This news article from 2010 discusses how a GPU can be used by a virus to avoid detection by common anti-malware/anti-virus software. The idea is to obfuscate the virus payload and leverage the GPU's computing power to unpack it, thus defeating a signature-based antivirus that is limited by CPU computing power.
Has there been any documented instances of viruses leveraging the GPU occurring in the wild?
How have antivirus and antimalware vendors responded to this threat?
Does this mean WebGL and WebCL is another vector for exploit?