Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '1faab91d8aff88660cbb010982e52a16' = '"%ALLUSERSPROFILE%\winlog.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '1faab91d8aff88660cbb010982e52a16' = '"%ALLUSERSPROFILE%\winlog.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\1faab91d8aff88660cbb010982e52a16.exe
Creates the following files on removable media:
- <Drive name for removable media>:\1faab91d8aff88660cbb010982e52a16.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%\winlog.exe' = '%ALLUSERSPROFILE%\winlog.exe:*:Enable...
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%\winlog.exe" "winlog.exe" ENABLE
Modifies file system:
Creates the following files:
- %ALLUSERSPROFILE%\winlog.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\1faab91d8aff88660cbb010982e52a16.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- '17#.#50.133.226':70
- '17#.#50.133.226':80
Miscellaneous:
Creates and executes the following:
- '%ALLUSERSPROFILE%\winlog.exe'
