Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '6fcb2f6507c92f48ff8c0968d494cf36' = '"%TEMP%\windows update.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '6fcb2f6507c92f48ff8c0968d494cf36' = '"%TEMP%\windows update.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\6fcb2f6507c92f48ff8c0968d494cf36.exe
Creates the following files on removable media:
- <Drive name for removable media>:\6fcb2f6507c92f48ff8c0968d494cf36.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 update.exe' = '%TEMP%\windows update.exe:*:Enabled:windows update.exe'
Creates and executes the following:
- '%TEMP%\windows update.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\windows update.exe" "windows update.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\windows update.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\6fcb2f6507c92f48ff8c0968d494cf36.exe
Network activity:
Connects to:
- 'ye##.no-ip.org':2222
UDP:
- DNS ASK ye##.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
