Trojan Downloader

Discussion in 'Mac Basics and Help' started by shoe933, Jan 27, 2009.

  1. shoe933 macrumors newbie

    May 25, 2008
    I am running 10.4 software on a PowerBook 4. Lately weird things have been happening...applications keep randomly shutting down, everything running slowly, when I type there is a delay in the letters showing up, etc. I'm not running a virus software so I did a web search and found ClamAV (free). Installed it and scanned my User files.

    This has shown up. Trojan.Downloader.Istbar-176 FOUND

    I'm pretty ignorant on hardware issues. Should I purchase a virus package and run it? How do I get rid of the Trojan?

    Any advice??
    Thanks for all you techies out there!
  2. WildCowboy Administrator/Editor


    Staff Member

    Jan 20, 2005
    It's a Windows Trojan, so it can't hurt your machine. Just delete if you like and move on.
  3. benthewraith macrumors 68040


    May 27, 2006
    Miami, FL
    Pretty sure thats a Windows trojan you probably have sitting around in your email or was packaged in a .doc file someone sent you.

    But thats not whats causing problems with your computer.
  4. shoe933 thread starter macrumors newbie

    May 25, 2008

    Then why is my Safari and Word shutting down randomly? Should I be running a virus program?
  5. Peace macrumors Core


    Apr 1, 2005
    Space--The ONLY Frontier
    Run some utilities like Disk utility. Repair permissions etc. If you have a program like cocktail clean out your caches etc..

    You could have too much garbage and/or you're using up all your HD space.

    Check your memory too.
  6. AlaskanFox macrumors newbie

    Jan 27, 2009
    No virus for Mac! ClamXav for windows users...

    I had that same "trojan" on my last mac (inside an email attachment) and did not have the symptoms you are having.
    For the slow computer try resetting your PRAM memory:
    1.shut down computer.
    2.turn on computer. and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
    4.Hold the keys down until the computer restarts and you hear the startup sound for the second time.

    What applications are shutting down and what are you doing when that happens?

    I talked with Apple tech support today and they say there was a virus for the mac 2 years ago. All the virus did was- force the user to keep entering the network password in the user preferences. Oh NO! The fix was to keep the user preferences password locked until you wanted to modify it.

    There are NO reported trojans or worms for the mac yet- according to tech support, of course I saw lots of users on this forum stating otherwise. Maybe if they called tech support Apple would resolve the issue. Until its official I don't believe it can be that bad.

    ClamXav is nice to use if you sent emails to windows users. Just read their homepage:
    "Today, the number of viruses actively attacking OS X users is...NONE!"

    Macs Rule!
  7. Jethryn Freyman macrumors 68020

    Jethryn Freyman

    Aug 9, 2007
    It's a Windows trojan.

    ClamXAV doesn't detect anything that can affect OS X.
  8. GGJstudios macrumors Westmere


    May 16, 2008
    There are no viruses in the wild that affect Macs. No Windows application, including trojans, viruses, worms or other malware will run on a Mac, unless it's in Boot Camp or something like Parallels or VMware Fusion, which emulate Windows.

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