Covid-19: Tecnologia e crédito nunca foram tão importantes para sua empresa. Veja como podemos ajudar.

Saiba como se proteger de um sequestro digital

25 Jan 2016
Kaspersky sequestro digital

O ransomware vem ganhando notoriedade entre as ciberameaças. Uma vez que um Trojan de ransomware se infiltra em um sistema, criptografa seus arquivos silenciosamente, incluindo seus documentos valiosos, vídeos e fotos. O processo ocorre em segundo plano de modo que a vítima não tem consciência do que está ocorrendo até que seja tarde demais.

Quando o estrago está feito, o Trojan informa ao usuário que seus arquivos foram codificados. Se a vítima quiser reavê-los, terá de pagar o resgate, que tende a ser um valor exorbitante, normalmente em bitcoins. A maioria das vítimas não possui grande conhecimento e experiência em tecnologia -então a inconveniência é maior, pois também têm de descobrir o que são bitcoins e onde obtê-las.

O que torna o ransomware um esquema particularmente problemático é que os arquivos criptografados ainda estão armazenados no computador do usuário.

Aqui vão 10 dicas simples para proteger seus dados.

1) Tenha certeza de fazer backups regulares de seus arquivos importantes. É altamente recomendável criar duas cópias do backup, uma na nuvem (em serviços como Dropbox, Google Drive, etc.) e outra gravada em uma mídia física (HD externo, pendrive, um notebook extra, etc.)

Uma vez que seu backup esteja pronto, tenha certeza de verificar as restrições para os arquivos: seu dispositivo “Plano B” deve possuir apenas permissões de escrita ou leitura, sem a oportunidade de modificar ou apagar arquivos. O seu backup pode salvá-lo em diversas circunstâncias, incluindo a remoção acidental de arquivos críticos ou falhas de drives.

2) Cibercriminosos distribuem e-mails falsos se passando por uma notificação de lojas online ou bancos, atraindo o usuário para clicar em um link malicioso de modo a distribuir malware. Esse método é chamado de phishing. Com isso em mente, melhore suas configurações de spam e nunca abra um anexo enviado por um desconhecido.

3) Não confie em ninguém. Links maliciosos podem ser enviados por seus amigos nas mídias sociais, por colegas ou parceiros de jogos que tenham sido infectados de uma maneira ou de outra.

4) Habilite opções como “Mostrar a extensão de arquivos” nas configurações do Windows. Isso tornará bem mais fácil distinguir arquivos potencialmente maliciosos. Como Trojans são programas, você deve ficar de olho em arquivos com extensões como <<EXE>>, <<vbs>>, e <<SCR>>.

5) Você precisa ficar atento, pois muitos tipos de arquivos familiares podem ser perigosos. Cibercriminosos podem usar diversas extensões para mascarar arquivos como vídeos, fotos, ou um documento (como like hot-chics.avi.exe or report.doc.scr).

6) Atualize regularmente seu sistema operacional, navegador e outros programas. Os criminosos tendem a explorar vulnerabilidades em softwares de modo a comprometer os sistemas.

7) Use um programa de antivírus robusto que consiga proteger seu sistema do ransomware. Recomendamos o Kaspersky Internet Security, que previne vírus de atingirem seu computador, ou caso isso ocorra, proteja arquivos importantes usando suas capacidades especiais.

8) Se você descobrir um processo clandestino ou desconhecido na sua máquina, interrompa a conexão com a internet imediatamente. Se o ransomware não tiver conseguido apagar a chave de criptografia do seu computador, ainda existe uma chance de que você possa restaurar os arquivos. No entanto, as novas versões desse tipo de malware utilizam uma senha predefinida, então essa dica infelizmente não funcionaria nesse caso.

9) Se você der azar de ter seus arquivos encriptados, não pague o resgate, a menos que que o acesso instantâneo de alguns de seus arquivos seja crítico. De fato, cada pagamento abastece esse negócio ilegal que irá prosperar quando mais pessoas forem pegas neste golpe.

10) Caso seus dispositivos sejam infectados por um ransomware, você devia tentar descobrir o nome do malware: talvez seja uma versão antiga e seja relativamente simples restaurar seus arquivos. Os ransomware eram menos avançados no passado.

Além disso, a polícia e especialistas em cibersegurança (incluindo aqueles que trabalham na Kaspersky Lab) colaboram para deter os cibercriminosos e fornecem ferramentas de restauração de arquivos online. Algumas pessoas podem desincriptar seus arquivos sem pagar o resgate.

