Backdoor Trojan
Wednesday, November 12, 2003 at 6:35 pm
Windows XP Annoyances Discussion Forum
Posted by Marc
(1 messages posted)
I had a similar experience on a friend's PC, I searched for a solution (thus finding
this website) but couldn't find any resolve...
but eventually discovered a Backdoor-BAM Trojan on his machine, once we by-passed
his gateway and connected directly to his broadband modem through his computer's
NIC, and downloaded the newest anti-virus signature definitions for his virus scan.
We, of course, cleaned out the virus, but on subsequential reboots, windows refused
to let us log in, (in an attempt to log in, the system would quickly log the user
back out without even displaying a desktop) the theory is the trojan was inserted
in a way that its deletion would cause collateral damage to the system files, (or
something to that effect) so we simply did a repair install of Windows XP on his
system and it recovered nicely.
The network now works fine, and the intermitten baloon pop ups have gone away. The
theory being that the trojan was trying to connect to an outside computer, but the
gateway's built in firewall was blocking the trojan's efforts, but also resulted
in the connection dropping about every 10-15 seconds or so. I didn't have the foresight
at the time to check the gateway's logs to see if the theory was correct.
On Thursday, September 18, 2003 at 6:59 pm, MWeiland wrote:
>I'm having similar problems over the past few weeks. I have an Intel Anypoint 10MB
>PCI NIC (Broadcom under the skin, I think), and am *constantly* getting intermittent
>"A network cable is unplugged" balloons. (Then the connection comes back momentarily.)
>Never had this until a few weeks ago.
>- My first thought was the NIC was flaking out, so I bought a new one, but still
>the same results.
>- I re-installed the NIC into another PCI slot, no help.
>- I replace the RJ11 cable between the NIC and the wall jack.
>- I uninstalled and re-installed the drivers (including the Anypoint "cleandrv"
utility),
>still no help.
>
>The only thing I can think of that's changed in my environment recently is the addition
>of another telephone on my home phone system... I have a lot of phones. Is there
>any possibility that "too many phones" would cause a network connection to drop
out
>intermittently?
>
>I don't suspect the actual wires in the wall; the telephone connected out of the
>Anypoint NIC works fine.
>
>I have 3 other Anypoint devices in the house and none of them are having any trouble.
>
>Thanks for any advice.
>Michael Weiland
>
- Written in response to:
- re: Network Cable Unplugged (MWeiland: Thursday, September 18, 2003 at 6:59 pm)
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