Forum Home
Press F1
 
Thread ID: 27604 2002-11-26 18:43:00 Who's trying to get into My Computer? lofty (2638) Press F1
Post ID Timestamp Content User
101626 2002-11-26 18:43:00 Over the last three days, I've noticed (via zone alarm) that my system is being "sought" from one source in particular, on a pretty regular basis even when offline.
Can any one help identify the source? - or explain why the sudden interest in my system??!!
Copied below is a transcript of (an example of) Zone Alarm's log file:

ZoneAlarm Logging Client v2.6.88
Windows 98-4.10.2222- A -SP
type,date,time,source,destination,transport
FWIN,2002/11/27,01:56:22 +13:00 GMT,200.206.188.56:1048,203.167.180.25:137,UDP
FWIN,2002/11/27,02:05:28 +13:00 GMT,0.0.0.0:68,255.255.255.255:67,UDP
FWIN,2002/11/27,02:11:07 +13:00 GMT,0.0.0.0:68,255.255.255.255:67,UDP
FWIN,2002/11/27,03:11:36 +13:00 GMT,0.0.0.0:68,255.255.255.255:67,UDP

Below is an example of Zone Alarm's "pop up" alert:

The firewall has blocked an Internet broadcast to your computer (DHCP) from 0.0.0.0 (UDP Port 68).

Occurred: 8 times between 27/11/02 06:28:50 and 27/11/02 07:11:32

Thanks

Lofty
lofty (2638)
101627 2002-11-26 19:02:00 Even when offline? That's pretty determined, and I would have thought pretty impossible.

Are you on a local network?

Also, usually 0.0.0.0 means your own machine. You might have something on your own machine that is attacking itself. May not be an attack as such.

robo.
robo (205)
101628 2002-11-26 19:07:00 Robo - em? thanks and eh??

I've just installed a network card - and yes - it DID occur to me that this may be in some way connected. But eh?? How

By the way thanks for sucj a ridiculously fast reply - go back to bed mate

Lofty
lofty (2638)
101629 2002-11-26 19:18:00 Again - to Robo (or anyone less unRobo than me)

The Network card is installed but I'm not on a network - installed for my laptop but not used yet.

Thanks

Lofty.
lofty (2638)
101630 2002-11-26 19:21:00 as for the other IP address........
WHOIS Query Result for 200.206.188.56


OrgName: Latin American and Caribbean IP address Regional Registry
OrgID: LNIC

NetRange: 200.0.0.0 - 200.255.255.255
CIDR: 200.0.0.0/8
NetName: LACNIC-200
NetHandle: NET-200-0-0-0-1
Parent:
NetType: Allocated to LACNIC
NameServer: ARROWROOT.ARIN.NET
NameServer: BUCHU.ARIN.NET
NameServer: CHIA.ARIN.NET
NameServer: DILL.ARIN.NET
NameServer: NS.LACNIC.ORG
NameServer: NS.DNS.BR
NameServer: NS2.DNS.BR
Comment: This IP address range has been delegated to LACNIC.
Please see http://www.lacnic.net/ for further details,
or check the WHOIS server located at whois.lacnic.net
RegDate: 2002-07-27
Updated: 2002-11-18

TechHandle: LACNIC-ARIN
TechName: Latin American and Caribbean IP address Regional R
TechPhone: (+55) 11 5509-3525
TechEmail: hostmaster@lacnic.net

OrgTechHandle: LACNIC-ARIN
OrgTechName: Latin American and Caribbean IP address Regional R
OrgTechPhone: (+55) 11 5509-3525
OrgTechEmail: hostmaster@lacnic.net

# ARIN Whois database, last updated 2002-11-25 19:05
# Enter ? for additional hints on searching ARIN's Whois database.


.Clueless
Clueless (181)
101631 2002-11-26 19:25:00 Oops should have read that first..
Step 2 in the chase:


