Complete scanning result of "e2140update2.exe", received in VirusTotal at 05.10.2007, 12:57:52 (CET).
Antivirus Version Update Result
AhnLab-V3 2007.5.10.0 05.10.2007 no virus found
AntiVir 7.4.0.15 05.10.2007 no virus found
Authentium 4.93.8 05.10.2007 no virus found
Avast 4.7.997.0 05.10.2007 Win32:Trojan-gen. {Other}
AVG 7.5.0.467 05.09.2007 no virus found
BitDefender 7.2 05.10.2007 no virus found
CAT-QuickHeal 9.00 05.09.2007 no virus found
ClamAV devel-20070416 05.10.2007 no virus found
DrWeb 4.33 05.10.2007 no virus found
eSafe 7.0.15.0 05.08.2007 no virus found
eTrust-Vet 30.7.3624 05.10.2007 Win32/SillyDl.LC
Ewido 4.0 05.10.2007 no virus found
FileAdvisor 1 05.10.2007 no virus found
Fortinet 2.85.0.0 05.10.2007 no virus found
F-Prot 4.3.2.48 05.10.2007 no virus found
F-Secure 6.70.13030.0 05.10.2007 no virus found
Ikarus T3.1.1.7 05.10.2007 no virus found
Kaspersky 4.0.2.24 05.10.2007 no virus found
McAfee 5027 05.09.2007 no virus found
Microsoft 1.2503 05.10.2007 no virus found
NOD32v2 2255 05.09.2007 no virus found
Norman 5.80.02 05.09.2007 no virus found
Panda 9.0.0.4 05.09.2007 no virus found
Prevx1 V2 05.10.2007 no virus found
Sophos 4.17.0 05.08.2007 no virus found
Sunbelt 2.2.907.0 05.05.2007 no virus found
Symantec 10 05.10.2007 no virus found
TheHacker 6.1.6.112 05.10.2007 no virus found
VBA32 3.12.0 05.09.2007 no virus found
VirusBuster 4.3.7:9 05.09.2007 no virus found
Webwasher-Gateway 6.0.1 05.10.2007 no virus found
Avast! sometimes has a glitch and recognizes "healthy" files as the ones containing this kind of Trojan
This is true of any anti-virus, anti-spyware program.
This file is identified by one other AV program as malware. It may well still be a false positive, but my advice would be to wait for the analysis by the avast! team.