Blog Kaspersky

5207 comments

Leave a comment
  1. yoyokhan | Jan 24, 2022
    I have read your blog it is very helpful for me. I want to say thanks to you. I have bookmark your site for future updates. slot
  2. Digital_Work | Jan 24, 2022
    It is also important to consider the  qarshi viagra side-effects of Viagra while buying.
  3. Digital_Work | Jan 24, 2022
    Generic Viagra helps men consistently get and  www.viagratablet.pk keep an erection when they become sexually stimulated.
  4. Bushra | Jan 24, 2022
    The information you have posted is very useful. The sites you have referred was good. Thanks for sharing..รีวิวยูฟ่าเบท
  5. John | Jan 24, 2022
    I respect this article for the very much investigated substance and magnificent wording. I got so included in this material that I couldn't quit perusing. I am awed with your work and aptitude. Much obliged to you to such an extent. ReviewsByTina.com
  6. Hibbah | Jan 24, 2022
    Positive site, where did u come up with the information on this posting?I have read a few of the articles on your website now, and I really like your style. Thanks a million and please keep up the effective work. https://m.youtube.com/watch?v=7yOofsAWZRg
  7. anus | Jan 24, 2022
    We absolutely love your blog and find many of your post’s to be what precisely I’m looking for. can you offer guest writers to write content for yourself? I wouldn’t mind producing a post or elaborating on many of the subjects you write regarding here. Again, awesome website! https://downloadlagu321.live
  8. Noor | Jan 24, 2022
    I would like to thank you for the efforts you have made in writing this article. I am hoping the same best work from you in the future as well. Thanks...รีวิวยูฟ่าเบท
  9. Seo | Jan 24, 2022
    Nice blog and absolutely outstanding. You can do something much better but i still say this perfect.Keep trying for the best. 안전 토토사이트
  10. asas | Jan 24, 2022
    Pretty good post. I just stumbled upon your blog and wanted to say that I have really enjoyed reading your blog posts. Any way I'll be subscribing to your feed and I hope you post again soon. Big thanks for the useful info. https://oaiwehfj.com
  11. adad | Jan 23, 2022
    This is my first time i visit here and I found so many interesting stuff in your blog especially it's discussion. thank you. Rapid Test Houston.
  12. Noor | Jan 23, 2022
    This article gives the light in which we can observe the reality. This is very nice one and gives indepth information. Thanks for this nice article.รีวิวยูฟ่าเบท
  13. chaouch monaim | Jan 23, 2022
    look for more postings from you. I like play game <a href="https://figurinedragonball.shop">https://figurinedragonball.shop</a> <a href="https://figurinenaruto.com">figurine naruto</a> <a href="https://figurineonepiece.shop">figurine one piece</a> <a href="https://jeux2fille.cc">https://jeux2fille.cc</a> <a href="https://gagnerconcours.fr">jeu concours</a> <a href="https://narutoshop.fr">naruto shop</a> <a href="https://thisis.ma">digital marketing oujda</a>
  14. ali | Jan 23, 2022
    It is perfect time to make some plans for the future and it is time to be happy. I've read this post and if I could I desire to suggest you some interesting things or suggestions. Perhaps you could write next articles referring to this article. I want to read more things about it! 소액결제 현금화 루트
  15. charles hensen hensen | Jan 23, 2022
    Great work done. Nice website. Love it. This is really nice.Nice blogging <a href="https://plex-comlink.com/">plex.tv/link</a> <a href="http://onclicksactivation.com/">plex.tv/link</a> <a href="http://hbomaxcomtv-signin.com/">hbomax.com/tvsignin</a> <a href="https://plex-comlink.com/">plex.tv/link code</a> <a href="http://hbomaxcomtv-signin.com/tvsignin/">hbomax.com/tvsignin code</a> <a href="https://www.ijstarrtcanon.com/">ij.start.canon setup</a>
  16. charles hensen hensen | Jan 23, 2022
    Great work done. Nice website. Love it. This is really nice.Nice blogging <a href="https://plex-comlink.com/">plex.tv/link</a> <a href="http://onclicksactivation.com/">plex.tv/link</a> <a href="http://hbomaxcomtv-signin.com/">hbomax.com/tvsignin</a> <a href="https://plex-comlink.com/">plex.tv/link code</a> <a href="http://hbomaxcomtv-signin.com/tvsignin/">hbomax.com/tvsignin code</a> <a href="https://www.ijstarrtcanon.com/">ij.start.canon setup</a>
  17. Marketing Expert | Jan 23, 2022
    Thanks for sharing us yours precious time to create this post, north american bancard agent login
  18. jacks23 | Jan 23, 2022
    i am for the first time here. I found this board and I in finding It truly helpful & it helped me out a lot. I hope to present something back and help others such as you helped me. gdpr compliance grc software
  19. mellesa | Jan 23, 2022
  20. mom | Jan 23, 2022

