Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '4b656831646901ede58bf9c0ac7829f7' = '"%HOMEPATH%\Windows Photo Viewer.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '4b656831646901ede58bf9c0ac7829f7' = '"%HOMEPATH%\Windows Photo Viewer.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\4b656831646901ede58bf9c0ac7829f7.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\Windows Photo Viewer.exe' = '%HOMEPATH%\Windows Photo Viewer.exe:*:Enabled:Windows Photo Viewer.exe'
Creates and executes the following:
- '%HOMEPATH%\Windows Photo Viewer.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\Windows Photo Viewer.exe" "Windows Photo Viewer.exe" ENABLE
Modifies file system :
Creates the following files:
- %HOMEPATH%\Windows Photo Viewer.exe
Network activity:
Connects to:
- 'na####ku.no-ip.biz':1177
UDP:
- DNS ASK Na####ku.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'