W32.Beagle.AV@mm, W32.Beagle.AW@mm, W32.Beagle.AU@mm are a mass-mailing worms that also spreads through file-sharing networks. The worm will open a backdoor on TCP port 81. Due to an increased rate of submissions, Symantec Security Response has raised the category rating to level 3 for W32.Beagle.AV@mm
W32.Beagle@mm!cpl is a generic detection for variants of W32.Beagle@mm that use Control Panel applets as droppers. These files contain a copy of the worm and usually arrive as email attachments with .cpl file extensions.
The above W32.Beagle@mm variants are known to contain copies of W32.Beagle@mm!cpl