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Thread: Can someone explain linux viruses to me!

  1. #31

    Default Re: Can someone explain linux viruses to me!

    Linux newbie here...
    The points listed are good ones, and applicable to Linux. If you don't mind me chipping in, my caution are viruses via the web in browser plug-ins.

    With all due respect, the posts are a bit dated. The java platform is common between Windows, Linux... probably Mac... Herein lies the rub?!?!?!?

    For some more recent info, refer to:
    Adobe Flash ads launching clipboard hijack attack article:
    Adobe Flash ads launching clipboard hijack attack | ZDNet

    I got a vicious virus from My Space . com when using XP. It can't be proven positive, but I think it was via Flash in a playlist music song. A note was sent to the My Space admin. They did not deny or confirm. The response was basically: "Thank you for the info. We miss these things sometimes".

    and:
    Beware: Hackers exploit Adobe’s latest Flash Player vunerabilities
    from article:
    "Two months ago, Adobe vowed to beef up the security of its Reader and Acrobat document application by conducting more testing and compatible schedule of patching. Initially it seemed to be heading towards a good start, but, vulnerabilities in the latest exploits show the shortsightedness of not employing a similar build to Flash Player, which runs on most operating systems including Windows, Mac OS X and Linux"
    Is there an AV package for SUSE/Linux that checks Java and web platforms?

  2. #32

    Default Re: Can someone explain linux viruses to me!

    more Linux virus data:

    Report: Malicious PDF files comprised 80 percent of all exploits for 2009 | ZDNet
    ---do a find (in comments) for the word: Linux

    Exploit.PDF-JS is a malicious virus. Remove it in 60 seconds with these simple instructions
    --virus listed in Linux box from infected PDF. No solution listed as of today.

  3. #33
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    Default Re: Can someone explain linux viruses to me!

    Don't confuse Java with Javascript. They are different languages.

  4. #34

    Default Re: Can someone explain linux viruses to me!

    ken_yap,

    I realize that the one site states Exploit_PDF-JS. This is what you must mean by javascript? I don't know that much about javascript, but what caught my eye are the two comments after all the suspected_pdf_file_list on that site. They both have:

    'Exploit.PDF on a Asus Linux KDE' in them....

    Is there an AV package for SUSE/Linux that checks browser-based Java and common web applications/platforms?

  5. #35
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    Default Re: Can someone explain linux viruses to me!

    danperecky wrote:
    >
    > With all due respect, the posts are a bit dated. The java platform is
    > common between Windows, Linux... probably Mac... Herein lies the
    > rub?!?!?!?


    nothing 'dated' about that...there have always been "cross platform"
    stuff...heck, http is so cross platform that everything on the planet
    using the internet uses it....BUT, it is only M$ that picks up malware
    while everyone else is pretty much safe (as long as they understand
    their system and exercise common sense and security practices)


    > For some more recent info, refer to:
    > Adobe Flash ads launching clipboard hijack attack article:
    > 'Adobe Flash ads launching clipboard hijack attack | ZDNet'
    > (http://tinyurl.com/2w2tqyc)


    heh! another how to sell fake anti-virus and collect credit card
    numbers....(this time by hyjacking the klipboard??)

    i know lots of M$ folks fall for that because they are RUNNING SCARED
    all the time and when some unknown site offers a *solution* they run
    and get a credit card and buy it...

    but, tell me: how many Linux clipboards have been hyjacked???



    > I got a vicious virus from My Space . com when using XP.


    so? are you surprised? do you not know that *any time* you connect
    *any* Redmond system to the internet you are likely to be had,
    cracked, hacked and infected?

    where have you been?


    > and:
    > 'Beware: Hackers exploit Adobe’s latest Flash Player
    > vunerabilities' (http://tinyurl.com/2evxpxw)
    > from article:
    >> "Two months ago, Adobe vowed to beef up the security of its Reader and
    >> Acrobat document application


    correct, i avoid using Adobe readers...instead, use kpdf until you
    know that the readers in the openSUSE repos have been fixed.

    simple.


