Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'bb6fc667aa7f540aaa8b88b849d3f128' = '"%TEMP%\Windows.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bb6fc667aa7f540aaa8b88b849d3f128' = '"%TEMP%\Windows.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\bb6fc667aa7f540aaa8b88b849d3f128.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Windows.exe' = '%TEMP%\Windows.exe:*:Enabled:Windows.exe'
Creates and executes the following:
- '%WINDIR%\Extracted\winrar_5-01_fr_9632_32.exe'
- '%TEMP%\Windows.exe'
- '%WINDIR%\Extracted\2.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Windows.exe" "Windows.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\Windows.exe
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %TEMP%\sfx.ini
- %WINDIR%\Extracted\2.exe
- %WINDIR%\Extracted\winrar_5-01_fr_9632_32.exe
Deletes the following files:
- %TEMP%\sfx.ini
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###.no-ip.biz':1177
UDP:
- DNS ASK lo###.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'