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Win32.HLLW.Autoruner1.27689
Added to the Dr.Web virus database:
2012-10-11
Virus description added:
2012-10-18
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Yahoo Messengger' = '<SYSTEM32>\winfiles.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe winfiles.exe'
Creates or modifies the following files:
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\winfiles.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Registry Editor (RegEdit)
blocks the following features:
Creates and executes the following:
%WINDIR%\winnt.exe
%WINDIR%\winnt.exe (downloaded from the Internet)
Executes the following:
<SYSTEM32>\at.exe 09:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\winfiles.exe
<SYSTEM32>\at.exe /delete /yes
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\blob[1].nql
<SYSTEM32>\autorun.ini
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\setting[1].nql
<SYSTEM32>\setting.ini
%WINDIR%\winfiles.exe
<SYSTEM32>\winfiles.exe
%WINDIR%\winnt.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\blob[1]
Sets the 'hidden' attribute to the following files:
<SYSTEM32>\setting.ini
<Drive name for removable media>:\autorun.inf
<SYSTEM32>\autorun.ini
<SYSTEM32>\winfiles.exe
%WINDIR%\winfiles.exe
Deletes the following files:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\winfiles.exe
Network activity:
Connects to:
'nh#####nglane4.t35.com':80
'ge.tt':80
TCP:
HTTP GET requests:
nh#####nglane4.t35.com/setting.nql
ge.tt/api/1/files/5XWwNBO/0/blob?do##################
ge.tt/api/1/files/5XWwNBO/0/blob?do######
UDP:
DNS ASK nh#####nglane4.t35.com
DNS ASK ge.tt
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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