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Win32.HLLW.Autoruner1.12107
Added to the Dr.Web virus database:
2012-02-16
Virus description added:
2020-05-27
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{EAB2DD6B-4C1F-EC88-CC27-A7ABA5BEBEB7}] 'StubPath' = '%APPDATA%\local.exe'
[<HKCU>\SOFTWARE\Microsoft\Active Setup\Installed Components\{EAB2DD6B-4C1F-EC88-CC27-A7ABA5BEBEB7}] 'StubPath' = '%APPDATA%\local.exe'
Creates the following files on removable media
<Drive name for removable media>:\cryptedfile.exe
<Drive name for removable media>:\autorun.ini
Malicious functions
To bypass firewall, removes or modifies the following registry keys
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\CryptedFile.exe' = '%TEMP%\CryptedFile.exe:*:Enabled:Window...
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\local.exe' = '%APPDATA%\local.exe:*:Enabled:Windows Mess...
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Modifies file system
Creates the following files
%TEMP%\cryptedfile.exe
%APPDATA%\local.exe
Sets the 'hidden' attribute to the following files
<Drive name for removable media>:\cryptedfile.exe
<Drive name for removable media>:\autorun.ini
Network activity
UDP
DNS ASK si#####elnis1.no-ip.org
Miscellaneous
Creates and executes the following
'%TEMP%\cryptedfile.exe'
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\CryptedFile.exe" /t REG_SZ /d "%TEMP%\CryptedFile...' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\local.exe" /t REG_SZ /d "%APPDATA%\local.exe:*...' (with hidden window)
Executes the following
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\CryptedFile.exe" /t REG_SZ /d "%TEMP%\CryptedFile...
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\local.exe" /t REG_SZ /d "%APPDATA%\local.exe:*...
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\CryptedFile.exe" /t REG_SZ /d "%TEMP%\CryptedFile.exe:*:...
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\local.exe" /t REG_SZ /d "%APPDATA%\local.exe:*:Enable...
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
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