Sequre Ransomware

Sequre Ransomware Description

The Sequre Ransomware is an encryption ransomware Trojan that PC security researchers first observed in April 2018, in the fourth week of this month. The Sequre Ransomware is delivered using damaged spam email messages that contain corrupted file attachments or embedded links leading to compromised websites. Once the Sequre Ransomware is installed, the Sequre Ransomware carries out an encryption ransomware attack. Threats like the Sequre Ransomware will take the victim's files hostage, making them inaccessible and demanding a ransom payment from the computer user in exchange for restoring access to the victim's data.

How the Sequre Ransomware Trojan Attacks a Computer

The Sequre Ransomware uses a strong encryption method, a combination of the AES and RSA encryptions to make the victim's files inaccessible. The Sequre Ransomware will scan the victim's computer in search for files that can be targeted in its attack. The Sequre Ransomware behaves in a way that is very similar to HiddenTear. However, curiously, the Sequre Ransomware does not seem to be a HiddenTear variant and appears to have been created independently. The Sequre Ransomware targets the user-generated files such as media files and numerous document formats. Some of the files that are encrypted by the Sequre Ransomware attack include:

.3dm, .3g2, .3gp, .7zip, .aaf, .accdb, .aep, .aepx, .aet, .ai, .aif, .as, .as3, .asf, .asp, .asx, .avi, .bmp, .c, .class, .cpp, .cs, .csv, .dat, .db, .dbf, .doc, .docb, .docm, .docx, .dot, .dotm, .dotx, .dwg, .dxf, .efx, .eps, .fla, .flv, .gif, .h, .idml, .iff, .indb, .indd, .indl, .indt, .inx, .jar, .java, .jpeg, .jpg, .js, .m3u, .m3u8, .m4u, .max, .mdb, .mid, .mkv, .mov, .mp3, .mp4, .mpa, .mpeg, .mpg, .msg, .pdb, .pdf, .php, .plb, .pmd, .png, .pot, .potm, .potx, .ppam, .ppj, .pps, .ppsm, .ppsx, .ppt, .pptm, .pptx, .prel, .prproj, .ps, .psd, .py, .ra, .rar, .raw, .rb, .rtf, .sdf, .sdf, .ses, .sldm, .sldx, .sql, .svg, .swf, .tif, .txt, .vcf, .vob, .wav, .wma, .wmv, .wpd, .wps, .xla, .xlam, .xll, .xlm, .xls, .xlsb, .xlsm, .xlsx, .xlt, .xltm, .xltx, .xlw, .xml, .xqx, .xqx, .zip.

Once the Sequre Ransomware encodes the files, they will become identifiable easily because the Sequre Ransomware will change their names following the pattern 'sequre@tuta.io_ [hex code],' with a hex code that seems to be generated depending on the infected file's name and original file extension.

The Sequre Ransomware's Ransom Demands

The Sequre Ransomware will deliver two files to the victim's computer after encrypting the victim's files; an HTA file named 'HOW TO DECRYPT YOUR FILES.hta' and a TXT file named '_HELP_INSTRUCTIONS.txt.' The Sequre Ransomware delivers a ransom note that includes a unique identifier for the victim, a text note asking for a ransom payment, and a Bitcoin wallet address for the victim to make the payment. The Sequre Ransomware demands that the victim communicates with the con artists via email at the address 'tosequre@tuta.io' to make the payment. Computer users must refrain from paying the Sequre Ransomware ransom, which equals 0.14 Bitcoin, or 1300 USD at the current exchange rate approximately.

Protecting Your Data from Threats Like the Sequre Ransomware

The best protection against threats like the Sequre Ransomware is to have file backups stored on independent devices. If your files are backed up, then it is possible to recover from a Sequre Ransomware attack by removing the corrupted files and the Sequre Ransomware threat itself and restoring the affected data from the backup. While the Sequre Ransomware threat itself is not difficult to remove since it can be done by most updated security programs (and in fact, it will often remove itself after the files have been encrypted), the files encrypted by the Sequre Ransomware attack are not recoverable with our current technology. Because of this, file backups are the best method to ensure that your data can be recovered after an attack.

Do You Suspect Your PC May Be Infected with Sequre 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 Sequre 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

Sequre Ransomware creates the following file(s):
# File Name Size MD5
1 file.exe 113,152 c35506bd3fedad57e7f1ea975ebcaec5

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This article is provided "as is" and to be used for educational information purposes only. By following any instructions on this article, you agree to be bound by the disclaimer. We make no guarantees that this article will help you completely remove the malware threats on your PC. Spyware changes regularly; therefore, it is difficult to fully clean an infected machine through manual means.

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