Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '16fa25556e1a01e8997ec0226d646e91' = '"%ALLUSERSPROFILE%\dllhost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '16fa25556e1a01e8997ec0226d646e91' = '"%ALLUSERSPROFILE%\dllhost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\16fa25556e1a01e8997ec0226d646e91.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ALLUSERSPROFILE%\dllhost.exe' = '%ALLUSERSPROFILE%\dllhost.exe:*:Enabled:dllhost.exe'
Creates and executes the following:
- '%ALLUSERSPROFILE%\dllhost.exe'
- '%HOMEPATH%\Local Settings\Tempserver.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ALLUSERSPROFILE%\dllhost.exe" "dllhost.exe" ENABLE
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\dllhost.exe
- %HOMEPATH%\Local Settings\Tempserver.exe
Network activity:
Connects to:
- 'mo####.myvnc.com':5552
UDP:
- DNS ASK mo####.myvnc.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
