Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '0e370aaf59ab24f3b6a1b06b341c9f0e' = '"%WINDIR%\Windows audio device sound microsoft update.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '0e370aaf59ab24f3b6a1b06b341c9f0e' = '"%WINDIR%\Windows audio device sound microsoft update.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\0e370aaf59ab24f3b6a1b06b341c9f0e.exe
Creates the following files on removable media:
- <Drive name for removable media>:\0e370aaf59ab24f3b6a1b06b341c9f0e.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] '%WINDIR%\Windows audio device sound microsoft update.exe' = '%WINDIR%\...
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 "%WINDIR%\Windows audio device sound microsoft update.exe" "Windows audio device sound microsoft update.exe" ENABLE
Modifies file system:
Creates the following files:
- %WINDIR%\Windows audio device sound microsoft update.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\0e370aaf59ab24f3b6a1b06b341c9f0e.exe
- <Drive name for removable media>:\autorun.inf
- %WINDIR%\Windows audio device sound microsoft update.exe
- %HOMEPATH%\Start Menu\Programs\Startup\0e370aaf59ab24f3b6a1b06b341c9f0e.exe
Network activity:
Connects to:
- 'le#####acks.duckdns.org':5555
UDP:
- DNS ASK le#####acks.duckdns.org
Miscellaneous:
Creates and executes the following:
- '%WINDIR%\Windows audio device sound microsoft update.exe'