    > Is there an AV package for SUSE/Linux that checks Java and web
    > platforms?


    what do you mean "checks Java and web platforms" ? are you asking if
    there is a program with will automatically check everywhere you go to
    let you know if it is a safe place, or not? Firefox has some built in
    checks if you set it up to do that (i turn it off because it slows
    down browsing, and i am NOT afraid i will accidentally run across the
    only virus in the world which can do damage here)

    in my opinion the 'thing' that is supposed to exercise caution is most
    often found pressing the keys..

    that said, i hear the folks that simply MUST have AV use clamav, i
    think it is in the normal openSUSE repo..

    --
    DenverD (Linux Counter 282315)
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    posted via NNTP w/TBird 2.0.0.23 | KDE 3.5.7 | openSUSE 10.3
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  6. #36

    Default Re: Can someone explain linux viruses to me!

    Puzzled penguin - is about right... That's apt.

    >> I got a vicious virus from My Space . com when using XP.

    > so? are you surprised? do you not know that *any time* you connect
    > *any* Redmond system to the internet you are likely to be had,
    > cracked, hacked and infected?

    > where have you been?


    --Yes... true. That OS can be full of holes. The common element is Adobe flash... Is there a better alternative by chance?

    > correct, i avoid using Adobe readers...instead, use kpdf until
    > you know that the readers in the openSUSE repos have been fixed.
    >
    > simple.


    --beautiful. great tip.

    > what do you mean "checks Java and web platforms" ? are you
    > asking if there is a program with will automatically check
    > everywhere you go to let you know if it is a safe place, or
    > not? Firefox has some built in checks if you set it up to do
    > that


    --another helpful gem. good stuff.

    > that said, i hear the folks that simply MUST have AV use
    > clamav,


    --I heard that clamav was good- but that it was mostly relegated to scanning mail for windows viruses. i.e. - used on linux servers. Maybe I did not read up enough on it yet.

  7. #37
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    Default Re: Can someone explain linux viruses to me!

    Quote Originally Posted by danperecky View Post
    --I heard that clamav was good- but that it was mostly relegated to scanning mail for windows viruses. i.e. - used on linux servers. Maybe I did not read up enough on it yet.
    Frankly speaking, if you are concerned about security, your time is better spent reading up on how bots can penetrate a Linux system thru a password hack on port#22. Learn what defence measures you can put in place there. The odds of one catching something via that route are FAR greater than worrying about Linux virus (and one's time far better spent putting defences there against bot hacks thru open ports).

    Also, pay attention to who you give your password for online banking, email, websites, etc .... EMail scams can trick a Linux user just as much as they can a Windows or Mac OS/X user.

    Learn how your Linux firewall works, and how to selectively open and close ports. Spend your time there.

    I tried to point out where your main threat lies, and where your time is better spent .

    There may come a day, when Linux users need to pay major attention to a Virus threat - BUT it is NOT THIS DAY.

    Just my 2 cents worth, and its your time as to where you spend your effort in making your Linux system more secure.

  8. #38

    Default Re: Can someone explain linux viruses to me!

    CPU,

    Thanks for your patience, consideration and thoroughness'

  9. #39

    Default Re: Can someone explain linux viruses to me!

    oldcpu wrote:

    > Also, pay attention to who you give your password for online banking,
    > email, websites, etc .... EMail scams can trick a Linux user just as
    > much as they can a Windows or Mac OS/X user.


    Very good point. A good practice is to use one exclusively browser (ex,
    Konqueror, Opera, etc.) for online banking, and another (ex. Firefox)
    for general browsing. When you're done banking, close that browser.

    If you do use the same browser for both, don't open multiple sites in
    tabs when the bank site is open, and when you're done banking, close and
    reopen the browser, don't just close the tab.

    ....Kevin
    --
    Kevin Miller
    Juneau, Alaska
    http://www.alaska.net/~atftb
    In a recent poll, seven out of ten hard drives preferred Linux.

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