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Win32.HLLW.Autoruner2.14325
Added to the Dr.Web virus database:
2014-05-12
Virus description added:
2014-05-13
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '87dfa5e096c998a38eb30f99a2815919' = '"%TEMP%\F.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '87dfa5e096c998a38eb30f99a2815919' = '"%TEMP%\F.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\87dfa5e096c998a38eb30f99a2815919.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\F.exe' = '%TEMP%\F.exe:*:Enabled:F.exe'
Creates and executes the following:
'%TEMP%\F.exe'
'<SYSTEM32>\F.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\F.exe" "F.exe" ENABLE
'<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <SYSTEM32>\Cute-Baby-Pictures-53.jpg
Modifies file system :
Creates the following files:
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
%HOMEPATH%\Recent\system32.lnk
%HOMEPATH%\Recent\Cute-Baby-Pictures-53.lnk
<SYSTEM32>\F.exe
<SYSTEM32>\Cute-Baby-Pictures-53.jpg
%TEMP%\F.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:
'lo####ro.no-ip.biz':1177
UDP:
DNS ASK lo####ro.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'EDIT' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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