Facebook Dislike button spreads fast, but is a fake - watch out!

Filed Under: Social networks, Spam, Vulnerability

Don't be too quick to click on links claiming to "Enable Dislike Button" on Facebook, as a fast-spreading scam has caused problems for social networking users this weekend.

Messages claiming to offer the opposite to a like button have been appearing on many Facebook users' walls:

Dislike button on Facebook

Facebook now has a dislike button! Click 'Enable Dislike Button' to turn on the new feature!

Like the "Preventing Spam / Verify my account" scam which went before it, the scammers have managed to waltz past Facebook's security to replace the standard "Share" option with a link labelled "Enable Dislike Button".

The fact that the "Enable Dislike Button" link does not appear in the main part of the message, but lower down alongside "Link" and "Comment", is likely to fool some users into believing that it is genuine.

Clicking on the link, however, will not only forward the fake message about the so-called "Fakebook Dislike button" to all of your online friends by posting it to your profile, but also run obfuscated Javascript on your computer.

The potential for malice should be obvious.

As we've explained before, there is no official dislike button provided by Facebook and there isn't ever likely to be. But it remains something that many Facebook users would like, and so scammers have often used the offer of a "Dislike button" as bait for the unwary.

Here's another example that is spreading, attempting to trick you into pasting JavaScript into your browser's address bar, before leading you to a survey scam:

Offer of Dislike button leads you into posting script into your browser's address bar

If you use Facebook and want to learn more about spam, malware, scams and other threats, you should join the Sophos Facebook page where we have a thriving community of over 90,000 people.

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55 Responses to Facebook Dislike button spreads fast, but is a fake - watch out!

  1. @ian_goodall says:

    Given the prevalence of the dislike button scams, do you not think it might be wise for Facebook to actually either a) come out and explicitly state there will never be a dislike button or b) just implement one. It seems like people are so desperate for the down-thumb option to be true that they're putting their online security at risk.

    • Scotty the Menace says:

      It won't happen because Facebook simply doesn't care about it's users since users are not their customers; users are their product, whose personal information they sell to the highest bidder. The only time Facebook makes positive security or privacy changes is when they are publicly shamed into doing so. Maybe that will happen here. I hope so. Someone on another board suggested a splash page warning on login. Something like that would be useful. I won't hold my breath.

    • Marge says:

      According to a NextWeb Oct 10, 2010 article they (facebook) have apparently said that there will never be a 'dislike' button. I have seen that more than once myself. The theory being that people would not use such a button sensibly. Also has to do with ads/sponsors.
      http://thenextweb.com/socialmedia/2010/10/10/face...

    • Josh M. says:

      they wont make the dislike button in theory that its a negative experience for the person who posted the comment/picture. i've seen it somewhere on the facebook administrator pages about they want to keep the side positive for all not want to produce something that could be negative and harmful to anyones emotions and such. i'm not exact on what the site said however it was on those lines of being disrespectful, blah blah.

    • Fit Fox says:

      They already have explicitly stated that there will be no 'dislike' button. The potential to facilitate cyber-bullying, amongst other things, with the addition of this button is too great.

    • chris says:

      the want of a dislike button and the ego it encourages should be the tell tale sign of the scam, a dislike button would give facebook a negative reputation, and negativity on social websites is something that has broken them and given rise to new ones. so a like button encourages a good mood, but many posters are unaware of the disference between feelings and emotions and alot of them bieng twenty soemthings or younger, they need to be edjucated on the lure of scammers and gain wisdom on how to be warey with "promotional techniques" so that they can see that thier own negativity and desires that are unhealthy is what is making them weak to the scams. these scams also can promote virus and spy ware contamination of thier computers and so they should see this as a threat to thier finances and not just a threat to software functionability, and then perhaps they will desire the edjucation that they need to stay away from scams. every scam doesnt have the same purpose, but many of them are trojan horses indeed for more malice than the adverage user is aware of.

  2. @ian_goodall - totally agree with you. I just mentioned this the other day.

  3. GO2JD says:

    I agree with Ian. Too many users are naive/without a clue. Facebook needs to be more proactive in dispelling scams and/or simply adding clarification to its users. I have 2 additional thoughts, as follows: 1) Facebook Security updates should automatically sent to its users via their News Feed. As the service is "currently" free, it is reasonable that Facebook updates can be forced to its users feeds, especially as it relates to "security". Make people understand. Don't give them the option for ignorance. Be socially responsible. Educate. 2) Incorporate a "thumbs up" and "thumbs down" feature, similar to YouTube.

