EICAR is the antivirus industry standard for verifying that the antivirus scanner is on, it can detect something. Its a harmless line of text.
According to a post on the Full Disclosure mailing list, McAfee is misidentifying EICAR as elspy.worm.
The misdetection was reported when McAfee VirusScan Enterprise 8.0.0 (tested unpatched and with Patch 11)
using the 4781 DAT file was used. I have not verified this report.