Little-known anti-malware programs display warnings, which are often identified as false positive. Nevertheless, it is recommended to recheck the file with your antivirus software after downloading.
We do not have a download file for the latest version (1.2), but you can try downloading it from the developer's site
Download version 1.0 from Mac Informer
Version: 1.0
Date update: Feb 16, 2017
File name: umm_ummsite.pkg
Size: 3.5 MB