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Win32.HLLW.Autoruner1.7921
Added to the Dr.Web virus database:
2011-12-18
Virus description added:
2020-02-13
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'Windows Media Service' = '%APPDATA%\pers-server.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Windows Media Service' = '%APPDATA%\pers-server.exe'
[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Media Service' = '%APPDATA%\pers-server.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{BAFBBA1B-AC9B-0BCD-DA82-9DA2D61811DE}] 'StubPath' = '%APPDATA%\pers-server.exe'
[<HKCU>\SOFTWARE\Microsoft\Active Setup\Installed Components\{BAFBBA1B-AC9B-0BCD-DA82-9DA2D61811DE}] 'StubPath' = '%APPDATA%\pers-server.exe'
Creates the following files on removable media
<Drive name for removable media>:\<File name>.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] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to file>' = '<Full path to file>:*:Enabled:Windows Mess...
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\pers-server.exe' = '%APPDATA%\pers-server.exe:*:Enabled:...
Modifies file system
Creates the following files
%APPDATA%\pers-server.exe
%APPDATA%\install
Sets the 'hidden' attribute to the following files
%APPDATA%\pers-server.exe
<Full path to file>
<Drive name for removable media>:\<File name>.exe
<Drive name for removable media>:\autorun.ini
Network activity
UDP
DNS ASK se#####esktop.no-ip.biz
Miscellaneous
Creates and 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' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to file>" /t REG_SZ /d "<Full path to file>:*...' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\pers-server.exe" /t REG_SZ /d "%APPDATA%\pers-...' (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 "<Full path to file>" /t REG_SZ /d "<Full path to file>:*...
'%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\pers-server.exe" /t REG_SZ /d "%APPDATA%\pers-...
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to file>" /t REG_SZ /d "<Full path to file>:*:Enable...
'%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\pers-server.exe" /t REG_SZ /d "%APPDATA%\pers-server....
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