7 Replies Latest reply: Apr 15, 2010 9:52 AM by Kurt Lang
RyanManUtd Level 1 Level 1 (90 points)
Hi there,

As I was surfing the internet, I sudddenly receive the following info ....

http://xxx.xxx.xx.xx

Warning!
Your computer contains various signs ov virus and malware programs presence.

Your system requires intermediate antivirus check !

System Security will perform a quick and free online checking of your PC for viruses and worms.

The funny thing is that after clicking "OK", some bar seems to run & say that a of of trojans & the filesnames are all look like a PC filesnames like Winxx32.Net ... etc .... finally after many clicks of "OK", it says "404-file not found"

How do I scan for virus in Mac ??

Thanks

iMac, Mac OS X (10.5.8), 24 inches, 4GB RAM, 2.8GHz, 320GB HDD, 256MB ATI Radeon HD 2600 Pro
  • Kappy Level 10 Level 10 (250,120 points)
    Please do not click on these scam messages. There's no internet service that can scan a Mac for viruses. Those sites are for Windows users only.

    Presently there are no known viruses affecting OS X. Please see the following:

    Do You Need Anti-Virus Protection for Your Mac?

    According to Rich Mogull's article, Should Mac Users Run Antivirus Software?,

    "The reality is that today the Mac platform is relatively safe. There are hundreds of thousands of viruses and other malicious software programs floating around for Windows, but less than 200 are known to target the Mac, and many of those are aimed at versions of the Mac OS prior to Mac OS X (and thus have no effect on a modern Mac).

    It's not that Mac OS X is inherently more secure against viruses than current versions of Windows (although it was clearly more secure than Windows prior to XP SP2); the numerous vulnerabilities reported and patched in recent years are just as exploitable as their Windows equivalents. But most security experts agree that malicious software these days is driven by financial incentives, and it's far more profitable to target the most dominant platform."


    Mr. Mogull is a computer security expert. I recommend reading the entire article as it is quite informative.

    For additional information on viruses, trojans, and spyware visit The XLab FAQs and read the FAQs on viruses and spyware.

    You can download a free anti-virus program called ClamXAV at VersionTracker or MacUpdate.
  • Templeton Peck Level 9 Level 9 (59,645 points)
    Ummm...it's just a banner ad. you have no virus.
  • j.v. Level 5 Level 5 (4,155 points)
    You could get ClamXav. It's donationware. I have seen it actually find two orphaned and very lonely invisible Windows viruses on one of my kids' Mac's desktop workspace. And it will pick up the EICAR test "virus." I don't think it yet knows how to look inside dmg files though -- you still have to mount them in order to scan scan them.

    According to the clamav database, it will scan for twenty malwares known to affect OS X, and a gazillion Windoze malwares which may be handy if you interact with a lot of Windoze users. I don't know for certain but I'm pretty sure that that short list includes the same things that securemac's DNSChanger and iAntiVirus' (?) product (iTools?) look for.
  • RyanManUtd Level 1 Level 1 (90 points)
    Templeton Peck wrote:
    Ummm...it's just a banner ad. you have no virus.

    I am relieved to hear that.

    Thanks
  • RyanManUtd Level 1 Level 1 (90 points)
    Thanks Kappy & others who posted for the info

    Kappy wrote:
    Please do not click on these scam messages. There's no internet service that can scan a Mac for viruses. Those sites are for Windows users only.

    Presently there are no known viruses affecting OS X. Please see the following:

    Do You Need Anti-Virus Protection for Your Mac?

    According to Rich Mogull's article, Should Mac Users Run Antivirus Software?,

    "The reality is that today the Mac platform is relatively safe. There are hundreds of thousands of viruses and other malicious software programs floating around for Windows, but less than 200 are known to target the Mac, and many of those are aimed at versions of the Mac OS prior to Mac OS X (and thus have no effect on a modern Mac).

    It's not that Mac OS X is inherently more secure against viruses than current versions of Windows (although it was clearly more secure than Windows prior to XP SP2); the numerous vulnerabilities reported and patched in recent years are just as exploitable as their Windows equivalents. But most security experts agree that malicious software these days is driven by financial incentives, and it's far more profitable to target the most dominant platform."


    Mr. Mogull is a computer security expert. I recommend reading the entire article as it is quite informative.

    For additional information on viruses, trojans, and spyware visit The XLab FAQs and read the FAQs on viruses and spyware.

    You can download a free anti-virus program called ClamXAV at VersionTracker or MacUpdate.
  • RyanManUtd Level 1 Level 1 (90 points)
    The link, it says "Consider switching to the Firefox Web browser with the NoScript plug-in."

    So, it is better to use Firefox than Safari ?
  • Kurt Lang Level 7 Level 7 (34,580 points)
    So, it is better to use Firefox than Safari ?


    Sort of. Depends on how much of the web you want to work. By blocking all scripts, you'd never see such banner ads again. Downside is that many web sites use Java scripts to do what you need them to do. Such as rollovers, expanding menus, order forms, etc. There's a lot of Java scripting that makes what web sites do possible.

    What some folks do is use their normal choice of browser for sites they know and trust, and use Firefox with all scripting disabled to visit unknown sites.