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Home › Virus › Remove CrypMIC virus (Restore encrypted files)

Remove CrypMIC virus (Restore encrypted files)

Myantispyware team July 22, 2016     No Comment    

CrypMIC is a new virus from a family of file-encrypting ransomware. Once started, it have encrypted your personal files stored on a computer drives and attached network drives.

CrypMIC ransomscreen

It uses very strong hybrid encryption with a large key. Once the virus finished enciphering of all files, it will create a file named “README.TXT” with an instructions on how to decrypt all encrypted files. CrypMIC virus offers to make a payment in Bitcoins to get a a special software called Microsoft Decryptor to decrypt files.

Microsoft Decryptor

Important to know, currently not possible to decrypt the files encrypted by the ransomware without the private key and decrypt program. If you choose to pay the ransom, there is no 100% guarantee that you can get back your files! If you do not want to pay for a decryption key, then you have a chance to restore your files. Use the step-by-step guide below to remove the virus itself and try to restore your files.

What is CrypMIC ransomware?
Is my system infected with CrypMIC ransomware?
How to decrypt encrypted files ?
How to download Microsoft Decryptor for free ?
How to remove CrypMIC virus?
How to restore encrypted files ?
How to prevent my computer from becoming infected by CrypMIC ransomware?

What is CrypMIC ransomware?

CrypMIC is a variant of ransomware infection. It affects all current versions of Windows operating systems such as Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10. This virus uses a hybrid AES + RSA encryption mode to eliminate the possibility of brute force a key, which will allow to decrypt all encrypted files.

When the virus infects a computer, it uses system directories to store own files. To run automatically whenever you turn on your computer, CrypMIC ransomware creates a registry entry in Windows: sections HKCU \ Software \ Microsoft \ Windows \ CurrentVersion \ Run, HKCU \ Software \ Microsoft \ Windows \ CurrentVersion \ RunOnce, HKCU \ Software \ Microsoft \ Windows \ CurrentVersion \ Run, HKCU \ Software \ Microsoft \ Windows \ CurrentVersion \ RunOnce.

Immediately after the launch, the virus scans all available drives, including network and cloud storage, to determine which files will be encrypted. The ransomware uses the file name extension, as a way to define a group of files that will be subjected to encrypting. Encrypted almost all types of files, including common as:

0, .1, .1st, .2bp, .3dm, .3ds, .sql, .mp4, .7z, .rar, .m4a, .wma, .avi, .wmv, .csv, .d3dbsp, .zip, .sie, .sum, .ibank, .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, .py, .m3u, .flv, .js, .css, .rb, .png, .jpeg, .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, .pptm, .pptx, .ppt, .xlk, .xlsb, .xlsm, .xlsx, .xls, .wps, .docm, .docx, .doc, .odb, .odc, .odm, .odp, .ods, .odt, .wav, .wbc, .wbd, .wbk, .wbm, .wbmp, .wbz, .wcf, .wdb, .wdp, .webdoc, .webp, .wgz, .wire, .wm, .wma, .wmd, .wmf, .wmv, .wn, .wot, .wp, .wp4, .wp5, .wp6, .wp7, .wpa, .wpb, .wpd, .wpe, .wpg, .wpl, .wps, .wpt, .wpw, .wri, .ws, .wsc, .wsd, .wsh, .x, .x3d, .x3f, .xar, .xbdoc, .xbplate, .xdb, .xdl, .xld, .xlgc, .xll, .xls, .xlsm, .xlsx, .xmind, .xml, .xmmap, .xpm, .xwp, .xx, .xy3, .xyp, .xyw, .y, .yal, .ybk, .yml, .ysp, .z, .z3d, .zabw, .zdb, .zdc, .zi, .zif, .zip, .zw

The virus creates the files named “README.TXT” that contain instructions on how to decrypt all encrypted files. An example of these instructions:

NOT YOUR LANGUAGE? USE https://translate.google.com

What happened to your files ?
All of your files were protected by a strong encryption with RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSAicryptosystem)

How did this happen ?
!!! Specially for your PC was generated personal RSA4096 Key, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server

What do I do ?
So , there are two ways you can choose: wait for a _miracle_ and get _your_ PRICE DOUBLED! Or start obtaining RBITCOIN NOW!, and restore _Y( If You have really valuable _DATA_, you better _NOT_ _WASTE_ _YOUR_ _TIME_, because there is _NO_ other way to get your files, except make

Your personal ID:

CrypMIC ransomware actively uses scare tactics by giving the victim a brief description of the encryption algorithm and showing a threatening message on the desktop. It is trying to force the user of the infected computer, do not hesitate to pay a ransom, in an attempt to recover their files.

Is my system infected with CrypMIC ransomware?

Identify that your computer is infected with CrypMIC ransomware quite easily. If your personal files, such as documents, photos, music does not open normally, that is, for example, when you try to open a document, Word reports that it is an unknown file type, then it is likely that the document is encrypted, and your computer is infected. Of course, the presence on the desktop a ransom screen or threatening message is a sign of infection.

If you suspect that you have opened a email that infected with CrypMIC ransomware, but you does not see any symptoms of the infection, then do not turn off or restart your computer. First turn off the Internet! Then follow the steps in this guide, see How to remove the CrypMIC virus. Another option, shut down the computer, remove the hard drive and check it on another computer.

How to decrypt encrypted files

Currently there is no available method to decrypt your files. The ransomware repeatedly tells the victim that uses a strong encryption algorithm. What does it mean to decrypt the files is impossible without the private key. Use a “brute forcing” method is also not a way because of the big length of the key. Therefore, unfortunately, the only payment to the authors of the CrypMIC ransomware entire amount requested – the only way to try to get the decryption key.

