VirTool:Win32/Obfuscator.HG

VirTool:Win32/Obfuscator are detections for programs that have had their purpose obfuscated to hinder analysis or  detection by anti-virus scanners. They commonly employ a combination of methods including encryption, compression, anti-debugging and anti-emulation techniques.

 

These obfuscation techniques are used on various kinds of malware. The malware that lies "underneath" may have virtually any purpose. Hence, there are no obvious symptoms that indicate the presence of this malware on an affected machine.