Win32.HLLW.Autoruner1.52755
Added to the Dr.Web virus database:
2013-08-02
Virus description added:
2013-08-03
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'dlnajjbdfa' = '%WINDIR%\system\llwzjy081101.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following:
- '<SYSTEM32>\ping.exe' 127.0.0.1
- '<SYSTEM32>\cmd.exe' /c ""c:\dfDelmlljy.bat" "
- '<SYSTEM32>\ntsd.exe' -c q -p 1616
Injects code into
the following user processes:
Modifies file system :
Creates the following files:
- C:\dfDelmlljy.bat
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mydown[1].asp
- %WINDIR%\mydown.asp
- %WINDIR%\system\llwzjy081101.exe
- %ALLUSERSPROFILE%\jjjydf16.ini
- %WINDIR%\system\mvjaj32dla.dll
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.nm##60.cn':80
- 'localhost':1036
TCP:
HTTP GET requests:
- www.nm##60.cn/cunt/mydown.asp?ve#########################################
UDP:
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)'
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