex, .litemod, .lrf, .ltx, .lvl, .m, .m2, .m2t, .m2ts, .m3u, .m4a, .m4v, .ma, .map, .mat, .max, .mb, .mcfi, .mcfp, .mcgame, .mcmeta, .mdb, .mdbackup, .mdc, .mddata, .mdf, .mdl, .mdlp, .mef, .mel, .menu, .mkv, .mll, .mlx, .mn, .model, .mos, .mp, .mp4, .mpqge, .mrw, .mrwref, .mts, .mu, .mxf, .nb, .ncf, .nef, .nrw, .ntl, .obm, .ocdc, .odb, .odc, .odm, .odp, .ods, .odt, .omeg, .orf, .ott, .p12, .p7b, .p7c, .pak, .pct, .pcx, .pdd, .pdf, .pef, .pem, .pfx, .php, .php4, .php5, .pic, .picnc, .pkpass, .png, .ppd, .ppt, .pptm, .pptx, .prj, .prt, .prtl, .ps, .psb, .psd, .psf, .psid, .psk, .psq, .pst, .ptl, .ptx, .pwl, .pxn, .pxr, .py, .py, .qdf, .qic, .r3d, .raa, .raf, .rar, .raw, .rb, .rb, .re4, .rgss3a, .rim, .rofl, .rtf, .rtg, .rvt, .rw2, .rwl, .rwz, .sav, .sb, .sbx, .sc2save, .sdf, .shp, .sid, .sidd, .sidn, .sie, .sis, .skl, .skp, .sldasm, .sldprt, .slm, .slx, .slxp, .snx, .soft, .sqlite, .sqlite3, .sr2, .srf, .srw, .step, .stl, .stp, .sum, .svg, .svgz, .swatch, .syncdb, .t12, .t13, .tar, .tax, .tex, .tga, .tif, .tiff, .tor, .txt, .unity3d, .uof, .uos, .upk, .vda, .vdf, .vfl, .vfs0, .vpk, .vpp_pc, .vst, .vtf, .w3x, .wallet, .wav, .wb2, .wdx, .wma, .wmo, .wmv, .wotreplay, .wpd, .wps, .x3f, .xf, .xl, .xlk, .xls, .xlsb, .xlsm, .xlsx, .xvc, .xvz, .xxx, .ycbcra, .yuv, .zdct, .zip, .ztmp

These important files are rendered no longer openable and the virus also has a ransom note which can be customized. Malware researchers believe that it may be somehow connected to Unlock26 ransomware – a relatively new virus that hit the wild recently.

Remove DotRansomware and Try Getting Back the Files

In case you have been infected by an instance of this ransomware infection on your computer, the first deal of business is to immediately back up the encrypted files.

Then, experts recommend removing this ransomware infection from your computer with the one and only purpose of creating a safe environment to try the methods In step “2. Restore files encrypted by DotRansomware” below. In case you have difficulties in manually removing this ransomware infection from your computer, reccomendations are to focus on scanning your computer with an advanced anti-malware software. It will fully remove all files associated with this threat and make sure to protect your computer in the future as well.

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Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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