Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{FC5BF692-AF06-DC8B-4CCC-A4DDDB2B6FE6}] 'StubPath' = '%APPDATA%\X28H4XLORC.exe'
- [<HKCU>\Software\Microsoft\Active Setup\Installed Components\{FC5BF692-AF06-DC8B-4CCC-A4DDDB2B6FE6}] 'StubPath' = '%APPDATA%\X28H4XLORC.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'windows' = '%APPDATA%\X28H4XLORC.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'windows' = '%APPDATA%\X28H4XLORC.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\dWJyYE.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\dWJyYE.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\X28H4XLORC.exe' = '%APPDATA%\X28H4XLORC.exe:*:Enabled:Windows Messanger'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\lshss.exe' = '%APPDATA%\lshss.exe:*:Enabled:Windows Messanger'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Creates and executes the following:
- %APPDATA%\lshss.exe
Executes the following:
- <SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\lshss.exe" /t REG_SZ /d "%APPDATA%\lshss.exe:*:Enabled:Windows Messanger" /f
- <SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\X28H4XLORC.exe" /t REG_SZ /d "%APPDATA%\X28H4XLORC.exe:*:Enabled:Windows Messanger" /f
- <SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe /noconfig /fullpaths @"%TEMP%\bxscwt8o.cmdline"
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:"%TEMP%\RES2.tmp"" "%TEMP%\CSC1.tmp"
Modifies file system :
Creates the following files:
- %TEMP%\bxscwt8o.dll
- %TEMP%\RES2.tmp
- %APPDATA%\data.dat
- %APPDATA%\X28H4XLORC.exe
- %TEMP%\CSC1.tmp
- %TEMP%\bxscwt8o.0.cs
- %APPDATA%\lshss.exe
- %TEMP%\bxscwt8o.out
- %TEMP%\bxscwt8o.cmdline
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\dWJyYE.exe
Deletes the following files:
- %TEMP%\bxscwt8o.cmdline
- %TEMP%\bxscwt8o.out
- %TEMP%\bxscwt8o.0.cs
- %TEMP%\RES2.tmp
- %TEMP%\CSC1.tmp
- %TEMP%\bxscwt8o.dll
Network activity:
Connects to:
- 're###.zapto.org':8030
UDP:
- DNS ASK re###.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
