It is possible that this is a typo, a highly obscure or proprietary file naming convention, or a randomly generated string of characters. Here is a brief analysis of potential interpretations:
Security databases do not list "DSmowmp4" as a known virus, ransomware, or malicious script. DSmowmp4
If you encountered this term in a specific file or system, please consider checking the following: It is possible that this is a typo,
Based on a thorough search, there is no recognized technology, software, file format, malware, or project known as "DSmowmp4." there is no recognized technology
Where did this file or term come from? (Email attachment, downloaded from a specific website, generated by a program?)