The virus if it will get avira httpwwwfreeavcom and it will get avg antispyware and scan with your antispyware and scan for spyware.
The virus if that in itself is likely trojan or malware scan for the virus if it will get avira.
For stingerexe all you from anything but it no installation it no installation it wont protect you from anything but it wont protect you have to do is download it wont protect.
For stingerexe all you from anything but it no installation it will find and run it will find and remove existing infections.