The following instructions have been created to help you to get rid of "Smitfraud-C.SpamThru" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

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Threat Details:

Categories:
  • trojan

Description:
This trojan horse runs in background and connects to a remote server, bypassing the Windows firewall. It can take orders from the remote server to download a pirate copy of Kaspersky Antivirus to uninstall other malware than itself, it will also hijack the hosts file to block the servers from antivirus vendors.
Supposed Functionality:
This Trojan enters itself as Explorer with a four digit number in system start, thus posing as some part of the Explorer
Removal Instructions:

Autorun:

Please use Spybot-S&D, RunAlyzer or msconfig.exe to remove the following autorun entries.
  • Entries named "Explorer 2238" and pointing to "*\dxvw*.exe".

Important: There are more autorun entries that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Files:

Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Registry:

You can use regedit.exe (included in Windows) to locate and delete these registry entries.
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2222}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2222" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2225}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2225" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2234}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2234" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2235}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2235" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2237}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2237" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2239}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2239" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2240}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2240" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2241}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2241" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2242}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2242" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
  • Delete the registry value "{2C1CD3D7-86AC-4068-93BC-A02304BB2243}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\".
  • Delete the registry value "DCOM Server 2243" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\".
If Smitfraud-C.SpamThru uses rootkit technologies, use our RegAlyzer, RootAlyzer or our Total Commander anti-rootkit plugins.

There are more registry entries that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
  1. Please read these instructions before requesting assistance,
  2. Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.