Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'dlnbjjbdfb' = '%WINDIR%\system\llwzjy081216.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\ntsd.exe' -c q -p 940
Injects code into
the following user processes:
- 360tray.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mydown[1].asp
- %WINDIR%\mydown.asp
- %WINDIR%\system\mvjbj32dla.dll
- %WINDIR%\system\llwzjy081216.exe
- %ALLUSERSPROFILE%\jjjydf16.ini
Deletes the following files:
- %WINDIR%\mydown.asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mydown[1].asp
Deletes itself.
Network activity:
Connects to:
- 'www.ty##re.cn':80
- 'localhost':1036
TCP:
HTTP GET requests:
- www.ty##re.cn/cs/518/mydown.asp?ve#########################################
UDP:
- DNS ASK www.ty##re.cn
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: '#32770' WindowName: 'Windows ??????????'
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
- ClassName: 'CabinetWClass' WindowName: '(null)'
- ClassName: 'IEFrame' WindowName: '(null)'
- ClassName: '' WindowName: '(null)'