% Copyright LACNIC lacnic.net
% The data below is provided for information purposes
% and to assist persons in obtaining information about or
% related to AS and IP numbers registrations
% By submitting a whois query, you agree to use this data
% only for lawful purposes.
% 2002-11-26 17:23:01 (BRST -02:00)

inetnum: 200.128/9
status: allocated
owner: Comite Gestor da Internet no Brasil
ownerid: BR-CGIN-LACNIC
responsible: Frederico A C Neves
address: Av. das Nações Unidas, 11541, 7° andar
address: 04578-000 - São Paulo - SP
country: BR
phone: +55 11 9119-0304 []
owner-c: CGB
tech-c: CGB
inetrev: 200.128/9
nserver: NS.DNS.BR
nsstat: 20020830 AA
nslastaa: 20020830
nserver: NS1.DNS.BR
nsstat: 20020830 AA
nslastaa: 20020830
nserver: NS2.DNS.BR
nsstat: 20020830 AA
nslastaa: 20020830
remarks: These addresses have been further assigned to Brazilian users.
remarks: Contact information can be found at the WHOIS server located
remarks: at whois.registro.br and at http://whois.nic.br
created: 19950104
changed: 20020902

nic-hdl: CGB
person: Comite Gestor da Internet no Brasil
e-mail: blkadm@NIC.BR
address: Av. das Nações Unidas, 11541, 7° andar
address: 04578-000 - São Paulo - SP
country: BR
phone: +55 19 9119-0304 []
created: 20020902
changed: 20020902

% whois.lacnic.net accepts only direct match queries.
% Types of queries are: POCs, ownerid, CIDR blocks, IP
% and AS numbers.



.Clueless
Clueless (181)
101632 2002-11-26 19:28:00 and the second IP (which i assume was that allocated to you by your ISP, clear)


WHOIS Query Result for 203.167.180.25

% [whois.apnic.net node-2]

% How to use this server http
//www.apnic.net/db/

% Whois data copyright terms http
//www.apnic.net/db/dbcopyright.html

inetnum
203.167.128.0 - 203.167.191.255

Origin
CLEAR-NZ

descr
CLEAR Communications Ltd

descr
24/7 CLEAR NOC phone +64 9 912-4990

country
NZ

Admin. Contact
CCNO1-AP

Tech. Contact
CCNO1-AP

Notify
netobjs@clear.net.nz

mnt-by
APNIC-HM

mnt-lower
MAINT-CLIX-NZ

changed
hostmaster@apnic.net 20000814

changed
hostmaster@apnic.net 20010710

status
ALLOCATED PORTABLE

source
APNIC

role
CLEAR Communications Network Objects Maintainer

address
ISP Duty Officer, CLEAR Net Operations

address
CLEAR Communications Limited

address
Private Bag 92143

address
Auckland

country
NZ

phone
+64 9 912-5024

fax-no
+64 9 912-5008

e-mail
netobjs@clear.net.nz

Admin. Contact
CCNO1-AP

Tech. Contact
CCNO1-AP

NIC Handle
CCNO1-AP

remarks
For network abuse contact abuse@clear.net.nz

remarks
For 24/7 after-hours NOC, please call +64 9 912-4990

Notify
netobjs@clear.net.nz

mnt-by
MAINT-CLIX-NZ

changed
netobjs@clear.net.nz 20010821

source
APNIC


.Clueless
Clueless (181)
101633 2002-11-26 19:30:00 And my sourse for this info?
here (eamnesia.com)
go to the "reverse IP lookup" link

.Clueless
Clueless (181)
101634 2002-11-26 19:32:00 And unless the brazillian address keeps coming up, i really wouldn't be too worried.

Whoa! 1 reply 5 posts!

.Clueless
Clueless (181)
101635 2002-11-26 20:03:00 When you installed the network card it look as though a dhcp client was installed as well . This client is periodically trying to find a dhcp server, so it can give your ethernet card an IP address .

I suggest you assign a static ip address for you ethernet card say 192 . 168 . 0 . 1 under tcp/ip properties of network properties (and use a netmask of 255 . 255 . 255 . 0) . This way you will avoid the fruitless search for a dhcp server .

You'd think it wouldn't bother doing this when you aren't plugged into a network but it does :-)
gibler (49)
1 2