There is absolutely no guarantee that after the payment of the authors of the CrypMIC ransomware will provide the necessary key to decrypt your files. In addition, you must understand that paying money to the cyber criminals, you are encouraging them to create a new virus.

How to download Microsoft Decryptor for free

The cyber criminals offers to pay a ransom to get a chance to decrypt your files. Microsoft Decryptor is your private key + special decrypt software. Now, there is no available method to decrypt your files for free, but you can try to restore them. Use a free software, such as ShadowExplorer and PhotoRec. Follow the instructions.

How to remove CrypMIC virus

The following instructions will help you to remove CrypMIC malicious software. Before doing it, you need to know that starting to remove the virus, you may block the ability to decrypt files by paying authors of the virus requested ransom.

Kaspersky Virus Removal Tool and Malwarebytes Anti-malware can detect different types of active ransomware and easily remove it from your computer, but they can not recover encrypted files.

Remove CrypMIC virus with MalwareBytes Anti-malware

Download MalwareBytes Anti-malware (MBAM) from the link below.

MalwareBytes Anti-malware download link

Once downloaded, close all programs and windows on your computer. Open a directory in which you saved it. Double-click on the icon that named mbam-setup like below.

Malwarebytes Anti-Malware setup file icon

When the installation begins, you will see the Setup – Wizard that will help you install MalwareBytes Anti-malware on your computer.

Malwarebytes Anti-Malware installation

Once installation is complete, you will see window similar to the one below.

Malwarebytes scan now

Now click on the Scan Now button to start scanning your computer. This procedure can take some time, so please be patient.

Malwarebytes detects istartsurf

When the scan is finished, make sure all entries have “checkmark” and click Remove Selected button. MalwareBytes Anti-malware will start to remove ransoware related files, folders, registry keys. Once disinfection is completed, you may be prompted to Restart.

Remove CrypMIC virus with Kaspersky virus removal tool

Download Kaspersky virus removal tool from here and save it directly to your Windows Desktop.

Double-click on the KVRT icon found on your desktop. Once initialization process is finished, you will see the Kaspersky virus removal tool screen as shown below.

kvrt main window

Click Change Parameters and set a check near all your drives. Click OK to close the Parameters window. Next click Start scan button. Kaspersky virus removal tool will now start scanning your computer for known infections. This procedure can take some time, so please be patient.

kaspersky virus removal tooll scanning

When KVRT has finished scanning, you will see a screen like shown below.

kvrt scan report

Click on Continue to start a cleaning process.

How to restore encrypted files

In some cases, you can recover files encrypted by ransomware. Try both methods. Important to understand that we cannot guarantee that you will be able to recover all encrypted documents, photos and other files.

Restore encrypted files with ShadowExplorer

Download ShadowExplorer from the following link.

ShadowExplorer download link

Open a directory in which you saved it. Right click to ShadowExplorer-0.9-portable and select Extract all. Follow the prompts. Next please open the ShadowExplorerPortable folder as shown below.

ShadowExplorer folder

Double click ShadowExplorerPortable to run it. You will see the following screen.

ShadowExplorer

In top left corner, select a Drive and a latest restore point as shown on the example below (1 – drive, 2 – restore point).

ShadowExplorer

On right panel look for a file that you want to restore, right click to it and select Export. An example below.

ShadowExplorer restore file

Restore encrypted files with PhotoRec

Download PhotoRec from the link below.

PhotoRec download link

Open a directory in which you saved it. Right click to testdisk-7.0.win and select Extract all. Follow the prompts. Next please open the testdisk-7.0 folder as shown below.

testdisk photorec folder

Double click on qphotorec_win to run PhotoRec for Windows. It will open a screen like below.

PhotoRec for windows

Select a drive to recover from as shown below.

photorec select drive

You will see a list of available partitions. Select a partition that holds the lost and encrypted files. An example below.

photorec select partition

Click on File Formats button and select file types to recover. You can to enable or disable the recovery of certain file types. When this is done, click OK button.

PhotoRec file formats

Next, click Browse button to select where recovered files should be written, then click Search.

photorec

Count of recovered files is updated in real time. All recovered files are written in a folder that you have selected on the previous step. You can to access the files even if the recovery process is not finished.

When the recovery is completed, click on Quit button. Next, open the directory where recovery files are stored. You will see a contents like below.

PhotoRec - result of recovery

All recovered files are written in recup_dir.1, recup_dir.2 … sub-directories. If you are looking for a specific file, then you can to sort your recovered files by extension and/or date/time.

How to prevent my computer from becoming infected by CrypMIC ransomware?

Most antivirus programs already have built-in protection system against the ransomware. Therefore, if your computer does not have an antivirus program, make sure you install it. As an extra protection, use the CryptoPrevent.

Download CryptoPrevent from the link below.

www.foolishit.com/download/cryptoprevent/

Run it and follow the setup wizard. Once the installation is completed, you will be shown a window where you can select a level of protection, as shown in the following example.

CryptoPrevent

Click the Apply button to activate the protection.

The End.

Your computer should now be free of the CrypMIC virus infection. If you need help with the instructions, then ask for help here.

Virus

Author: Myantispyware team

Myantispyware is an information security website created in 2004. Our content is written in collaboration with Cyber Security specialists, IT experts, under the direction of Patrik Holder and Valeri Tchmych, founders of Myantispyware.com.

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