There was a download of Mamut Online Backup 4.0.2172.429 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
Mamut Online Backup.exe, Restore.exe and _701f5d03.exe are the most frequent filenames for this program's installer. The actual developer of the software is Mamut Software Ltd.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The following versions: 4.0, 3.1 and 1.0 are the most frequently downloaded ones by the program users. Mamut Online Backup can be installed on 64-bit versions of Windows XP/Vista/7/8/10/11. The software is categorized as System Utilities.
From the developer:
This program allows you to undertake secure and effective backup copies, which are a safe and user friendly form of distribution of your files. With Mamut Online Backup you can make secure backup and restore of your encrypted data, you can invite others to receive and download your data or to continuously receive updated versions of your files, to read, edit, delete and add information in shared files and folders and more.
You may want to check out more software, such as SOS Online Backup, DriveHQ Online Backup or Online Backup Estimator, which might be related to Mamut Online Backup.
Reference
Backup & Restore