VirTool:Win32/Obfuscator.CA are detections for programs that have the purpose to obfuscate their selves in order to block analysis or detection by anti-virus software. VirTool:Win32/Obfuscator.CA use a combination of techniques that include compression, encryption, anti-emulation and anti-debugging. These obfuscation techniques are implemented in various types of malware threats. The malware infection that exists 'underneath' may have virtually any purpose. Therefore, there are not any visible symptoms that indicate the existence of this malware infection on the compromised PC. Remove VirTool:Win32/Obfuscator.CA immediately after detection.