hi all, i have been having a problem with this as it keeps popping up. symantec claims it has been deleted but it keep coming back. any ideas on what can actually remove this rather than just report its remvoal?

i hate anything symantec and norton, but unfortunately this is what has to be run on this machine. i have tried hijackthis, malwarebytes, spybot search and destroy and even microsoft malicious software removal tool to no avail. i am wondering if symantec is actually deleting the offending trojan and that is why nothing is picking it up but it isn't removing whatever keep re-installing the problem.

any help would be great, thanks.