TrojanDownloader:Win32/Dofoil.O virus found, cleaned, deleted, still have issue's HELP

  • Thread starter Thread starter seanmichael60
  • Start date Start date
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seanmichael60

Recently I was hit with 3 viruses. MSE caught them but one kept coming back. I let Microsoft support take over my computer and after they finished they assured me it was clean. I later found a file on my desktop and I didn't put it there. I deleted it, the short cut and the location it pointed to. I checked my event logs and founf the following entry

Microsoft Antimalware has detected malware or other potentially unwanted software.
For more information please see the following:
http://go.microsoft.com/fwlink/?linkid=37020&name=TrojanDownloader:Win32/Dofoil.O&threatid=2147653354
Name: TrojanDownloader:Win32/Dofoil.O
ID: 2147653354
Severity: Severe
Category: Trojan Downloader
Path: containerfile:_C:\Documents and Settings\Dell\Application Data\A6AF17.exefile:_C:\Documents and Settings\Dell\Application Data\A6AF17.exe->(UPX)regkey:_HKCU@S-1-5-21-1390067357-1767777339-1801674531-1003\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\\Pure Networksrunkey:_HKCU@S-1-5-21-1390067357-1767777339-1801674531-1003\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN\\Pure Networks
Detection Origin: Local machine
Detection Type: Concrete
Detection Source: System
User: NT AUTHORITY\NETWORK SERVICE
Process Name: Unknown
Signature Version: AV: 1.121.908.0, AS: 1.121.908.0, NIS: 0.0.0.0
Engine Version: AM: 1.1.8101.0, NIS: 0.0.0.0

After seeing this I went into the registry and did a search for S-1-5-21-1390067357-1767777339-1801674531-1003 which is part of the above path. There are many entries in the registry. I'm familiar with the registry and editing it. However, I do not make modifications to it unless I know for a fact what I'm doing. Do I need to remove these entries from the registry? In my research I also found in Local Security Settings > Local Policies > User Rights Assignments several entries of the same string under the Security Setting column. Do I need to do any thing with these entries?

Any help will be greatly appreciated.

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