Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '736dd2ce1d7328b91c5a022d6a05c3fa' = '"%APPDATA%\Upgrade.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '736dd2ce1d7328b91c5a022d6a05c3fa' = '"%APPDATA%\Upgrade.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\736dd2ce1d7328b91c5a022d6a05c3fa.exe
- %HOMEPATH%\Start Menu\Programs\Startup\! My Image.scr
Creates the following files on removable media:
- <Drive name for removable media>:\! My Image.scr
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Upgrade.exe' = '%APPDATA%\Upgrade.exe:*:Enabled:Upgrade.exe'
Creates and executes the following:
- '%APPDATA%\Upgrade.exe'
- '%TEMP%\boube.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\Upgrade.exe" "Upgrade.exe" ENABLE
Modifies file system :
Creates the following files:
- C:\! My Image.scr
- %APPDATA%\Upgrade.exe
- %TEMP%\aut1.tmp
- %TEMP%\boube.exe
Deletes the following files:
- <Drive name for removable media>:\! My Image.scr
- C:\! My Image.scr
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'nj####012.no-ip.biz':2020
UDP:
- DNS ASK nj####012.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
