It is a bit of a strange file type to get a detection on, .old.
What is strange is that having been sent to the chest, unless there were errors (displayed) then it should be in the chest. If it is regenerated, especially as it is now under a different detected malware name, there is something very strange going on.
Do you have any other security software installed, especially something that would manage registry changes, which could possibly be creating/saving configurations/registry settings ?
If it keeps coming back, there is likely to be an undetected or hidden element to the infection that restores or downloads the file again. What is your firewall ?
If you haven't already got this software (freeware), download, install, update and run it and report the findings (it should product a log file).
Don't worry about reported tracking cookies they are a minor issue and not one of security, allow SAS to deal with them though. - See
http://en.wikipedia.org/wiki/HTTP_cookie.
