Further to the above, on logging onto my Admin Account and running a quick scan, the following file was detected, quarantined and deleted following a reboot. Malwarebytes Anti-Malware (PRO) 1.70.0.1100 www.malwarebytes.org Database version: v2013.03.22.08 Windows Vista Service Pack 2 x86 NTFS Internet Explorer 9.0.8112.16421 Admin :: CHILLBLAST [administrator] Protection: Enabled 22/03/2013 16:57:45 mbam-log-2013-03-22 (16-57-45).txt Scan type: Quick scan Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM | P2P Scan options disabled: Objects scanned: 232122 Time elapsed: 1 minute(s), 53 second(s) Memory Processes Detected: 0 (No malicious items detected) Memory Modules Detected: 0 (No malicious items detected) Registry Keys Detected: 0 (No malicious items detected) Registry Values Detected: 0 (No malicious items detected) Registry Data Items Detected: 0 (No malicious items detected) Folders Detected: 0 (No malicious items detected) Files Detected: 1 C:\Users\Hommin\AppData\Local\Temp\Foxit Updater.exe (Trojan.Passwords.LD) -> Quarantined and deleted successfully. (end) I have since run full scans and nothing has been found.