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Win32.HLLW.Autoruner2.31013
Added to the Dr.Web virus database:
2017-12-25
Virus description added:
2017-12-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '34d91dfb34a7283483d0aaba9d10147d' = '%TEMP%\Microsoft\svchost.exe'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
<Drive name for removable media>:\System.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<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:
Executes the following:
'<SYSTEM32>\netsh.exe' firewall set opmode disable
Modifies file system:
Creates the following files:
%TEMP%\Microsoft\svchost.exe
Sets the 'hidden' attribute to the following files:
%TEMP%\BlackData.dat
<Drive name for removable media>:\System.exe
%TEMP%\Microsoft\svchost.exe
%HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Network activity:
Connects to:
'ru######racker99.ddns.net':1177
UDP:
DNS ASK ru######racker99.ddns.net
Miscellaneous:
Executes the following:
'%CommonProgramFiles%\Microsoft Shared\DW\DW20.EXE' -x -s 892
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