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Win32.HLLW.Autoruner2.5497
Added to the Dr.Web virus database:
2014-02-05
Virus description added:
2014-02-07
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '7338b198ca7e6af6b13b5bb7a8a46c2b' = '"%HOMEPATH%\Google Chrome.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '7338b198ca7e6af6b13b5bb7a8a46c2b' = '"%HOMEPATH%\Google Chrome.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\7338b198ca7e6af6b13b5bb7a8a46c2b.exe
Creates the following files on removable media:
<Drive name for removable media>:\unujy.pif
<Drive name for removable media>:\autorun.inf.lnk
<Drive name for removable media>:\7338b198ca7e6af6b13b5bb7a8a46c2b.exe
<Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\Google Chrome.exe' = '%HOMEPATH%\Google Chrome.exe:*:Enabled:Google Chrome.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\Local Settings\Tempface.exe' = '%HOMEPATH%\Local Settings\Tempface.exe:*:Enabled:ipsec'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks the following features:
User Account Control (UAC)
Windows Security Center
Creates and executes the following:
'%HOMEPATH%\Google Chrome.exe'
'%HOMEPATH%\Local Settings\Tempd.exe'
'%HOMEPATH%\Local Settings\Tempface.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\Google Chrome.exe" "Google Chrome.exe" ENABLE
Injects code into
the following system processes:
<SYSTEM32>\cmd.exe
<SYSTEM32>\cscript.exe
%WINDIR%\Explorer.EXE
<SYSTEM32>\ctfmon.exe
a large number of user processes.
Modifies file system :
Creates the following files:
%APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new
%HOMEPATH%\Google Chrome.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\hbspam.xpg.com[1]
C:\ngpnn.exe
C:\autorun.inf
%TEMP%\winvbdc.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
%HOMEPATH%\Local Settings\Tempd.exe
%HOMEPATH%\Local Settings\Tempface.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
%TEMP%\winjtkhl.exe
%TEMP%\0002DD08_Rar\Tempface.exe
%TEMP%\0002DB14_Rar\Tempface.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\unujy.pif
C:\ngpnn.exe
<Drive name for removable media>:\7338b198ca7e6af6b13b5bb7a8a46c2b.exe
C:\autorun.inf
Deletes the following files:
%TEMP%\winvbdc.exe
%TEMP%\0002DD08_Rar\Tempface.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2880.186234
%TEMP%\winjtkhl.exe
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2880.186203
Moves the following files:
from %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new to %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2880.186234
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2880.186203
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
Network activity:
Connects to:
'go#####chrome.sytes.net':990
'hb####.xpg.com.br':80
'localhost':1037
TCP:
UDP:
DNS ASK go#####chrome.sytes.net
DNS ASK hb####.xpg.com.br
Miscellaneous:
Searches for the following windows:
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
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