Protégez vous des menaces informatiques présentes partout dans le monde !
Restez à l’écart des sites / programmes malveillantes
Qu’est ce qu’un virus informatique ?
C’est un programme (ou autres) malveillant dont l’objectif principal est de perturber le bon fonctionnement d’un appareil ( souvent un ordinateur) . il se transmet et se propage d’appareil en appareil tel une maladie informatique.
Attention : Dans la mesure où le virus peut accéder à des données personnelles sensible, il peut poser un vrai problème de cybersécurité à prendre au sérieux, dans la sphère privée et professionnelle.
Comment se transmet un virus informatique ?
Pour se répandre, le virus informatique (ou malware) s’immisce au sein de programmes et de logiciels légitimes ou apparemment bénins. Cela lui permet de s’installer à l’insu de l’utilisateur. Il peut aussi se propager suite à : • une pièce jointe dans un e-mail • un téléchargement de logiciels ou de fichiers • depuis un support physique externe (clé usb, disque dur externe,…) • via un site web infecté • grâce à un clique effectué sur un lien malveillant • et bien plus encore … !
Quels sont les différents types de virus ?
• Virus du secteur d’amorçage
Il s’agit d’un virus qui peut prendre le contrôle de votre ordinateur lors de son démarrage, et endommager le système. Heureusement, c’est un virus relativement simple à éviter, puisqu’il se propage la plupart du temps par une clé USB infectée ou par la pièce jointe d’un e-mail.
Virus de script Web
Ce virus utilise le code de certains navigateurs et pages Web. Il peut infecter votre système si vous vous rendez sur la page d’un site Web malveillant, ou suite à l’ouverture de liens, d’images, de vidéos ou de publicités sur votre navigateur.
Browser hijacker
Pouvant être traduit par “pirate de navigateur”, ce virus détourne votre navigation en vous redirigeant vers des sites Web malveillants.
Virus résident
Ce type de virus s’installe dans votre RAM, la mémoire de votre système informatique, et entre en action à tout moment. Particulièrement sournois, il peut se cacher dans de nombreux endroits, et même dans les fichiers d’un antivirus.
Virus à action directe
Ce virus n’entre en action que lors de l’utilisation d’un fichier infecté. Du fait de sa présence ciblée sur un type de fichier, il est facile à éliminer.
Virus polymorphe
Le virus polymorphe est difficile à intercepter, du fait qu’il change de code à chaque exécution du fichier infecté. Il peut donc facilement passer dans les mailles de l’antivirus utilisé.
Virus infectant les fichiers
Ce type de virus infecte certains fichiers exécutables du système. Ils endommagent les fichiers systèmes et ralentissent les programmes.
Virus multipartite
Ce virus peut infecter votre système en différents points, se propageant dans l’intégralité du système suite à l’exécution d’actions non-autorisées sur le système d’exploitation.
Virus de macro
On retrouve principalement ces virus lors de l’ouverture de documents infectés, s’agissant la plupart du temps de pièces jointes d’e-mails malveillants.
Virus de réseaux
Ces virus se déplacent sur les connexions réseau et peuvent se répliquer grâce à des ressources partagées.
• Votre page d’accueil est différente (sans changements de votre part) • Il y’a beaucoup de pop-up (fenêtre contextuelle) qui apparaissent et vous dérangent • Envoie d’e-mail ou de commande non exécutée • Ralentissement conséquent sur la rapidité ou la performance de votre ordinateur • Activités inhabituelles • Présence de programmes inconnus • Et bien d’autres encore …
Quelles sont les manières de se protéger ?
Il est le plus souvent possible de supprimer un virus avant qu’il ne fasse des ravages sur un ordinateur, à condition de rester attentif aux symptômes et de choisir la méthode la plus appropriée :
Si possible, restaurer complètement l’ordinateur en le réinitialisant. (Attention à bien sauvegarder vos données avant)
Un scan de l’ordinateur, si vous avez le moindre doute, un scan fait par un anti-virus permet d’en avoir le cœur net, à condition que l’antivirus soit à jour. Un fois le scan terminé, l’antivirus envoie un rapport sur les menaces détectées. La plupart des antivirus propose dans la foulée de bloquer les éléments les plus problématique. Pour certains, il faut avoir souscrit à la version premium. Le processus s’arrête là dans la plupart des cas.
