Unknown Trojan

Viruses and worms
1

Hi,

I wonder if anyone can help me, A good friend of mine has been having problems with his DSL connection. He gets randomly gets disconnected when using the net. Sometime he can go 10 mins and it go’s other times he can use it all day and everything is OK.
He’s done all the usual tests, Virus, Maleware etc, re-install his DSL software, checked cables and filters etc. He has had some contact with his provider, but everything seems to be OK and the line is OK too.
He has since said to me, that there is a new as yet undetected trojan going around targating older OS, he is using XP and this may be causing he net problem. The

Anyone heard about this new Trojan?
Does it cause internet problems?
Be great if anyone can help thx,

2

what do you mean by new …there was something like 73 000 new today so do you have more info ?

Malware baddies crank up Trojan production
http://www.theregister.co.uk/2011/04/06/malware_trends/

Sometime he can go 10 mins and it go's other times he can use it all day and everything is OK.
sounds more like a router problem to me.... malware likes to have internet connection.... so it can do what it was designed for
3

Sry, but you can’t believe the internet connection always works well
sometimes happens me too
How about when the internet vanishes again check for connection problems
Most of the time this works well.
If it finds a problem it gives you good instructions
But don’t expect it will find them in 100% of the cases

4

Hi Dzjango21,

This could be amazon related, but you check by running a scan here: http://n4.netalyzr.icsi.berkeley.edu/
for possible issues,

polonus

5

Thanks Polonus i spotted a few red section that need addressing. I’ll look further into these tomorrow and see if i can fix these.

6

Results?

Summary of Noteworthy Events –

Major Abnormalities

Your DNS resolver returns results even when no such server exists

Minor Aberrations

Certain TCP protocols are blocked in outbound traffic
Fragmented UDP traffic is blocked
The network path does not reply when it needs to fragment traffic
None of the server's bandwidth measurement packets arrived at the client
Network packet buffering may be excessive
The network blocks some or all EDNS replies
Not all DNS types were correctly processed
We received unexpected and possibly dangerous results when looking up important names
7

could be solved but do your friend have any other security programs installed on the computer like a third party firewall that could block the access to the dsl program?

just my thought on the topic.

8

He’s using PC TOOLS FIREWALL Plus and/or maybe the Windows based one!