Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'a258a170d3a8fb10cff54db3c872860d' = '"%TEMP%\System.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'a258a170d3a8fb10cff54db3c872860d' = '"%TEMP%\System.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\a258a170d3a8fb10cff54db3c872860d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\System.exe' = '%TEMP%\System.exe:*:Enabled:System.exe'
Creates and executes the following:
- 'C:\Extracted\Select.exe'
- '%TEMP%\System.exe'
- 'C:\Extracted\Select 1.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\System.exe" "System.exe" ENABLE
Modifies file system :
Creates the following files:
- C:\Extracted\Select 1.exe
- %TEMP%\System.exe
- %TEMP%\sfx.ini
- C:\Extracted\Select.exe
Deletes the following files:
- %TEMP%\sfx.ini
Network activity:
Connects to:
- 'ka####ove.no-ip.biz':1177
UDP:
- DNS ASK ka####ove.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