    The next time I read a blog, I hope which it doesnt disappoint me up to this blog. I mean, I know it was my option to read, but I personally thought youd have something fascinating to state. All I hear is often a handful of whining about something that you could fix if you werent too busy interested in attention. 토토사이트

    =-=-

    Impressive content! I actually taken pleasure in all the analyzing. I’m hoping to share a good deal more from your website. You will find you got impressive look and additionally ideas. I’m now very shocked in this particular information and facts. แบรนด์เนมผู้ชาย

  21. mtom | Jan 23, 2022

    When I originally commented I clicked the -Notify me when new surveys are added- checkbox and today every time a comment is added I purchase four emails with the same comment. Is there in whatever way you can eliminate me from that service? Thanks! Business opportunities

     

    --------------

    hi!,I love your writing very much! proportion we be in contact more about your post on AOL? I require a specialist on this area to resolve my problem. May be that’s you! Taking a look forward to look you. 김제출장안마

  22. royal | Jan 23, 2022
    Awesome article!  I want people to know just how good this information is in your article.  It’s interesting, compelling content.  Your views are much like my own concerning this subject. 토토커뮤니티
  23. seo | Jan 23, 2022
    You should mainly superior together with well-performing material, which means that see it: نیوزیلند ETA
  24. seo | Jan 23, 2022
    Very good topic, similar texts are       I do not know if they are as good as your work out. Шинэ Зеландын ETA
  25. Bushra | Jan 23, 2022
    I just couldn't leave your website before telling you that I truly enjoyed the top quality info you present to your visitors? Will be back again frequently to check up on new posts.sildenafil citrate
  26. ayan | Jan 22, 2022
    Thank you for some other informative blog. Where else could I get that type of information written in such an ideal means? I have a mission that I’m just now working on, and I have been at the look out for such information. 핸드폰 소액결제 현금화
  27. Rafay | Jan 22, 2022
    Love what you're doing here guys, keep it up!..เว็บพนันบอลดีที่สุด2022
  28. aaa | Jan 22, 2022
    This is really a nice and informative, containing all information and also has a great impact on the new technology. Thanks for sharing it. open plan office furniture
  29. Bushra | Jan 22, 2022
  30. ss | Jan 22, 2022
    I appreciate everything you have added to my knowledge base.Admiring the time and effort you put into your blog and detailed information you offer.Thanks. judi bola
  31. adada | Jan 22, 2022
    It is imperative that we read blog post very carefully. I am already done it and find that this post is really amazing. vidalista 80
  32. Harry | Jan 22, 2022
    Great content material and great layout. Your website deserves all of the positive feedback it’s been getting.    spbo live score indonesia
  33. Digital_Work | Jan 22, 2022
    The Test Bank for Essentials of Pharmacology for Health Professions 8th Edition by Colbert is a study guide that will thoroughly prepare you for your  nclex prep
  34. SEO | Jan 22, 2022
    The post is written in very a good manner and it contains many useful information for me. 메이저놀이터
  35. Seoprovider | Jan 21, 2022
    เว็บพนันufabet It is actually in a similar fashion an awesome write-up i always most certainly savored investigating. It's not at all really day-to-day i always cultivate the method to seek out a single thing 
  36. Rafay | Jan 21, 2022
    I am very happy to discover your post as it will become on top in my collection of favorite blogs to visit.รีวิวเว็บแทงบอล
  37. Marketing Expert | Jan 21, 2022
    Very useful post. This is my first time i visit here. I found so many interesting stuff in your blog especially its discussion. Really its great article. Keep it up. https://premier-parfum-pp.ua/
  38. merckseo | Jan 21, 2022
    A debt of gratitude is in order for composing such a decent article, I bumbled onto your blog and read a couple of post. I like your style of composing...  เว็บพนันออนไลน์เว็บตรง
  39. merckseo | Jan 21, 2022
    A debt of gratitude is in order for composing such a decent article, I staggered onto your blog and read a couple of post. I like your style of composing...  เว็บสล็อตแตกง่าย
  40. Bushra | Jan 21, 2022
    I read that Post and got it fine and informative.เว็บพนันufabet
  41. mellesa | Jan 21, 2022
    Wonderful article. Fascinating to read. I love to read such an excellent article. Thanks! It has made my task more and extra easy. Keep rocking. your-vehicle/
  42. Hibbah | Jan 21, 2022
    This is such a great resource that you are providing and you give it away for free. I love seeing blog that understand the value of providing a quality resource for free. https://roarkesoftware.com/whataburger-survey/
  43. ss | Jan 21, 2022
    Very good points you wrote here..Great stuff...I think you've made some truly interesting points.Keep up the good work.  judi slot online
  44. cisco | Jan 20, 2022
    howdy, your websites are really good. I appreciate your work. 안전놀이터
  45. cisco | Jan 20, 2022
    Cool stuff you have got and you keep update all of us. 토토사이트
  46. Minha | Jan 20, 2022
    This article gives the light in which we can observe the reality. This is very nice one and gives indepth information. Thanks for this nice article.รีวิวเว็บufabet
  47. Minha | Jan 20, 2022
    Great Information sharing .. I am very happy to read this article .. thanks for giving us go through info.Fantastic nice. I appreciate this post.รีวิวเว็บufabet
  48. oliviamaria | Jan 20, 2022
    There could be a number of causes for <a href="https://www.emailhelpus.com/blog/roadrunner-email-problems/"rel="dofollow">roadrunner email problems</a>, and if you know what they are, fixing the problem is pretty simple. Here are a few of the primary factors that could have caused the issue: The problem can also be caused by an unstable internet connection, the buildup of cache files and browser history, misconfigured IMAP or SMTP settings, a non-supportive browser, or a forgotten email credential. To fix the problem, make sure you have a high-speed internet connection and that your router has enough capacity to handle many devices. To fix the browser issues, you'll need to delete the cache files and cookies. You might also try switching to a different browser.Check that your incoming and outgoing server settings are correct. Even if the problem persists, you should contact the Roadrunner email support team to have it resolved.
  49. Rhea | Jan 20, 2022
    reputable installment loans see installment payday loans direct lender anchor direct cash advance lender look these up loans up to 2500 browse around this site short term loan direct lenders discover more loan no credit check direct lender home payday loans direct lender only read full story payday loan no lenders my blog guaranteed payday loan lenders not brokers discover more here payday direct loans no credit check find this
  50. Gwen | Jan 20, 2022
    reputable installment loans see installment payday loans direct lender anchor direct cash advance lender look these up loans up to 2500 browse around this site short term loan direct lenders discover more loan no credit check direct lender home payday loans direct lender only read full story payday loan no lenders my blog guaranteed payday loan lenders not brokers discover more here payday direct loans no credit check find this

