MRT found Rbot!87C7.dam#2

Recent update of MS MRT… found this…
Backdoor:Win32/Rbot!87C7.dam#2 in file “C:\WINDOWS\system32\TFTP3540”
While Avast! was on the same pc… and did not
catch the Bot was on the machine.

Microsoft Windows Malicious Software Removal Tool v1.17, June 2006
Started On Wed Jun 14 14:08:39 2006

Extended Scan Results

Found virus: Backdoor:Win32/Rbot!87C7.dam#2 in file “C:\WINDOWS\system32\TFTP3540”

Extended Scan Removal Results

Deleting file “C:\WINDOWS\system32\TFTP3540”
Operation succeeded !

Results Summary:

Found Backdoor:Win32/Rbot!87C7.dam#2 and Removed!

Return code: 6
Microsoft Windows Malicious Software Removal Tool Finished On Wed Jun 14 14:45:14 2006

??? VKiller

The name - Win32/Rbot!87C7.dam#2, especially the dam part, suggest that the malware sample was damaged. So, it probably wasn’t active at all…
The detection of damaged samples is mostly random - some aren’t detected, some only by some AVs… they are usually useless files.