    Be safe, but be smart also.

  4. claire says:

    My 11year old son just did this Is there anyway of getting it off again??

    • Claire. why your 11 year old son has a facebook account anyway?

    • Mark says:

      Your son shouldn't be on Facebook until he is 13. This is just one of the many good reasons.

    • jenna says:

      Yes. Remove the installed app from within facebook and run a scan with your antivirus. Id visit majorgeeks.com and follow their virus removal steps as well.

      • steviet says:

        You clicked it didn't you? Now you're trying to blame it on a 11 year old boy because you feel like a fool for clicking it!

        Hahaha, you were fooled by the tom trickery!

  5. brenny says:

    Anyone who wants a dislike button can get one easily by simply clicking the like button on anything. once it is clicked there will be a dislike button right where the like button used to be. :)

  6. Victoria says:

    I just had about ten people post that message on my wall. Very annoying.

  7. @kat569 says:

    I see a lot of articles warning us about this scam but none that tell us how to fix it if the user accidentally clicks on it. I'm trying to help my friend's daughter, who did just that, but can't figure it out. She has now been told to run either MalwareBytes or Ad-Aware, and to also run a virus scan; but is there something else we should be doing?

  8. Bored websurfer says:

    To @kat569 I suspect it's a form of app, so you should be able to delete it in the security section. My niece claims someone hacked her account doing it to her, but I assume she tried to turn the feature on signing up for the app or granting the app access. I posted the link to this site onto my profile to warn my friends. My niece managed to delete her posts about it and I guess removed the app as I mentioned. I thankfully wasn't naive enough to click on it and did some quick google research resulting in my finding this site. I also hate the facebook stat scams as I'm sure they're scams. You know the ones that claim to show how many people and maybe even which people accessed your facebook page. I just saw what appeared to be a automatic/computerized post via a friends profile promoting one. I hope people stop falling for this stuff.

  9. Suzann says:

    I clicked, I'll admit it. I ran a scan and it did not show up. Am I okay?

    • Throe says:

      If all you did was click the link, and you did not follow through to the last step, you're probably fine. It seems the final pasting and transmission of the javascript into the address bar of a browser was what would have infected your machine.

  10. Jade says:

    Evidently there is something that occurs as the link is loading as well. My anti-virus software picked it up and killed something as the page loaded and I didn't even get to the Javascript part. If there is a way to contact the dev's from Facebook and see about this, please pass along.

  11. Julia says:

    I've seen a post about this scam, saying it contains a virus called Virotex. I couldn't find anything on Google about this virus, but another person commented saying 'Just had it confirmed by a friend that the virus is real, but her antivirus caught and stopped it!'

    Surely if there's a virus with that name, that's known about enough for an anti-virus to pick it up, I should be able to find something on Google...?

    As for Facebook, in the past, they've put announcements at the top of our news feeds about upcoming changes. Why on earth can they not post an announcement about these stupid scams as well?!

    I understand why Facebook don't want to do a 'dislike' button, due to the worries about it being used as a bullying tool, and I tend to agree.

    • MarkJ says:

      Beware of friends and strangers talking about viruses (unless they work for an antivirus company). Many such warnings are scams, hoaxes, chain emails and vectors for virus infections themselves!

      If you have good AV software you can be sure that they will know about most viruses before anyone else starts sending you emails about it. Just make sure your AV software is fully up-to-date.

  12. Mark says:

    This has got even worse, I was just on my main PC and i clicked it not knowing what it was (how retarded of me) and it just brung me back to my desktop and said that i had 25 viruses in my recycle bin.. then i knew it was a rogue virus so i just left it and hoping to get it sorted out soon

  13. Claire says:

    My friend opened it on my account, Using my computer as I left my facebook logged in by accident:/ But before the page could load I caught her and shut down my computer.

    would that still affect my PC even though the pagge was still loading when I caught her?
    Thanks

    • Malware Fighter says:

      I think you're OK. I was going to suggest the same thing to my friend if he ever got the fake antivirus popup in the future. It's too complicated to explain to people who are not good with computers how to use Task Manager (Ctrl+Alt+Del) to kill your browser or not to click any buttons inside the popup or how to escape the annoying tactics (dialog boxes that keep asking you to click OK or Cancel, many popups appearing at the same time) used in a browser to keep the user from shutting down their Firefox or IE.

      So I just say click the Start button > Turn Off Computer > Restart if you can.

