Technical Information
To ensure autorun and distribution
Creates the following files on removable media
- <Drive name for removable media>:\umbrella.flv.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%APPDATA%\server.exe" "server.exe" ENABLE
Modifies file system
Creates the following files
- %APPDATA%\app
- %APPDATA%\server.exe
- C:\umbrella.flv.exe
- C:\autorun.inf
- D:\umbrella.flv.exe
- D:\autorun.inf
Sets the 'hidden' attribute to the following files
- C:\autorun.inf
- C:\umbrella.flv.exe
- D:\autorun.inf
- D:\umbrella.flv.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\umbrella.flv.exe
Network activity
Connects to
- '0.###.eu.ngrok.io':10961
TCP
Other
- '0.###.eu.ngrok.io':10961
UDP
- DNS ASK 0.###.eu.ngrok.io
Miscellaneous
Creates and executes the following
- '%APPDATA%\server.exe'
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%APPDATA%\server.exe" "server.exe" ENABLE' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' firewall delete allowedprogram "%APPDATA%\server.exe"' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall delete allowedprogram "%APPDATA%\server.exe"
