PLEASE HELP

Viruses and worms
1

Hi there

I have this query… if Avast is unable to scan some files at all, then how can this be a guarantee that these files are not suspicious/infected? I believe infection can be detected by Avast only after scanning. Please clear my doubts about this.

Dev
India

2

Some files are locked or encrypted and cannot be scanned by any anti-virus program.

They are probably safe to ignore, but post the name and location if you want confirmation.

3

Here are the names and locations:

Unable to scan because Installer Archive/GZIP/CAB archive is corrupted

In the file path names, it’s showing that some files are…/Software Distribution/Download…files.
One file is … Program Files/Nero/Nero7/NeroBackItUp_Image Tool…file.
One file is … Local Settings/Temp.Internet Files…file.
One file is …Local Settings/Temp./install_flash_player /Flashutil.exe… file.
One file is …Google/Chrome/User Data/FlashUtil.exe…file.

4

How is this thread/question any different from this one: http://forum.avast.com/index.php?topic=44423.msg372052#msg372052?
If you feel your question hasn’t been satisfactorily answered in the previous thread, it’s probably better to continue to question in that thread.
Did you maximize the scan results window to read the full filenames and paths?

5

Hi Tarq

You’re right… I should’ve continued with the same thread… actually I am new to this forum; so using this forum is a learning process for me.

Anyway, here are the full filenames and paths:

  • avast! Report
  • This file is generated automatically
  • Task ‘Simple user interface’ used
  • Started on Tuesday, April 21, 2009 8:45:52 AM
  • VPS: 090419-0, 04/19/2009

C:\Documents and Settings\Debasish\Local Settings\Application Data\Google\Chrome\User Data\Default\Cache\f_000041$INSTDIR\NPSWF32_FlashUtil.exe [E] Installer archive is corrupted. (42146)
C:\Documents and Settings\Debasish\Local Settings\Temp\install_flash_player.exe$INSTDIR\NPSWF32_FlashUtil.exe [E] Installer archive is corrupted. (42146)
C:\Documents and Settings\Debasish\Local Settings\Temporary Internet Files\Content.IE5\VPGW9VVH\main[1].js\main[1] [E] GZIP archive is corrupted. (42129)
C:\Program Files\Nero\Nero 7\Nero BackItUp\BackItUp_ImageTool\root.img\root.img [E] GZIP archive is corrupted. (42129)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\jscript.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\jsproxy.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\licmgr10.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\msfeeds.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\msfeedsbs.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\mshtml.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\mshtmled.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\mshtmler.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\msls31.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\msrating.dll [E] CAB archive is corrupted. (42127)
C:\WINDOWS\SoftwareDistribution\Download\4f79e01ce8ee10a7556514a051f797f4\BIT7.tmp\mstime.dll [E] CAB archive is corrupted. (42127)
Infected files: 0
Total files: 146213
Total folders: 2555
Total size: 10.6 GB

  • Task stopped: Tuesday, April 21, 2009 9:18:11 AM
  • Run-time was 32 minute(s), 19 second(s)
  • avast! Report
  • This file is generated automatically
  • Task ‘Simple user interface’ used
  • Started on Thursday, April 23, 2009 3:31:13 PM
  • VPS: 090422-0, 04/22/2009

Infected files: 0
Total files: 141851
Total folders: 2819
Total size: 11.2 GB

  • Task stopped: Thursday, April 23, 2009 3:49:50 PM
  • Run-time was 18 minute(s), 37 second(s)

As I can understand from this report, the second scan (Thursday,April 23) didn’t detect any ‘unable to scan’ file (correct me if i am wrong). So does it mean that there are no files in my system now that are unable to be scanned? I’d also like to reiterate my query here, i.e.,if Avast is unable to scan some files at all, then how can this be a guarantee that these files are not suspicious/infected? I believe infection can be detected by Avast only after scanning.

Thanking you in advance