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in a possible related event some one tried to access my machine but the firewall stopped it at the same time after i posted this thread. they tried port 38332. whats weird is i noticed it mentioned megaupload. that kind worries me. maybe im downloading too much.

i whois'd them an got this.

okiwan@okiwan-desktop:~$ whois


# Query terms are ambiguous. The query is assumed to be:

# "n"


# Use "?" to get help.



# The following results may also be obtained via:

# http://whois.arin.net/rest/nets;q=174.140....;showARIN=false


NetRange: -




NetHandle: NET-174-140-128-0-1

Parent: NET-174-0-0-0-0

NetType: Direct Allocation



RegDate: 2008-11-20

Updated: 2009-12-11

Ref: http://whois.arin.net/rest/net/NET-174-140-128-0-1

OrgName: Carpathia Hosting, Inc.

OrgId: CARPA-3

Address: PO Box 2145

City: Ashburn

StateProv: VA

PostalCode: 20146

Country: US

RegDate: 2003-04-24

Updated: 2008-04-10

Ref: http://whois.arin.net/rest/org/CARPA-3

ReferralServer: rwhois://rwhois.carpathiahost.com:4321

OrgTechHandle: CHIA-ARIN

OrgTechName: Carpathia Hosting, IP Administration

OrgTechPhone: +1-703-740-1730

OrgTechEmail: ipadmin@cirn.net

OrgTechRef: http://whois.arin.net/rest/poc/CHIA-ARIN

OrgAbuseHandle: CHAP-ARIN

OrgAbuseName: Carpathia Hosting, Abuse POC

OrgAbusePhone: +1-703-740-1730

OrgAbuseEmail: abuse@carpathiahost.com

OrgAbuseRef: http://whois.arin.net/rest/poc/CHAP-ARIN


# ARIN WHOIS data and services are subject to the Terms of Use

# available at: https://www.arin.net/whois_tou.html


Found a referral to rwhois.carpathiahost.com:4321.

%rwhois V-1.5:003eff:00 rwhois.carpathiahost.com (by Network Solutions, Inc. V-






network:Org-Name:Megaupload Limited

network:Street-Address:Room 1204, 12th Floor Shanghai Industrial Investment Building 48-62 Hennessy Road













network:Org-Name:Carpathia Hosting, Inc

network:Street-Address:21711 Filigree Ct Suite A








Edited by okiwan
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Its the internet. 99.9% of these are automated, bots, worms, etc. Get yourself behind a router with NAT you will never see them being able to access your machine (unless you are 1, in the DMZ, 2 port forward and leave it open 24/7 or 3 have uPnP enabled which is a no-no.)

Now, as to your firewall, were you doing anything on Megaupload at the time? This could have just been redundant session data from your browser after using that site and closing the page. For example, run tcp dump, wireshark, or even TCP View on windows(which is a really handy tool to end sessions for things like twitter's cloudfront that leaves tons of sessions open, which I think is probably why they always say "over capacity" and give me the fail whale). Then go to some web sites, then close the browser. Watch as you will still see traffic coming in from some of these sites even after the browser has closed. Using TCP for the internet, packets will still come in for an attempt to SYN/ACK/PSH/FIN etc. The sites don't always know you closed your browser and continue to try and keep the session alive until it times out. Browsers don't send the RST or FIN packet when you close them, so until the session times out, you might see traffic still coming in to your machine.

Another thing you may see this from is torrents. Lets say you downloaded something using bit torrent, like the latest BackTrack distro (Cause you only download legal stuff, right? - Don t answer that). After your done downloading the torrent and have gone offline, your IP address is part of the loop. So when people are trying to download their copies of the torrent, your IP will be in the list of seeders automatically. Some trackers are smart enough to remove users when a certain number of days has gone by, but by design, your in their for life. Now you go to log on to your machine, do your normal browsing, internet access, but not seeding this torrent and all of the sudden your firewall says you have 100's if not 1000's of access attempts. This is because the tracker and the people trying to download want to access your copy of the file to be shared, and thus you will see this kind of traffic and session connections on ports not just for your Bit Torrent client settings, but any port range in an attempt to create a new session with you as a node on the farm.

Hope that eases your mind a bit. Scans are just something to be aware of, but so long as you have your stuff flocked down properly, no services open to the internet, not in a DMZ, good firewall and router setup, you shouldn't have to worry about any of this.

Edited by digip
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There is no such thing as random... Unless someone knows otherwise? :blink:

In regards to a computer picking a random number.

Ok, we say random because people understand they weren't a target. Maybe systematic is a better choice of words. Systematically scanning all IP's in a given range.

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now im scared again. :o

No reason to be scared, that's how the system works.

I too use Torrents, emule and limewire to download stuffs, and this stuff happens to me too

Just make sure you have a good firewall in place and you are behind NAT.

Edited by Infiltrator
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