    Leave a comment

    São Paulo - SP
    (11) 4062-6971
    Rio de Janeiro - RJ
    (21) 4062-6971
    Belo Horizonte - BH
    (31) 4062-6971
    Curitiba - PR
    (41) 4062-6971
    Londrina - PR
    (43) 4062-6971
    Maringá - PR
    (44) 4062-6971
    Florianópolis - SC
    (48) 4062-6971
    Porto Alegre - RS
    (51) 4062-6971
    Brasília - DF
    (61) 4062-6971
    Salvador - BA
    (71) 4062-7479
    São Paulo - SP
    (11) 4062-6971
    Rio de Janeiro - RJ
    (21) 4062-6971
    Belo Horizonte - BH
    (31) 4062-6971
    Curitiba - PR
    (41) 4062-6971
    Londrina - PR
    (43) 4062-6971
             
    Maringá - PR
    (44) 4062-6971
    Florianópolis - SC
    (48) 4062-6971
    Porto Alegre - RS
    (51) 4062-6971
    Brasília - DF
    (61) 4062-6971
    Salvador - BA
    (71) 4062-7479
    São Paulo - SP
    (11) 4062-6971
    Rio de Janeiro - RJ
    (21) 4062-6971
    Belo Horizonte - BH
    (31) 4062-6971
    Curitiba - PR
    (41) 4062-6971
    Londrina - PR
    (43) 4062-6971
    Maringá - PR
    (44) 4062-6971
    Florianópolis - SC
    (48) 4062-6971
    Porto Alegre - RS
    (51) 4062-6971
    Brasília - DF
    (61) 4062-6971
    Salvador - BA
    (71) 4062-7479