afwserv.exe is a program which is probably legit. So, if afwserv.exe is on your system, it is probably ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to purchase a good antivirus with a good track record, in order to yourself yourself against potential security problems.
This application is usually found on disk in C:\Program Files\AVAST Software\Avast\afwServ.exe.
The MD5 fingerprint for this program is caa9bb913356e9fd56761c9352b7054b.
This application is a Windows service. This means it operates on your system in background, usually without displaying anything to you. Most Windows services are useful programs, which perform useful features to other applications or to Windows in general.
This program uses the net to communicate. In this day and age this is expected from a program. For example, most of the programs on your PC check for new updates. For this, Internet communications are necessary.
This application runs as a 32-bit program. It does not benefit of the entire set of features of current PC processors. This is quite normal because the publishers did not upgrade it to 64-bit code.
The description extracted from the file is avast! firewall service.
File version stored as a property 12.3.3154.0.
Company name AVAST Software.
Legal copyright Copyright (c) 2014 AVAST Software.
Some unusual features of the Operating System appear to be used, such as functions for recording the keyboard. We advise you to be very careful regarding this program.
afwserv.exe has a digital signature. Nowadays most serious programs are digitally signed.
The digital signature found in afwserv.exe verifies as ok. This is very good.
Digital certificate name: AVAST Software a.s.
Certificate's issuer name: DigiCert High Assurance Code Signing CA-1
It has an uninstall string in registry, which is good. si are uninstall.