qhactivedefense.exe is a application which is probably legit. So, if qhactivedefense.exe is on your computer, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a good antivirus with a good detection rate, in order to defend yourself against threats.
Normally, this program is located in C:\Program Files (x86)\360\Total Security\safemon\QHActiveDefense.exe.
The MD5 fingerprint for this file is d67eabb142db24f65b15241952eeb3af.
This program is set up as a Windows service. This means it operates on your system in background, usually without showing anything to you. Most Windows services are legit programs, which perform useful features to other applications or to the Windows Operating System.
This executable runs in 32-bit mode. It does not use the entire power of nowadays' PC processors. This ordinarily happens because the authors did not upgrade it to use the x64 instruction set.
The description stored in the program is 360 Total Security.
File version stored as a property 10,0,0,1014.
Publisher Qihoo 360 Technology Co. Ltd..
Copyright notice (C) Qihoo 360 Technology Co. Ltd., All rights reserved..
Some dangerous functions of Windows have been used, such as functions for tapping the keyboard. We recommend you to perform more in-depth research about this program.
qhactivedefense.exe is digitally signed. Nowadays the large majority of virus-free programs are digitally signed.
The digital signature attached to qhactivedefense.exe checks out perfectly. This is most likely a clean, ok program.
Digitally signed by: QIHU 360 SOFTWARE CO. LIMITED
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
This executable does NOT have a removal routine stored in registry.