Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'qq' = '%WINDIR%\DnsIIs.exe'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%WINDIR%\DnsIIs.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\DnsIIs.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- %WINDIR%\ad5588.exe (downloaded from the Internet)
- %WINDIR%\DnsIIs.exe
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %WINDIR%\ad5588.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\np.814e[1]
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\ad5588[1].exe
- %WINDIR%\DnsIIs.exe
- C:\DnsIIs
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- C:\DnsIIs
- %WINDIR%\DnsIIs.exe
- <Drive name for removable media>:\DnsIIs.exe
Network activity:
Connects to:
- 'localhost':1038
- 'np.#14e.com':80
- 'localhost':1035
- 'ad.##aizhe.com':80
TCP:
HTTP GET requests:
- np.#14e.com/?24#
- ad.##aizhe.com/ad5588.exe
UDP:
- DNS ASK np.#14e.com
- DNS ASK ad.##aizhe.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
