Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '87869891f332eab1de686cbda8db317d' = '"%TEMP%\windowsdefonder.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '87869891f332eab1de686cbda8db317d' = '"%TEMP%\windowsdefonder.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\87869891f332eab1de686cbda8db317d.exe
Creates the following files on removable media:
- <Drive name for removable media>:\87869891f332eab1de686cbda8db317d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\windowsdefonder.exe' = '%TEMP%\windowsdefonder.exe:*:Enabled:wi...
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\windowsdefonder.exe" "windowsdefonder.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\windowsdefonder.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\87869891f332eab1de686cbda8db317d.exe
Network activity:
Connects to:
- 'si#####1889.ddns.net':1177
UDP:
- DNS ASK si#####1889.ddns.net
Miscellaneous:
Creates and executes the following:
- '%TEMP%\windowsdefonder.exe'
