Win32.HLLW.Autoruner1.16430

Added to the Dr.Web virus database: 2012-05-25

Virus description added: 2012-06-14

To ensure autorun and distribution:

Modifies the following registry keys:

Creates the following files on removable media:

Malicious functions:

Creates and executes the following:

Executes the following:

<SYSTEM32>\attrib.exe +r +s +h f:\yihui.exe
<SYSTEM32>\attrib.exe +r +s +h e:\yihui.exe
<SYSTEM32>\attrib.exe +r +s +h <Drive name for removable media>:\yihui.exe
<SYSTEM32>\reg.exe ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v YiHui /t REG_SZ /d c:\YiHui.exe /f
<SYSTEM32>\attrib.exe +r +s +h h:\yihui.exe
<SYSTEM32>\attrib.exe +r +s +h g:\yihui.exe
<SYSTEM32>\attrib.exe +r +s +h c:\yihui.exe
<SYSTEM32>\attrib.exe +r +s +h e:\AUTORUN.INf
<SYSTEM32>\attrib.exe +r +s +h <Drive name for removable media>:\AUTORUN.INf
<SYSTEM32>\cmd.exe /c <Current directory>\YiHui.bat
<SYSTEM32>\attrib.exe +r +s +h h:\AUTORUN.INf
<SYSTEM32>\attrib.exe +r +s +h g:\AUTORUN.INf
<SYSTEM32>\attrib.exe +r +s +h f:\AUTORUN.INf

Modifies file system :

Creates the following files:

C:\667.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\667[1].exe
<Current directory>\YiHui.inf
C:\YiHui.exe
<Current directory>\YiHui.bat
C:\kq.exe
C:\haoie3112.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\haoie3112[1].exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\KINSTALLERS_66_4070[1].exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\kq[1].exe
C:\KINSTALLERS_66_4070.exe

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Deletes itself.

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP: