The following instructions have been created to help you to get rid of "One-Shot-Antivirus" 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:
  • malware

Description:
One-Shot-Antivirus is not an antivirus program but malware. It starts a batch script which creates 3 new useraccounts, restarts the computer, disables taskmanager, controlpanel, run, firewalls, find, searchbuttons, toolbars in the taskbar, context menu etc. An autorentry is created to be loaded on every system startup. After deletion by Spybot Search & Destroy please remove the new useraccounts.
Removal Instructions:

Desktop:

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

Start Menu:

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

Autorun:

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

Files:

Please use Windows Explorer or another file manager of your choice to locate and delete these files.
  • The file at "<$LOCALSETTINGS>\Temp\winlogon.exe".
  • The file at "<$LOCALSETTINGS>\Temp\tempfile.enc".
  • The file at "<$LOCALSETTINGS>\Temp\LittleRedRidingHood.txt".
  • The file at "<$LOCALSETTINGS>\Temp\iscch.exe".
  • The file at "<$LOCALSETTINGS>\Temp\find.bat".
  • The file at "<$LOCALSETTINGS>\Temp\del.bat".
  • The file at "<$LOCALSETTINGS>\Temp\autorun.inf".
  • The file at "<$LOCALSETTINGS>\Temp\b64defile.dat".
  • The file at "<$LOCALSETTINGS>\Temp\tempfile.bat".
  • The file at "c:\autorun.inf".
  • The file at "c:\TempCache\autorun.inf".
  • The file at "c:\TempCache\LittleRedRidingHood.txt".
  • The file at "c:\TempCache\winlogon.exe".
  • A file with an unknown location named "winlogon.exe".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\autorun.inf".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\av.ico".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\cyclone.exe".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\iscch.exe".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\LittleRedRidingHood.txt".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\mailtmpl.txt".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\msmsgsin.exe".
  • The file at "<$PROGRAMFILES>\One-Shot AntiVirus\winlogon.exe".
  • The file at "<$SYSDIR>\iscch.exe".
Make sure you set your file manager to display hidden and system files. If One-Shot-Antivirus uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!

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

Folders:

Please use Windows Explorer or another file manager of your choice to locate and delete these folders.
  • The directory at "c:\TempCache".
  • The directory at "<$PROGRAMS>\One-Shot AntiVirus 1.3".
  • The directory at "<$PROGRAMFILES>\One-Shot AntiVirus".
Make sure you set your file manager to display hidden and system files. If One-Shot-Antivirus uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify folders!

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.