Do you know how to get rid of ssrangsv.exe

Part 1 of 2

Any Third Party Applications that will interfere with the normal operation of the OS,  is an invitation for disaster and comprise the Operating System

Certain Applications maybe available on the Apple Apps Store - this only means the Developer is prepared to pay Apple a portion on each sale. What the Application may do to the computer is up to the User to check this out before purchase

Any of the below should be removed as per Developers Instructions 

This will include CleanMyMac ,

Read some of the posting and arrive at your own conclusions.

Part 2 of 2

Specific to CMM ( CleanMyMac ) aka " BrickMyMac "

Some Contributors suggest removing CleanMyMac and then restarting in Recovery Mode and choosing to Reinstall the Operating System over  the existing installation. 

This may or may not replace elements of the Entire Operating System including the Home Folder ( User Account )  and replace any corrupted or removed elements of the Operating System and make thing right.

Then there are Other Contributors ( like myself ) would suggest from this link Use Disk Utility to erase a Mac with Apple silicon.

For Intel computer >> Use Disk Utility to erase an Intel-based Mac followed by How to reinstall macOS

Thereafter to start from scratch and install all Required Application directly from the Apple Apps Store or Directly from the Developer.

If going this route - I suggest Not using Startup Assist to migrate things back as this will probably Re-Introduce the existing  issue that existed when the TM Backup was made 

Well, first of all, this file is a Windows executable file that does not run on or affect a Mac. That means it is likely either a Windows malware or a Windows virus that you allowed to be installed somewhere you visited. A quick Google search reveals this file plagues Windows users. As for removing it that may be more complicated. I would suggest you download the free version of Malwarebyes for the Mac and run a scan.

Malwarebytes is a well known and longtime malware troubleshooting and removal tool used by the Mac community here.

https://www.malwarebytes.com/

That doesn’t say ssrangsrv.exe, it’s just ssrangsrv. It is some background process that you installed. Well, you installed some app, and it has always been running that background process behind your back. Now, Apple notifies you that it is running which confuses you because you think it is nefarious now that you know about it, but it was fine when you didn’t know about it.

I can’t tell you what software you installed that is running it. You’d have to look at what system modifications you installed and see if any of those do that. Another option is to uninstall each of the system modifications you installed. If the notifications stop, that was it.

What you installed could entirely be nefarious as Apple doesn’t really try to stop you if you really want to install something. You may have installed something you thought was legit, but it bundled in something else.

After some bit of searching, that process may be related to some anti-virus software called Nexus. Or, maybe the developer is Nexus.

Your best bet at determining what you have installed is EtreCheck. It will list the items that install stuff in the background, but may not specifically tie ssrangsrv to a particular app.

While there is a paid version, you don’t need it. The basic version is free to use for this purpose.

There are no known Windows-like Viruses in the wild that self replicate and affect macOS, because of the underling UNIX  Foundation and Permission Limitation. 

Additionally, specific to Big Sur macOS 11 and above.

The Operating System resides in a Sealed and Read Only Volume that can not be opened by the User.

The Only thing this Antivirus software is protecting is the Bank Account of the Developers and for zero return to the User aside from the problems this software creates.

AntiVirus Developers purposefully Market their product to create a “ Fear Factor “. In so doing, creating a False Need for their Product.

The The Built in Security  is all that is required to protect the computer.

If it turns out to be as suggested - will add it to my list of Bad Actors.