On Internet Magazine (italian version) of this month, I read :" after online scanning, the Panda, Trend-Micro, McAfee, Norton (etcetera) leave some traces on your HD".
So, I ran in search of this hidden traces but I nothing founded about. Can some evangelist say me more?
Thanks.
I don’t know about McAfee and Norton. Trend-Micro is safe and does not left trash behind as far I know.
But, these are false detections due to Panda on-line scan 
http://forum.avast.com/index.php?topic=12432.msg104932#msg104932
IMSCAN.DLL
PAVDLL.DLL
PAV.SIG
APVXD.VX2
APVXD.VXD
Avast detected a virus in Panda Active Scan for me as well. After that I stop using Panda Active Scan and remove the Active X controls for it cause it keeps showing me two Adwares in programs that I never see in my hardrive. Spybot and Ad-aware SE didn’t detect it, I had Microsoft Beta Antispyware for a few weeks before I remove it and that didn’t detect it, not even McAfee detect it before I remove that. Avst! didn’t detect these adwares as well so I just though it was a false alarm.
Thanks for share your experience. Maybe this traces (except activeX, yhat I deleted immediately after the scan) are deleted from automatic cleaning by CCleaner… ???
I doubt that they would be deleted by ccleaner as they are out into folders other than the system temp. Mostly what causes the problems are on-line scans that download their virus pattern signature file and it hasn’t been encrypted so the signatures are detected as a virus.
Panda’s on-line scanner would appear to be the worst for this, leaving unencrypted VPS file left on your HDD after the scan.
Kamulko, listen to David, I agree with him 8)
CCleaner could take other files away (maybe the ActiveX, etc.).
Trust Trend-Micro on-line scanning 
Ok, guys, after your counseiling I’m in peace-of-mind now!!!
Thanks!!! ;D
Kamulko
Trend-Micro does indeed leave remnants of itself on your hard drive after an
on line scan!!
C:\Windows\Downloaded Program Files -: ActiveX (HouseCall Control)
C:\Windows\AU_Backup
C:\Windows\AU_Log
C:\Windows\AU_Temp (Not temp enough)
Take a look for yourself
Thanks for your note… I don’t find nothing. I have checked also in TEMP folder. maybe I have some hidden ghost-cleaners files in my PC: mistery!!! ;D
Thanks for the info, P3t3rb0nn.
But in my system, for any reason, Trend-Micro does not left behind these files ??? :
@ Trend micro:
it’s behaviour might also depend on which browser you use, and whether you use the IE/ActiveX version, or the JAVA-version of Housecall
With IE, it definitely leaves the above entries on a W2k-system
With IE and XP SP2 it could not leave anything behind… Maybe I’m just the lucky guy 8)
Thanks for the heads up call, I found them all and remove it, sheesh one of those files is over 3,000 kb :o
In all honesty I think there my have been a problem with the Trend-Micro on-line scan removal tool.
I am on dial-up and have tried to use Trend-Micro on-line before, being impatient I terminated before
it was correctly downloaded,this may have contributed to the problem. I feel sure that if I had allowed
for the correct installation the first time the removal .exe would have done its job correctly.
Glad I could be of assistance
It may be related to what system you have, but I have stopped doing online scans : Housecall, Panda, etc. because of the junk left behind. I’m running Win98 SE. and on dial up. ??? This was a month or so ago after reading that it was a good idea to use these scanners.
After running jvPowertools & Regcleaner (4.3.0.780) you could see lots of bits and pieces hanging around in the Registry from these scanners.
Maybe, in this off-line computers, the better will have a second (backup, non-resident) scanner. But the user must know what he’s doing to not mess the things. AntiVir and AVG (without the resident) or BitDefender (free) won’t harm the system (again, if the user know what he’s doing…).