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{"id":2437320,"date":"2022-02-11T14:41:49","date_gmt":"2022-02-11T13:41:49","guid":{"rendered":"https:\/\/www.phonandroid.com\/?p=2437320"},"modified":"2022-02-11T14:41:49","modified_gmt":"2022-02-11T13:41:49","slug":"windows-10-microsoft-corrige-discretement-une-importante-faille-dans-lantivirus-defender","status":"publish","type":"post","link":"https:\/\/www.phonandroid.com\/windows-10-microsoft-corrige-discretement-une-importante-faille-dans-lantivirus-defender.html","title":{"rendered":"Windows 10 : Microsoft corrige discr\u00e8tement une importante faille dans l’antivirus Defender"},"content":{"rendered":"

Microsoft vient de corriger une importante faille de s\u00e9curit\u00e9 pr\u00e9sente dans son logiciel de s\u00e9curit\u00e9, Microsoft Defender. Le probl\u00e8me, qui remonte \u00e0 2014 et qui touche Windows 10, permettait d'exclure des emplacements de l'analyse antivirale, et d'installer par cons\u00e9quent n'importe quel malware. Windows n'y voyait que du feu.<\/strong><\/p>\n

\"Windows<\/p>\n

Nous l'\u00e9voquions il y a quelques semaines, une faille de s\u00e9curit\u00e9 menace gravement l'antivirus Microsoft Defender<\/a>. Cette faille, pr\u00e9sente depuis 2014, permet de contourner les mesures de s\u00e9curit\u00e9 de l'antivirus \u00e0 cause d'une cl\u00e9 de registre d\u00e9faillante. Ainsi, la cl\u00e9 HKLM\\Software\\Microsoft\\Windows Defender\\Exclusions<\/strong> contient tous les emplacements exclus de l'analyse antivirale. L'ennui, c'est que cette cl\u00e9 est facilement accessible, d\u00e8s lors qu'elle est accessible par le groupe Tout le monde. Une ligne de commande ou un petit tour dans les Param\u00e8tres de Windows de modifier son contenu.<\/p>\n

D\u00e8s lors, un attaquant a la possibilit\u00e9 d'installer tout type de malware sur un PC et de faire en sorte que l'antivirus passe compl\u00e8tement \u00e0 c\u00f4t\u00e9. Bien entendu, il faut avoir un acc\u00e8s \u00e0 la machine en local. Il est n\u00e9cessaire donc d'avoir au pr\u00e9alable la main sur le PC en question, mais dans le cas o\u00f9 que plusieurs comptes ont \u00e9t\u00e9 cr\u00e9\u00e9s (un en tant qu'administrateur et les autres en invit\u00e9 ou avec des privil\u00e8ges restreints), un hacker en mode invit\u00e9 peut ais\u00e9ment enregistrer un logiciel malveillant sur le PC de sa victime. Une fois l'op\u00e9ration effectu\u00e9e, il peut en prendre totalement le contr\u00f4le, voler les informations personnelles des autres comptes, etc.<\/p>\n

A lire aussi – <\/strong>Windows Defender : vous pourrez bient\u00f4t contr\u00f4ler la s\u00e9curit\u00e9 de votre PC sur Android et iOS<\/strong><\/a><\/p>\n