Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\BugReport] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
- %PROGRAM_FILES%\Thunder Network\WebThunder\ThunderLoader\WebThunder.exe
- %PROGRAM_FILES%\Thunder Network\WebThunder\ThunderLoader\BugReport.exe
- %PROGRAM_FILES%\Thunder Network\WebThunder\ThunderLoader\BugReport.exe -i
Executes the following:
- <SYSTEM32>\net1.exe start BugReport
- <SYSTEM32>\regsvr32.exe /s "<SYSTEM32>\xfsvc.ocx"
Modifies file system :
Creates the following files:
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\XGZIJ2L9\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\AZ6H436T\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\M9S7UVWX\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\M9S7UVWX\c[1].asp
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\49QVSXEB\sc[1].asp
- %WINDIR%\Temp\History\History.IE5\desktop.ini
- %PROGRAM_FILES%\Thunder Network\WebThunder\ThunderLoader\BugReport.exe
- %PROGRAM_FILES%\Thunder Network\WebThunder\ThunderLoader\WebThunder.exe
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\49QVSXEB\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\desktop.ini
- <SYSTEM32>\xfsvc.ocx
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\AZ6H436T\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\XGZIJ2L9\desktop.ini
- %WINDIR%\Temp\History\History.IE5\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\49QVSXEB\desktop.ini
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\M9S7UVWX\desktop.ini
Deletes the following files:
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\49QVSXEB\sc[1].asp
- %WINDIR%\Temp\Temporary Internet Files\Content.IE5\M9S7UVWX\c[1].asp
- %WINDIR%\Temp\~DFAECD.tmp
- %TEMP%\~DF6B14.tmp
- %TEMP%\~DF2161.tmp
Network activity:
Connects to:
- 'vo#.#iuza.com':80
- 'localhost':1036
- 'localhost':1035
TCP:
HTTP GET requests:
- vo#.#iuza.com/incs//c.asp?03######
- vo#.#iuza.com/incs//sc.asp
UDP:
- DNS ASK vo#.#iuza.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