      If you can't then hit the power button on the PC. But shutting down the PC without letting the computer log off normally can be bad but usually nothing ever happens except that if you had something open and you didn't save it, it's gone now. Turning off your computer the fast way (without letting it shut down on its own) can cause corrupted files and registry problems. But this usually only happens if you shut down the computer this way a bunch of times or if you have a old computer.

      QUESTION
      And the weird part of these damn Facebook scams is no security blogger ever tells you if a virus/malware was installed or had the potential to be installed. All they ever say is that you are tricked into filling out a survey and that's it! Really? Are you sure about that?

      If there is even one variant of these Facebook scams that CAN install malware I would like to know. Because all this sounds like is a extremely minor (viral) annoyance.

      Julia's & Mark's posts lead me to believe there are cases where this happens. I'd like to focus on those cases rather than these baby "you filled out a survey and were not exploited in any way other than annoyingly spamming all your friends with a message" Facebook scams.

      • Chester Wisniewski says:

        Most often malware is not installed in these attacks. They primarily exist within the Facebook ecosystem. Occasionally we do see things like Koobface and Palevo, if we see evidence of malware we will mention it in our posting.

  14. tpaton says:

    i would like to add here for the record : firefox has a dislike button for facebook, ive been using it about 2 years, it is safe, and useful to me. People occasionally warn me about it and email me concerns for their safety. i just wanted to make clear , that there are such things which are not malware. not really to do with this new issue,just sayin

    • Popefist says:

      That's a blatant lie. Firefox has no way of interacting with facebook that is unique compared to other browsers. If you're under the impression that you can ''dislike'' something, its because you've already liked it and are just unliking it, or because you're an idiot.

      • Manda says:

        I have the same add-on. It states right on the page it is no way affiliated with facebook and only other users who have it will see it. the one that IS malicious is a facebook app. There is a difference, unless of course you are too "stupid" to read the information posted in front of your face

    • Wayne Austin says:

      That ONLY works IF others have THE SAME ADD-ON! If nobody else has the Add-On IT WILL NOT SHOW!!!!!!!!!!!!!!!!!

      • Amber says:

        why is it that when someone makes a comment all of a sudden everyone has to start calling them stupid or an idiot.

  15. HKSaddler says:

    If someone pastes the Java into a PC what is the effect?

  16. Pegs says:

    I was so close to clicking that button just now, but then I searched it to make sure it was safe...

  17. Again? says:

    Facebook clearly doesn't care about peoples security since hacking it seems to be incredibly easy.

    • Hobbit says:

      Its not the job of Facebook to instill common sense. I can understand kids clicking on links but adults? I guess there are more technological ignorant people out there than I'd like to think.

  18. guest says:

    I accidentally clicked on this stupid thing... does anybody know if facebook can/has fixed this security hole? I got redirected to my home page. The spam hasn't shown up on any of my friends' pages, but I did hear the computer that make noises like something was being installed... ugh. Should I reinstall my OS?

    • lillian says:

      are you a mac user? cause the same thing happened to me and i'm trying to find out about it online but nothings really coming up about macs and this "enable dislike button" issue...please shed some light...PLEASE SOMEBODY?

  19. DMMc says:

    There is an add on, thru Firefox, that DOES put the "Dislike" button on for you. I've used it for 6 months+ now and the only issue I have ever had was people blocking me because I used it on their comments.

  20. Guest says:

    I think a dislike button is a stupid idea... Just another way to start arguments/debates amongst users... If you don't like something and feel that strongly you need to tell someone.. use your words!

  21. Guest says:

    Please shed some light on whether it affects macs...there's no info about it anywhere. i hope that's a good sign

  22. Dazina says:

    Honestly? Who would really fall for this?

  23. Kayla says:

    Wow. I totally would have clicked that if i saw it on Facebook. I am going to come to this website every single time I'm about to click on something! Whoever created this website is a genius! I actually was on Google when i saw this website, i was looking up "the Facebook dislike button" and i was about to go do it on Facebook. Wow, Thanks Graham Cluley for all of your articles. (: - Kayla

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About the author

Graham Cluley is senior technology consultant at Sophos. The readers of Computer Weekly voted him security blogger of the year in 2009 and 2010, and he pipped Stephen Fry to the title of "Twitter user of the year" too. Which was nice. He was also named "Best Security Blogger" by the readers of SC Magazine in 2011. You can subscribe to Graham's updates on Facebook, follow him on Twitter and circle him on Google Plus for regular updates.