Crypren Ransomware

Crypren Ransomware Description

The Crypren Ransomware is a ransomware infection that replaces the victim's files' extension with the extension '.ENCRYPTED' after encrypting them using the RSA-2048 encryption. The Crypren Ransomware demands the payment of $250 USD to decrypt the victim's files. It may not be possible to recover from these infections, which may require that computer users wipe their hard drive and recover their files from a backup. However, there is currently a decryption utility available, although it may be difficult to run the utility in a Windows OS since its creator made it on Linux.

How the Crypren Ransomware may Enter a Computer

The Crypren Ransomware may be distributed through corrupted email attachments distributed through spam email. The most common emails associated with the Crypren Ransomware may claim to be associated with a shipping firm like FedEx or DHL and contain a bogus notification on a shipment. When computer users open an attached file or click on an embedded link in these corrupted email messages, the Crypren Ransomware is installed on the victim's computer. As soon as the Crypren Ransomware enters the victim's computer, it begins encrypting the victim's files.

Analyzing the Crypren Ransomware Infection

The Crypren Ransomware uses its encryption algorithm to encrypt the victim's files. The following are the files that are targeted by the Crypren Ransomware and similar ransomware threats (new files may be added to this list every day):

.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.

Once your files are encrypted, the Crypren Ransomware changes their extensions. The Crypren Ransomware also drops text and HTML files containing payment information and a ransom note in each directory where files were encrypted. The Crypren Ransomware also changes the affected computer's Desktop image so it will also display a ransom note. The Crypren Ransomware also deletes Shadow Volume Copies of affected files as well as System Restore points, making these recovery methods ineffective.

The content of the ransom note that has been associated with the Crypren Ransomware is the following:


Your data (photos, documents, databases, etc.) have been encrypted with a private and unique key generated for this computer. This means that you will not be able to access your files anymore until they are decrypted. The private key is stored in our servers and the only way to receive key to decrypt your files is making payment.

The payment has to be done in Bitcoin to a unique address that we generated for your. Bitcoins are the virtual currency to make online payments. If you don’t know how to get Bitcoins, you can cluck the button 'How to buy Bitcoins” below and follow the instructions. If you have problem with this task use Internet.

You have only 1 week to submit the payment. When this time ends, the unique key will be destroyed and you won’t be able to recover your files anymore. Your unique key will be destroyed in 1 week from encryption! To recover your files, you must send 0,1 Bitcoins (~$37) to the next Bitcoin address: –

Dealing with the Crypren Ransomware

Although there is currently a decryption utility for the Crypren Ransomware, it may be impossible to recover from similar ransomware threats. Therefore, the best method for dealing with the Crypren Ransomware and similar threats is prevention. PC security analysts strongly recommend that computer users keep a backup of their files on an external memory device.

Do You Suspect Your PC May Be Infected with Crypren Ransomware & Other Threats? Scan Your PC with SpyHunter

SpyHunter is a powerful malware remediation and protection tool designed to help provide PC users with in-depth system security analysis, detection and removal of a wide range of threats like Crypren Ransomware as well as a one-on-one tech support service. Download SpyHunter's FREE Malware Remover
Note: SpyHunter's scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read more on SpyHunter. Free Remover allows you to run a one-off scan and receive, subject to a 48-hour waiting period, one remediation and removal. Free Remover subject to promotional details and Special Promotion Terms. To understand our policies, please also review our EULA, Privacy Policy and Threat Assessment Criteria. If you no longer wish to have SpyHunter installed on your computer, follow these steps to uninstall SpyHunter.

Security Doesn't Let You Download SpyHunter or Access the Internet?

Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
  • Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
  • Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
  • Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in "Safe Mode with Networking" and install SpyHunter in Safe Mode.
  • IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.
If you still can't install SpyHunter? View other possible causes of installation issues.

Technical Information

File System Details

Crypren Ransomware creates the following file(s):
# File Name Size MD5 Detection Count
1 %ALLUSERSPROFILE%k.exe 818,688 f6a8d7a4291c55020101d046371a8bda 1

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