My computer (win 7, 64) got infected by a malware posing as a fake system utility. The program, named "System Check" start throwing lots of false error messages like: "Hard drive clusters are partly damaged" "Windows OS can't detects a free hard drive space. hard drive error." "Failed to save all the components for the file: //system32" In addition I was unable to start Task Manager and my files started disappear. What I have done so far: Downloaded ProcessExplorer, renamed the executable and killed two suspicious process: "BeMDscAw6xceXe" and "rcIkTucXrvMQpF" Moved the executables and some similar files " ~BeMDscAw6xceXe", "~BeMDscAw6xceXer", "BeMDscAw6xceXe" from ProgramData to another directory. Used Autoruns and removed one "BeMDscAw6xceXe" entry. Nothing else looked suspicious. Search the registry and removed two keys: "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Tracing\BeMDscAw6xceXe_RASAPI32" and "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Tracing\BeMDscAw6xceXe_RASMANCS" Removed a Deny permissions for Everyone added to lots of files using: icacls c:\ /remove:d Everyone /T /C /L Remove the hidden attribute from lots of files, probably most of them. Additionally I run unhide from http://download.bleepingcomputer.com/grinler/unhide.exe What is still happening? Explorer.exe tries to contact various sites like preview.pulpfree.com When I click a link in a Google search results page got redirected to various other pages. Happens in IE and Firefox. If is of any help see also this report: http://www.threatexpert.com/report.aspx?md5=5f0ea0d857e4685826c2adb3b0528f9e I put in following posts the logs. I mention I run Avira Free up to date. Thank you very much for your help!