Guys you are wrong. You was born yesterday or newcomers in mining ?
Let's see.
Original Cgminer from http://ck.kolivas.org/apps/cgminer/
You can take any version you like, for example 3.12
https://www.virustotal.com/ru/file/327106e42159b35106ef7b36dfa7ac3fea052d171c24a6ce3a5d15ae35098056/analysis/
Detection ratio:    15 / 50 (trojans and etc)

Original Cgminer Keccak
https://www.virustotal.com/ru/file/fc6005bcd3877884eb853cd22116a63a0f888b0e0298ecee70f1a69d136bb40f/analysis/
Detection ratio:    12 / 50

The same situation with GUIminer/GUIminer scrypt, Reaper and etc.
Most antivirus detect program's for mining as Trojans.
It's your right what miner will you use, i just said that reaper faster and more stable.
I use reaper and have no problem with Trojans and other.