UmbreCrypt Ransomware

Also Known As: UmbreCrypt virus
Distribution: Low
Damage level: Severe

UmbreCrypt ransomware removal instructions

What is UmbreCrypt?

UmbreCrypt (an updated version of HYDRACRYPT) is ransomware that encrypts file formats such as .jpeg, and .doc, adding an 'umbrecrypt_ID_youruniqueID' extension to each affected file. Once the files are successfully encrypted, user are presented with a message containing all information regarding the encryption. The message states that users must pay a ransom in exchange for software to decrypt the files. If the ransom is not paid within the given time frame, decryption will become impossible.

Users are given 72 hours to buy decryption software. The message encourages them to contact the developers of UmbreCrypt to receive further instructions on how to pay. The size of the ransom is currently unknown - all information is provided via individual emails. Ransomware such as UmbreCrypt usually demand a 0.5-1.5 BitCoin ransom (at time of research, equivalent to US$189.97 to US$569.92). Users are allowed to send one encrypted file to the cyber criminals who will supposedly return a decrypted version as a guarantee. Files are encrypted using the RSA-2048 encryption and, therefore, can only be decrypted using a unique private key, which is stored on remote servers controlled by the cyber criminals. Unfortunately, at time of writing, there were no tools capable of decrypting files affected by UmbreCrypt. Therefore, the only solution to this problem is to restore your files from a backup.

Screenshot of a message encouraging users to contact the developers of UmbreCrypt ransomware to decrypt their compromised data:

UmbreCrypt decrypt instructions

There are dozens of ransomware programs sharing similarities with UmbreCrypt including CryptoWall, DMA-Locker, and CryptoJoker. The only differences between these malware infections is the encryption algorithm used and size of ransom. Be aware that paying the ransom will not result in decryption of your files - you simply support the malicious business of cyber criminals. UmbreCrypt, and other ransomware, is often distributed via fake software updates, trojans, P2P networks (for example, Torrents), and malicious email attachments. Therefore, it is important to express caution when downloading files from untrusted sources and opening files received from unrecognized emails. Furthermore, you should keep your installed software up-to-date and use a legitimate anti-spyware or anti-virus suite.

Update 14 February 2016 - Emsisoft research team were able to develop a decrypter to regain control of the UmbreCrypt compromised files free of charge. Download it HERE. More information on how to use this tool HERE.

Text presented in the message displayed by UmbreCrypt:

Attention! All your main files were encrypted!


Your personal files (documents, databases, jpeg, docx, doc, etc.) were encrypted, their further using impossible. Encryption was made using a unique public key RSA-2048 generated for this computer.





You have only 72 hours from the moment when an encryption was done to buy our software with a loyal price, the payment amount will be increased multiple after the lapse of 72 hours.

Any attempts to remove this encryption will be unsuccessful. You cannot do this without our software with your key.

Do not send any emails with threats and rudeness to us. Example of email format: “Hi, I need a decryption of my files. My ID number is…” (instead of three dots should be you ID number which could be found in the same folder where the encrypted files, also your ID number is shown on this picture)

Contact us by email only, send us an email along with your ID number and wait for further instructions. Our specialist will contact your within 12 hours.

For you to be sure, that we can decrypt your files - you can send us a single encrypted file and we will send you back it in a decrypted form. This will be your guarantee.


Contact information:



UmbreCrypt encrypts the following file types:

