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Solved: strange noise from computer was Unknown Backdoor Trojan -

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Holly3278's Avatar
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04-Nov-2004, 09:30 AM #16
Quote:
Originally Posted by dvk01
Pass

I'll move this to hardware now where someone else might have a better idea
Ok. Thank you for all the help you gave me dvk01. Now, to wait for someone to reply about the noise issue.
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04-Nov-2004, 04:12 PM #17
*bump*
Dick1038's Avatar
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21-Jun-2005, 02:46 PM #18
If you are paranoid, like me, about these pests getting in, I recommend adding a local-address-translating (LAT) router between your modem and computer. I'm assuming you have a high-speed internet service with an external modem. They are less than $100. This will hide your true internet address. It helps keep the hackers who sequentially try every address to find a vulnerable computer. If they happen to find your router, it won't respond to Windows commands.

These trojans can attach themselves to one of your valid files, like your Internet Explorer.
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08-Jul-2005, 04:20 PM #19
[QUOTE=Holly3278]Hi everyone. I seem to have gotten an "Unknown Backdoor Trojan" on my computer detected by an online Pest Patrol scan at None of my spyware scanners have detected this but the online scan did. It says that it goes by these aliases:

Backdoor.Lixy.h [Kaspersky]
Trojan.BAT.DeltreeY.bs [Kaspersky]
Trojan.Win32.Fynben.b [Kaspersky]
Trojan.Win32.TalkStocks.a [Kaspersky]

I had detected this trojan on my computer yesterday after doing a scan and then had to format my computer and reinstall everything to get rid of it. I updated everything and installed two firewalls plus Windows firewall and two anti-viruses (Norton and AVG) and I still have the trojan! Last night I scanned with Pest Patrol after the format and it wasn't there. Then my computer started acting up this morning and I scanned again and the trojan was back. I have now idea how I am getting this trojan! I use Webroot Spysweeper, Spybot Search and Destroy, Adaware (Spybot and Adaware are not yet downloaded and installed again), and Spyware Blaster. How on earth am I getting this thing?! What can I do to prevent it from coming back? I have 1 year of computer networking training and as far as I know I am not doing anything risky that would make me get this. Please help!

Here's a link to the page that Pest Patrol gave me about all this:

QUOTE]

I also had the same trojan attack. After formatting under DOS en replacing WinXp the trojan was back.
After a time i had a hardware defect. Can backdoor trojan destruct hardware?
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09-Jul-2005, 03:22 PM #20
I read in PC Magazine a while back that these trojans can attach themselves to other valid executable files. Your software that comes on CD's are OK. Try to check out any software that you downloaded. Also do a Google on the names of the trojan. Maybe someone has a fix.

Multiple software firewalls are a waste, from what I read. One good one is all that you need. Assuming you have a high-speed internet connection, I strongly recommend the hardware firewall using LAT router. I use a 4-port, Linksys Etherfast DSL/Cable Router. If you have multiple computers in your house, you can share your internet connection with all of them.
Holly3278's Avatar
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05-Dec-2005, 04:38 AM #21
Quote:
Originally Posted by Dick1038
I read in PC Magazine a while back that these trojans can attach themselves to other valid executable files. Your software that comes on CD's are OK. Try to check out any software that you downloaded. Also do a Google on the names of the trojan. Maybe someone has a fix.

Multiple software firewalls are a waste, from what I read. One good one is all that you need. Assuming you have a high-speed internet connection, I strongly recommend the hardware firewall using LAT router. I use a 4-port, Linksys Etherfast DSL/Cable Router. If you have multiple computers in your house, you can share your internet connection with all of them.
Thank you very much for this help.
Drahcir's Avatar
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08-Aug-2006, 05:34 PM #22
I also believe you may want to zero your drive rather than just reformat. Because a formatting of the hard drive just inserts a slash infront of the binary that says this is ok to write over however it does not delete it until it needs that space. Some free one pass zeroing software can be downloaded from cnet. I use 'Disk Kill' myself at the library I work at when a problem results in a reinstall. Seems to work pretty good for free.
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08-Aug-2006, 07:38 PM #23
Good Morning All, gee Holly what an exciting exercise!
Basically these kinds of problems can be difficult to address.
I also feel that low level formatting a drive before reloading is a good idea, but these problems spread worse than "wet silver paint".

This is the kind of circumstance that originally motivated me to begin exploring Linux systems.
Do you have any real need to have to use MS windows?

Sometimes using a dual booting kind of system can be very useful, it certainly breaks these kinds of cycles.
qldit.
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Prefer my friendly old all Intel P3-733 to the later machines I have.
Holly3278's Avatar
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11-Aug-2006, 07:10 AM #24
Quote:
Originally Posted by qldit
Good Morning All, gee Holly what an exciting exercise!
Basically these kinds of problems can be difficult to address.
I also feel that low level formatting a drive before reloading is a good idea, but these problems spread worse than "wet silver paint".

This is the kind of circumstance that originally motivated me to begin exploring Linux systems.
Do you have any real need to have to use MS windows?

Sometimes using a dual booting kind of system can be very useful, it certainly breaks these kinds of cycles.
qldit.
Yes, I need Windows XP because I am a big gamer and as far as I know, most of my games are not compatible with Linux or any other operating system except for maybe Macintosh and well, I never was a fan of Macintosh.
Holly3278's Avatar
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11-Aug-2006, 07:11 AM #25
OH yeah. Just thought I'd let you all know that I no longer have the problem.
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11-Aug-2006, 07:22 AM #26
Good Evening Holly3278, well done!
I do feel the viral thing will become much worse so you will need to keep an eye on protection. At least MS have released the Defender so that is one step in the right direction.
Cheers qldit.
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