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Win32.HLLW.Autoruner2.41779
Added to the Dr.Web virus database:
2018-07-16
Virus description added:
2018-07-16
Technical Information
To ensure autorun and distribution:
Infects the following executable files:
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32...
Injects code into
the following system processes:
<SYSTEM32>\winlogon.exe
<SYSTEM32>\services.exe
<SYSTEM32>\lsass.exe
<SYSTEM32>\svchost.exe
%WINDIR%\Explorer.EXE
<SYSTEM32>\spoolsv.exe
<SYSTEM32>\ctfmon.exe
<SYSTEM32>\alg.exe
<SYSTEM32>\cmd.exe
<SYSTEM32>\cscript.exe
a large number of user processes.
Modifies file system:
Creates the following files:
%TEMP%\<INETFILES>\Content.IE5\index.dat
%TEMP%\<INETFILES>\Content.IE5\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\FX4XOODT\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\CTK1WDC9\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\2JU3J2CF\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\C5QZOHUZ\desktop.ini
%TEMP%\Cookies\index.dat
%TEMP%\History\History.IE5\index.dat
%TEMP%\History\History.IE5\desktop.ini
%TEMP%\control.xml
Sets the 'hidden' attribute to the following files:
%TEMP%\<INETFILES>\Content.IE5\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\FX4XOODT\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\CTK1WDC9\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\2JU3J2CF\desktop.ini
%TEMP%\<INETFILES>\Content.IE5\C5QZOHUZ\desktop.ini
%TEMP%\History\History.IE5\desktop.ini
Modifies the HOSTS file.
Network activity:
Connects to:
'sy#.zief.pl':65520
'au######te.windowsmedia.com':80
TCP:
HTTP GET requests:
http://au######te.windowsmedia.com/update/update.asp?LA##########################
UDP:
DNS ASK sy#.zief.pl
DNS ASK au######te.windowsmedia.com
Miscellaneous:
Searches for the following windows:
ClassName: 'JFWUI2' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''
ClassName: 'MS_WebcheckMonitor' WindowName: ''
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