.sql, .mp4, .7z, .rar, .m4a, .wma, .avi, .wmv, .csv, .d3dbsp, .zip, .sie, .unrec, .scan, .sum, .t13, .t12, .qdf, .gdb, .tax, .pkpass, .bc6, .bc7, .bkp, .qic, .bkf, .sidn, .sidd, .mddata, .itl, .itdb, .icxs, .hvpl, .hplg, .hkdb, .mdbackup, .syncdb, .gho, .cas, .svg, .map, .wmo, .itm, .sb, .fos, .mov, .vdf, .ztmp, .sis, .sid, .ncf, .menu, .layout, .dmp, .blob, .esm, .vcf, .vtf, .dazip, .fpk, .mlx, .kf, .iwd, .vpk, .tor, .psk, .rim, .w3x, .fsh, .ntl, .arch00, .lvl, .snx, .cfr, .ff, .vpp_pc, .lrf, .m2, .mcmeta, .vfs0, .mpqge, .kdb, .db0, .dba, .rofl, .hkx, .bar, .upk, .das, .iwi, .litemod, .asset, .forge, .ltx, .bsa, .apk, .re4, .sav, .lbf, .slm, .bik, .epk, .rgss3a, .pak, .big, .wallet, .wotreplay, .xxx, .desc, .m3u, .flv, .js, .css, .rb, .png, .txt, .p7c, .p7b, .p12, .pfx, .pem, .crt, .cer, .der, .x3f, .srw, .pef, .ptx, .r3d, .rw2, .rwl, .raw, .raf, .orf, .nrw, .mrwref, .mef, .erf, .kdc, .dcr, .cr2, .crw, .bay, .sr2, .srf, .arw, .3fr, .dng, .jpe, .jpg, .cdr, .indd, .ai, .eps, .pdf, .pdd, .psd, .dbf, .mdf, .wb2, .rtf, .wpd, .dxg, .xf, .dwg, .pst, .accdb, .mdb, .ppt, .xlk, , .xls, .wps, .doc, .odb, .odc, .odm, .odp, .odt, .dx, .mrw, .nef, .tiff, .bd, .tar.gz, .mkv, .bmp, .dot, .xml, .pps, .dat, .ods, .qba, .qbw, .ini.$$$, .$db, .001, .002, .003, .113, .73b, .__a, .__b, .ab, .aba, .abbu, .abf, .abk, .acp, .acr, .adi, .aea,.afi, .arc, , .as4, .asd, .ashbak, .asv, .asvx, .ate, .ati, .bac, .backup, .backupdb, .bak2, .bak3, .bakx, .bak~, .bbb, .bbz, .bck, .bckp, .bcm, .bdb, .bff, .bif, .bifx, .bk1, .bkc, .bkup, .bkz, .blend1, .blend2, .bm3, .bmk, .bpa, .bpb, .bpm, .bpn, .bps, .bup, .caa, .cbk, .cbs, .cbu, .ck9, .cmf, .crds, .csd, .csm, .da0, .dash, .dbk, .dim, .diy, .dna, .dov, .dpb, .dsb, .fbc, .fbf, .fbk, .fbu, .fbw, .fh , .fhf, .flka, .flkb, .fpsx, .ftmb, .ful, .fwbackup, .fza, .fzb, .gb1, .gb2, .gbp, .ghs, .ibk, .icbu, .icf, .inprogress, .ipd, .iv2i, .jbk, .jdc, .kb2, .lcb, .llx, .mbf, .mbk, .mbw, .mdinfo, .mem, .mig, .mpb, .mv_, .nb7, .nba, .nbak, .nbd, .nbf, .nbi, .nbk, .nbs, .nbu, .nco, .nda, .nfb, .nfc, .npf, .nps, .nrbak, .nrs, .nwbak, .obk, .oeb, .old, .onepkg, .ori, .orig, .oyx, .paq, .pba, .pbb, .pbd, .pbf, .pbj, .pbx5script, .pbxscript, .pdb, .pqb, .pqb-backup, .prv, .psa, .ptb, .pvc, .pvhd, .qbb, .qbk, .qbm, .qbmb, .qbmd, .qbx, .qic, .qsf, .qualsoftcode, .quicken2015backup, .quickenbackup, .qv~, .rbc, .rbf, .rbk, .rbs, .rdb, .rgmb, .rmbak, .rrr, .sav, .sbb, .sbs, .sbu, .sdc, .sim, .skb, .sme, .sn1, .sn2, .sna, .sns, .spf, .spg, .spi, .sps, .sqb, .srr, .stg, .sv$, .sv2i, .tbk, .tdb, .tibkp, .tig, .tis, .tlg, .tmp, .tmr, .trn, .ttbk, .uci, .v2i, .vbk, .vbm, .vbox-prev, .vpcbackup, .vrb, .wbb, .wbcat, .wbk, .win, .wjf, .wpb, .wspak, .xbk, .xlk, .yrcbck, .~cw

UmbreCrypt ransomware removal:

Instant automatic removal of UmbreCrypt virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of UmbreCrypt virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the UmbreCrypt virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the UmbreCrypt ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining UmbreCrypt ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of UmbreCrypt are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by UmbreCrypt, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

 To protect your computer from file encrypting ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and Malwarebytes Anti-Ransomware, which artificially implant group policy objects into the registry to block rogue programs such as UmbreCrypt ransomware.)

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove UmbreCrypt ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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UmbreCrypt virus QR code
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Platform: Windows

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