Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'e896799a0a1e789892aa1eb7a09deeee' = '"%TEMP%\Win32.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'e896799a0a1e789892aa1eb7a09deeee' = '"%TEMP%\Win32.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\e896799a0a1e789892aa1eb7a09deeee.exe
Creates the following files on removable media:
- <Drive name for removable media>:\ncacl.pif
- <Drive name for removable media>:\autorun.inf.lnk
- <Drive name for removable media>:\e896799a0a1e789892aa1eb7a09deeee.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] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Win32.exe' = '%TEMP%\Win32.exe:*:Enabled:Win32.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\expressvpn.exe' = '%WINDIR%\expressvpn.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- '%TEMP%\Win32.exe'
- '%WINDIR%\Crypted.exe'
- '%WINDIR%\expressvpn.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Win32.exe" "Win32.exe" ENABLE
Injects code into
the following system processes:
- <SYSTEM32>\netsh.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- %TEMP%\nso4.tmp\modern-header.bmp
- %TEMP%\nso4.tmp\modern-wizard.bmp
- %TEMP%\nso4.tmp\ioSpecial.ini
- %TEMP%\nso4.tmp\InstallOptions.dll
- C:\vnxffr.exe
- C:\autorun.inf
- %TEMP%\winemao.exe
- %TEMP%\nso4.tmp\UserInfo.dll
- %TEMP%\aut2.tmp
- %WINDIR%\expressvpn.exe
- %TEMP%\aut1.tmp
- %WINDIR%\Crypted.exe
- %TEMP%\nso4.tmp\System.dll
- %TEMP%\Win32.exe
- %TEMP%\0002E9E9_Rar\expressvpn.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\ncacl.pif
- C:\vnxffr.exe
- <Drive name for removable media>:\e896799a0a1e789892aa1eb7a09deeee.exe
- C:\autorun.inf
Deletes the following files:
- %TEMP%\winemao.exe
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'es####r94.no-ip.org':1177
UDP:
- DNS ASK es####r94.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
