Eric wrote:

> I concur about the commercial virus scanners.

But these are also not perfect. ;-)

Two weeks ago Trend Micro Worry-Free (TMWF) installed to a customer's PC
detected a simple virus (installed as a Windows service to send junk
mails via Russian SMTP servers), but couldn't remove the file, because
it was still in use. I manually removed the virus from the Windows
registry and from the HDD after a reboot.

Two days later TMWF detected another virus on this PC. This time it was
part of a trojan downloader, but I couldn't find the files TWMF was
complaining about. After an hour w/o any progress, I finally remembered
the tools Rootkit Revealer and RootAlyzer. Both found some hidden files
and registry entries. AFAIR RootAlyzer was able to remove the registry
entries, but none of the files. So I also had to use
<http://swandog46.geekstogo.com/avenger2/avenger2.html> to remove those.

It was a nice challenge, but I will always hate malware authors.

TMWF was of no help. Really bad for a commercial software intended for
business use. But I have similar experiences with Sophos Anti-Virus and
Avira's Antivir.

Robert Riebisch
-- 
BTTR Software
http://www.bttr-software.de/

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