Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'f66b0c533e4d82f554de2de33bc3322d' = '"%APPDATA%\Internet_Explorer.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'f66b0c533e4d82f554de2de33bc3322d' = '"%APPDATA%\Internet_Explorer.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\f66b0c533e4d82f554de2de33bc3322d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Internet_Explorer.exe' = '%APPDATA%\Internet_Explorer.exe:*:Enabled:Internet_Explorer.exe'
Creates and executes the following:
- '%APPDATA%\Internet_Explorer.exe'
- '%APPDATA%\DI3KI5DNTTbiYtzWg9lb.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\Internet_Explorer.exe" "Internet_Explorer.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %APPDATA%\Internet_Explorer.exe
- %APPDATA%\DI3KI5DNTTbiYtzWg9lb.exe
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
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:
- 'nj####key.no-ip.org':1122
UDP:
- DNS ASK nj####key.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