Utiliser une clé USB ou un disque dur de secours en cas d’infection grave, empêchant l’ordinateur de s’allumer, ou au contraire, pour éviter que le virus ne se déploie complètement dans un ordinateur infecté. Dans ce cas, il faut recourir à ce type de support pour scanner le contenu de l’ordinateur via un autre ordinateur sans avoir besoin d’allumer le premier. Le plus souvent, cette méthode permet de supprimer le virus sans avoir besoin d’allumer l’ordinateur. La clé USB ou le disque dur de secours peut généralement être fourni par les éditeurs d’antivirus.
Méthode manuelle : pour certains virus particulièrement sournois, c’est la seule façon de nettoyer l’ordinateur. Elle est réservée aux utilisateurs ayant de l’expérience et de solides connaissances en informatique.
L’utilisation d’un anti-virus et ou d’un VPN peut-être nécessaire.
N’hésitez pas à lire notre article sur les VPN (Cliquez-ici) ou bien sur l’anti-virus Nod32 dont nous sommes partenaires officiels avec ESET ! (Cliquez-ici)
En cas de virus, n’hésitez pas à nous demander conseils et aides ! Nous pouvons même faire le maximum pour récupérer vos données en cas de perte ! (et non de vol)
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In order to change this unfavorable war situation, the royal family and nobles of the empire also came up with many tactics.They also organized counterattacks to penetrate into the hinterland of the empire and seize the kingdom.
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The underworld fog here is even more severe. The ghost kings have used their own housekeeping methods to resist, and they still feel that their souls are cold.Only those large monsters can pose a threat to Qingyang.
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It s awesome, I can share the worries of the city lord.He was three levels higher than Qingyang in the small level alone.
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Then just introduce it underground. The thunder pool was less than a hundred feet away from Qingyang.You don t take any of the harvest, you can share it all with others.
After becoming the master of the first hall, he has sufficient resources.The two of them Together they are no match. x The golden elixir monk on the left said Brother, what should we do The golden elixir monk on the right said What else can we do Of course, we must go back and report the truth.
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naturally he cannot cover everything. Although the attack on his feet is powerful, the water ghost and kappa are not stupid enough to confront him head on.Tian Dazhuang was also stunned. The second level monster died like this This is equivalent to the middle stage of Qi training.
The golden elixir monk on the Kana 00245 Cbd Reviews A Comprehensive Analysis Of Purekana Cbd Products Hzkqs left was more cautious.It works, it really works, Miaomiao can be saved Qingyang looks calm on the surface, but in his heart he is already extremely excited Thinking that his decades of efforts have finally paid off, thinking that he can be with Miaomiao again in the future.
This yellow mist is formed by Huangquan water. Because there is a lot of Huangquan water in Huangquan Valley, it spreads in the air over time, forming a mist like mist.The bidding is still going on, and the price of the Ten Thousand Years Realgar has quickly reached 200,000 Hades Stones, which is already four times the starting price.
It is considered a relatively standard magic technique.Qingyang has traveled to countless places over the years and has seen countless large scale cities, but there is really no one as big as Fuliu City.
Since her father failed to enter the Eight Realms of Shen Zang, another line of the family, her uncle s line, has been extremely active recently.His eyes were protruding and bloodshot, and there were cracks in his whole head.
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Not far away, the fragile girl in a red dress with two strands of black hair flowing down her flawless face like a bright flame was also Zhao Hao s target.Not to mention the damage, he couldn t even touch the sides.
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The woman was the eldest daughter of Chen Guogong s family, named Chen Ruoli.Skeleton soldiers 142102 units Yes, so many skeleton soldiers were added at once.
The opponent cannot fight well, but it is absolutely invincible to save his life.The risk is too great Zhao Hao gave the answer directly.
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Wow Dozens of carriages carried them towards Heaven Mountain.Three months ago, his father died of illness. Qin Hu ascended the throne and became the new champion prince.
Chariot A mercenary organization from the Bear Country, Take the same route as Demon Court, but all the members are heavy armor professions.Even if a large amount of experience would be swallowed up by these bone dogs, the remaining experience would not be a small amount for him.
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