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Win32.HLLW.Autoruner3.2000
Added to the Dr.Web virus database:
2020-02-11
Virus description added:
2020-02-13
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'b4e5f2eaf641d30d8c9aaad7703133d7' = '"%TEMP%\dll.exe" ..'
[<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'b4e5f2eaf641d30d8c9aaad7703133d7' = '"%TEMP%\dll.exe" ..'
Creates the following files on removable media
<Drive name for removable media>:\svchost.exe
<Drive name for removable media>:\autorun.inf
Malicious functions
Executes the following
'%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\dll.exe" "dll.exe" ENABLE
Modifies file system
Creates the following files
%TEMP%\dll.exe
C:\svchost.exe
C:\autorun.inf
D:\svchost.exe
D:\autorun.inf
Sets the 'hidden' attribute to the following files
%TEMP%\dll.exe
C:\svchost.exe
C:\autorun.inf
D:\svchost.exe
D:\autorun.inf
<Drive name for removable media>:\svchost.exe
<Drive name for removable media>:\autorun.inf
Miscellaneous
Creates and executes the following
'%TEMP%\dll.exe'
'%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\dll.exe" "dll.exe" ENABLE' (with hidden window)
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