Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'kl' = '%ALLUSERSPROFILE%\menuin~1\programas\inicializar\kl.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'kl' = 'c:\Documents and Settings\\menuin~1\programas\inicializar\kl.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\break] 'Start' = '00000000'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:elmatador'
Executes the following:
- %WINDIR%\regedit.exe /s drivernvdiabrkgrd.reg
Modifies file system :
Creates the following files:
- %WINDIR%\infectou.txt
- <SYSTEM32>\drivernvdiabrkgrd.reg
- <DRIVERS>\elmatador.sys
Network activity:
Connects to:
- 'localhost':1039
- 'www.sa###riends.org':80
TCP:
HTTP POST requests:
- www.sa###riends.org/technote/board/izoa/enviador.php
UDP:
- DNS ASK www.sa###riends.org
- '<Private IP address>':1037
Miscellaneous:
Searches for the following windows:
- ClassName: 'RegEdit_RegEdit' WindowName: ''
- ClassName: '' WindowName: 'sa'
- ClassName: 'Shell_TrayWnd' WindowName: ''
