Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c62bc3c844cf3db4d0157629b7c9424c' = '"%ALLUSERSPROFILE%\WUDFCompanionHost.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c62bc3c844cf3db4d0157629b7c9424c' = '"%ALLUSERSPROFILE%\WUDFCompanionHost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\c62bc3c844cf3db4d0157629b7c9424c.exe
Creates the following files on removable media:
- <Drive name for removable media>:\c62bc3c844cf3db4d0157629b7c9424c.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ALLUSERSPROFILE%\WUDFCompanionHost.exe' = '%ALLUSERSPROFILE%\WUDFComp...
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ALLUSERSPROFILE%\WUDFCompanionHost.exe" "WUDFCompanionHost.exe" ENABLE
Modifies file system:
Creates the following files:
- %ALLUSERSPROFILE%\WUDFCompanionHost.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\c62bc3c844cf3db4d0157629b7c9424c.exe
- <Drive name for removable media>:\autorun.inf
- %ALLUSERSPROFILE%\WUDFCompanionHost.exe
- %HOMEPATH%\Start Menu\Programs\Startup\c62bc3c844cf3db4d0157629b7c9424c.exe
Network activity:
Connects to:
- 'ne###art.ze.am':6974
UDP:
- DNS ASK ne###art.ze.am
Miscellaneous:
Creates and executes the following:
- '%ALLUSERSPROFILE%\WUDFCompanionHost.exe'
