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Win32.HLLW.Autoruner2.15244
Added to the Dr.Web virus database:
2014-06-04
Virus description added:
2014-06-05
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '3b4bd104ccc3a9dd4fe9f09a22897e68' = '"%TEMP%\dllhost.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '3b4bd104ccc3a9dd4fe9f09a22897e68' = '"%TEMP%\dllhost.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\3b4bd104ccc3a9dd4fe9f09a22897e68.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\dllhost.exe' = '%TEMP%\dllhost.exe:*:Enabled:dllhost.exe'
Creates and executes the following:
'C:\Extracted\setup.exe'
'%TEMP%\dllhost.exe'
'C:\Extracted\Server.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\dllhost.exe" "dllhost.exe" ENABLE
Modifies file system :
Creates the following files:
%TEMP%\dllhost.exe
%TEMP%\VSD1.tmp\install.log
C:\Extracted\setup.exe
%TEMP%\sfx.ini
C:\Extracted\Server.exe
Deletes the following files:
Network activity:
Connects to:
'je#####3000.no-ip.biz':16503
UDP:
DNS ASK je#####3000.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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