I have Mcafee Security Center version 9.15, build 9.15.175 with VirusScan version 13.15, build 13.15.116, Dat version 5900.0000 (created 2/22/10), engine version 5301.4018, and McAfee was able to successfully remove the Artemis trojan from my Lenovo laptop running Vista Business during a scan that started last night and ended this morning. I do not know what version of VirusScan you have, but if it is possible to upgrade to the same version I have or to try a later dat version, VirusScan may be able to remove this trojan from your pc. There are many versions of this pesky little monster, so you may have a tougher strain that VirusScan cannot delete.
I assumed that McAfee would not be able to help me rid my machine of this malware, because in the past it could not help with other malware. Instead, I tried Malwarebytes anti-virus, Avira, something from pcDoctor, and several other free virus scan applications, and the only one that was able to remove this pest was McAfee. Finally, I came back to McAfee and was very pleasantly surprised. Great job, McAfee!
Hope this helps.
Jaime, PE to be