Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe] 'Debugger' = '<SYSTEM32>\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'dlnbjjbdfb' = '%WINDIR%\system\llwzjy081202.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDoctor.exe] 'Debugger' = '<SYSTEM32>\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DrRtp.exe] 'Debugger' = '<SYSTEM32>\svchost.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 1524
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\llwzjy081202.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.cj##ht.cn':80
- 'localhost':1036
TCP:
HTTP GET requests:
- www.cj##ht.cn/mydown.asp?ve############################################
UDP:
- DNS ASK www.cj##ht.cn
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '#32770' WindowName: 'Windows ??????????'
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'CabinetWClass' WindowName: ''
- ClassName: 'IEFrame' WindowName: ''
- ClassName: '' WindowName: ''
