Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla3' = '%TEMP%\nj.exesecurity-hilla3'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla2' = '%TEMP%\nj.exesecurity-hilla2'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla4' = '%TEMP%\nj.exesecurity-hilla4'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '8fbc74fa7f94f2166ccd28951197c115' = '"%TEMP%\nj.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '8fbc74fa7f94f2166ccd28951197c115' = '"%TEMP%\nj.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla2' = '<Full path to virus>security-hilla2'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla1' = '<Full path to virus>security-hilla1'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla3' = '<Full path to virus>security-hilla3'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla1' = '%TEMP%\nj.exesecurity-hilla1'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'security-hilla4' = '<Full path to virus>security-hilla4'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\8fbc74fa7f94f2166ccd28951197c115.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\nj.exe' = '%TEMP%\nj.exe:*:Enabled:nj.exe'
Creates and executes the following:
- '%TEMP%\nj.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\nj.exe" "nj.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
- %TEMP%\nj.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:
- 'nj####j.no-ip.biz':1177
UDP:
- DNS ASK nj####j.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'