Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '6c739090544d2e93101cc5017f5b0c89' = '"%TEMP%\rundll.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '6c739090544d2e93101cc5017f5b0c89' = '"%TEMP%\rundll.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\6c739090544d2e93101cc5017f5b0c89.exe
Creates the following files on removable media:
- <Drive name for removable media>:\6c739090544d2e93101cc5017f5b0c89.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\rundll.exe' = '%TEMP%\rundll.exe:*:Enabled:rundll.exe'
Creates and executes the following:
- %TEMP%\rundll.exe
Executes the following:
- <SYSTEM32>\netsh.exe firewall add allowedprogram "%TEMP%\rundll.exe" "rundll.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\rundll.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\6c739090544d2e93101cc5017f5b0c89.exe
Network activity:
Connects to:
- 'fa####ok1.zapto.org':60
UDP:
- DNS ASK fa####ok1.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
