"une menace a été détecté" a chaque fois que j'ouvre google

• FRST.txt
• Shortcut.txt
• Additionnal.txt

CreateRestorePoint:
CloseProcesses:
HKU\S-1-5-21-3289105490-828152048-300358419-1000\...\Run: [Chromium] => "c:\users\admin\appdata\local\chromium\application\chrome.exe" --auto-launch-at-startup --profile-directory="Default" --restore-last-session
GroupPolicy: Restriction <==== ATTENTION
c:\users\admin\appdata\local\chromium
2017-05-31 21:02 - 2017-05-31 21:03 - 000000000 _____ () C:\Users\Admin\AppData\Local\{09A89D22-4BD7-42E0-8C76-389F614ABFEB}
Task: {01CA04F8-D942-4076-9F11-EA1C97B95EA9} - System32\Tasks\{61B1B7EB-726C-4C01-8E49-0DF9E5C93222} => C:\users\admin\appdata\roaming\{8B22B~1\sync.exe <==== ATTENTION
Task: {0B727576-272C-4F1F-9A84-D0DB17FE4384} - System32\Tasks\ByteFence => C:\Program Files\ByteFence\ByteFence.exe [2017-07-20] (Byte Technologies LLC) <==== ATTENTION
Task: {FC2199B9-4BDB-4990-B61C-EF76276FB6CA} - System32\Tasks\ByteFence Scan => C:\Program Files\ByteFence\ByteFence.exe [2017-07-20] (Byte Technologies LLC) <==== ATTENTION
C:\Program Files\ByteFence
CHR HKLM\SOFTWARE\Policies\Google: Restriction <==== ATTENTION
cmd: ipconfig /flushdns
ShortcutWithArgument: C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Internet Explorer.lnk -> C:\Program Files\Internet Explorer\iexplore.exe (Microsoft Corporation) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
ShortcutWithArgument: C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Internet Explorer (No Add-ons).lnk -> C:\Program Files\Internet Explorer\iexplore.exe (Microsoft Corporation) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
ShortcutWithArgument: C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnk -> C:\Program Files (x86)\Internet Explorer\iexplore.exe (Microsoft Corporation) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
ShortcutWithArgument: C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Internet Explorer.lnk -> C:\Program Files\Internet Explorer\iexplore.exe (Microsoft Corporation) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
ShortcutWithArgument: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Avast SafeZone Browser.lnk -> C:\Program Files\AVAST Software\SZBrowser\launcher.exe (Avast Software) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
ShortcutWithArgument: C:\Users\Public\Desktop\Avast SafeZone Browser.lnk -> C:\Program Files\AVAST Software\SZBrowser\launcher.exe (Avast Software) -> "hxxp://web-start.org//?ssid=1477299797&a=1003081&src=sh&uuid=793b75ac-f291-43df-a56f-88f1a8a056d6"
EmptyTemp:
RemoveProxy:
Reboot:

Fin de Fixlog 14:45:27