For 2 days the Avast has been telling a virus was found,
File name C:\WINDOWS\Microsoft.NET\nietnds.dll
Malaware name, Win 32 Trojan-gen(other)
Malaware type Virus/worm
VPS version 00738_2
Well a google search for that file name returns zero hits, so that in my mind is suspicious, especially if it were a genuine dot net framework file.
I have no files in that folder, but there is a sub folder, Framework, no file of that name. There is a further sub folder, V2.0. this is the version you have and more sub folders. A search of all these folders and sub folders reveals no file of that name.
You could also check the offending/suspect file at: VirusTotal - Multi engine on-line virus scanner I feel virustotal is the better option as it uses the windows version of avast (more packers supported) and there are currently 32 different scanners.
Or Jotti - Multi engine on-line virus scanner if any other scanners here detect them it is less likely to be a false positive. Whichever scanner you use, you can’t do this with the file in the chest, you will need to move it out.
Disable System Restore on Windows ME or Windows XP. System Restore cannot be disabled on Windows 9x and it’s not available in Windows 2k. After boot you can enable System Restore again after step 3).
Schedule a boot time scanning with avast. Start avast! > Right click the skin > Schedule a boot-time scanning. Select for scanning archives. Boot. Other option is scanning in SafeMode (repeatedly press F8 while booting).
Can you schedule a boot-time scanning?
Start avast! > Right click the skin > Schedule a boot-time scanning.
Select for scanning archives.
Boot.
If infected files are found, it’s safer to send them to Chest instead of deleting them.
This way you can further analysis them.
Access denied means, generally, that the file is in use by another process (program) and cannot be repaired/cleaned/moved/handled by avast!
The report file is created automatically in \Data\Report\aswBoot.txt
04/05/2007 14:52:01 SYSTEM 1492 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\MICROSOFT.NET\NIETNDS.DLL” file.
04/05/2007 14:57:54 SYSTEM 1492 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
04/05/2007 19:12:38 SYSTEM 1484 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
05/05/2007 00:41:26 SYSTEM 1484 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
05/05/2007 04:01:20 SYSTEM 1484 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
05/05/2007 23:29:42 SYSTEM 1528 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
06/05/2007 17:13:23 SYSTEM 1468 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
06/05/2007 17:18:32 pc 3296 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
06/05/2007 17:20:24 SYSTEM 1468 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
07/05/2007 19:28:55 SYSTEM 1464 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
07/05/2007 19:32:10 SYSTEM 1464 Sign of “Win32:Trojan-gen. {Other}” has been found in “C:\WINDOWS\Microsoft.NET\nietnds.dll” file.
07/05/2007 22:41:50 pc 1696 Sign of “Win32:Trojan-gen. {Other}” has been found in “c:\windows\microsoft.net\nietnds.dll” file.
Avast said it was a programe ( I think it was XP mechanic) I’d never got round to installing it though. I moved all to the chest, but then this kept coming up. oxoc0000034.
If a virus is replicant (coming and coming again), you should:
Disable System Restore on Windows ME or Windows XP. System Restore cannot be disabled on Windows 9x and it’s not available in Windows 2k. After boot you can enable System Restore again after step 3).
Schedule a boot time scanning with avast. Start avast! > Right click the skin > Schedule a boot-time scanning. Select for scanning archives. Boot. Other option is scanning in SafeMode (repeatedly press F8 while booting).
Logfile of HijackThis v1.99.1
Scan saved at 09:07:00, on 08/05/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)
Double-click VundoFix.exe to run it.
When VundoFix re-opens, click the Scan for Vundo button.
Once it’s done scanning, click the Remove Vundo button.
You will receive a prompt asking if you want to remove the files, click YES
Once you click yes, your desktop will go blank as it starts removing Vundo.
When completed, it will prompt that it will reboot your computer, click OK.
Note: It is possible that VundoFix encountered a file it could not remove.
In this case, VundoFix will run on reboot, simply follow the above instructions starting from “Click the
Scan for Vundo button.” when VundoFix appears at reboot.
A log will be produced which you can post in your next response, followed by a fresh HijackThis log.
I copied the things Vundofix found :
C:\WINDOWS\Microsoft.NET\nietnds.dll
C:\WINDOWS\Microsoft.NET\sdntein.bak1
C:\WINDOWS\Microsoft.NET\sdntein.bak2
C:\WINDOWS\Microsoft.NET\sdntein.ini
Which were deleted at re boot.
Here is the fresh Hijack log.
My computer is running faster now.
Logfile of HijackThis v1.99.1
Scan saved at 14:48:09, on 08/05/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)
I’ll take a look at the HJT log in a little while.
In the mean time open Add/Remove Programs in the Control Panel and, if there are any versions of Java older than Version 6 Update 1 please uninstall them.
I don’t see anything else in your log other than a little clean up.
Open HJT again and click Do a Scan Only. Put a check mark next to this line and click Fix Checked
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
Next let’s create a new, clean system restore point and delete the old ones.
Click Open>All Programs>Accessories>System Restore. Fill the radio button to Create a restore Point and “next” your way through the process, giving the restore point a name you will recognize (like “Clean”) if you ever need it.
Now click Open>All Programs>Accessories>System Tools>Disk Cleanup. On the More Options tab click the Clean Up button under System Restore.
Finally, you should consider installing a third party firewall. There are several good ones - Comodo, Zone Alarm, PC Tools. Here’s a link to Comodo which is the one I use most often
No problem - you can delete everything in the VundoFix backup folder and then empty your recycle bin if you use it. Its just a backup made during the cleaning process.
The Windows Firewall and your router both give good inbound protection but no outbound protection. I think you’ll be happy with Comodo - its one of the best for outbound.
Also switched to COMODO, together with COMODO BOClean two of the best proggies for your comp.
Do not weigh heavily on the cycles. And do the job, firewall and protection program agains trojans etc.
COMODO is good.