Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '4d61f7181ea8b2303dece013dc7da118' = '"%APPDATA%\systemi32.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '4d61f7181ea8b2303dece013dc7da118' = '"%APPDATA%\systemi32.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\4d61f7181ea8b2303dece013dc7da118.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\systemi32.exe' = '%APPDATA%\systemi32.exe:*:Enabled:systemi32.exe'
Creates and executes the following:
- '%APPDATA%\systemi32.exe'
- '%TEMP%\ChangeSN.exe'
- '%TEMP%\5.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\systemi32.exe" "systemi32.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\ChangeSN.exe
- %APPDATA%\systemi32.exe
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %TEMP%\5.exe
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'fu####.zapto.org':1177
UDP:
- DNS ASK fu####.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
