Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '7be342ff36746df3ce4f4a6d2258d02d' = '"%APPDATA%\windowsupdate.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '7be342ff36746df3ce4f4a6d2258d02d' = '"%APPDATA%\windowsupdate.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\7be342ff36746df3ce4f4a6d2258d02d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\windowsupdate.exe' = '%APPDATA%\windowsupdate.exe:*:Enabled:windowsupdate.exe'
Creates and executes the following:
- '%APPDATA%\windowsupdate.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\windowsupdate.exe" "windowsupdate.exe" ENABLE
Modifies file system :
Creates the following files:
- %APPDATA%\windowsupdate.exe
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)'