mailruupdater.exe is a program which is most likely legit. So, if mailruupdater.exe is on your system, it is most likely ok, and will NOT be a cause for concern. Even if your system is clean, we still advise you to use a good antivirus with a good track record, in order to yourself yourself against viruses and malware.
Usually, the default name and path where this application is stored is
C:\Program Files\Mail.Ru\MailRuUpdater\MailRuUpdater.exe.
The MD5 checksum for this program is 4ee4d92e9691754feae9fdd890701e37.
This program is set up as a Windows service. This means it runs on your system in background, usually without displaying anything to you. Most Windows services are ok programs, which perform useful functions to other programs or to Windows in general.
This application runs as a 32-bit program. It does not use the full power of nowadays' PC CPUs. This is quite normal because the publishers did not bother to upgrade it to 64-bit code.
The description extracted from the exe is Mail.Ru updater.
File version stored as a property 3.8.0.5.
Company name Mail.Ru.
Legal copyright Copyright 2015.
Some insecure features of Windows have been used, such as functions for intercepting the keyboard. We recommend you to read more about this program.
mailruupdater.exe has a digital signature. Today the large majority of clean programs are digitally signed.
The digital signature extracted from mailruupdater.exe verifies as ok. This is excellent.
Digital certificate name: LLC Mail.Ru
Certificate's issuer name: thawte SHA256 Code Signing CA
It has an uninstall string in registry, which is good. si are uninstall.