Researchers at Matousec have found malware that could potentially compromise nearly every Windows XP system using current antivirus software. KHOBE (Kernel Hook Bypassing Engine) takes advantage of the vulnerable System Service Descriptor Table to trick Microsoft's OS into accepting rogue code. It allows a safe code thread to be scanned by antivirus apps but immediately swaps in a thread containing a virus or other attack, giving the malware free rein.
