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Win32.HLLW.Autoruner2.8238
Added to the Dr.Web virus database:
2014-02-21
Virus description added:
2014-02-22
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '7338b198ca7e6af6b13b5bb7a8a46c2b' = '"%HOMEPATH%\Google Chrome.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '7338b198ca7e6af6b13b5bb7a8a46c2b' = '"%HOMEPATH%\Google Chrome.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\7338b198ca7e6af6b13b5bb7a8a46c2b.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\Google Chrome.exe' = '%HOMEPATH%\Google Chrome.exe:*:Enabled:Google Chrome.exe'
Creates and executes the following:
'%HOMEPATH%\Google Chrome.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\Google Chrome.exe" "Google Chrome.exe" ENABLE
Modifies file system :
Creates the following files:
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
%HOMEPATH%\Google Chrome.exe
Moves the following files:
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
Network activity:
Connects to:
'go#####chrome.sytes.net':990
UDP:
DNS ASK go#####chrome.sytes.net
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
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