Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Update' = '"%HOMEPATH%\explorer.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Update' = '"%HOMEPATH%\explorer.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Update.exe
Creates the following files on removable media:
- <Drive name for removable media>:\Update.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\explorer.exe' = '%HOMEPATH%\explorer.exe:*:Enabled:explorer...
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\explorer.exe" "explorer.exe" ENABLE
Modifies file system:
Creates the following files:
- %HOMEPATH%\explorer.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Update.exe
Network activity:
Connects to:
- 'localhost':666
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\explorer.exe'
