Please help - Whois this, don't know what to make of this

I came in and my firewall was goin' nuts so I backtraced the address that had tried to access a port and I don't understand this.

The Whois for 200.152.97.160 is part of LACNIC and the info. states that "this whois server contains only DOD information". RS.INTERNIC.NET was listed and so was www.internic.net, which is operated by the Dept. of Commerce. I tried to retrieve info. from there, but it seems that it is purposely untraceable or I just don't know what I'm doing....so that's my question: Who the hell is this and why are they so hard to track and why are they trying to access my computer??!!! Okay that's 3 questions.

Any help would be greatly appreciated.

What port is this address trying to access? If its tcp/135, you're looking at Blaster/Lovesan.

And even worse, I don't know how to find out. The info. in the firewall's log is TCP with the local IP 68.208.45.33 and from that I found the other DOD stuff.

OrgName: Latin American and Caribbean IP address Regional Registry
OrgID: LACNIC
Address: Potosi 1517
City: Montevideo
StateProv:
PostalCode: 11500
Country: UY

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: TINNIE.ARIN.NET
NameServer: NS.LACNIC.ORG
NameServer: NS.DNS.BR
NameServer: NS2.DNS.BR
Comment: This IP address range is under LACNIC responsibility for further
Comment: allocations to users in LACNIC region.
Comment: Please see http://www.lacnic.net/ for further details, or check the
Comment: WHOIS server located at whois.lacnic.net
RegDate: 2002-07-27
Updated: 2003-06-12

TechHandle: LACNIC-ARIN
TechName: LACNIC Hostmaster
TechPhone: (+55) 11 5509-3522
TechEmail: abuse@lacnic.net

OrgTechHandle: LACNIC-ARIN
OrgTechName: LACNIC Hostmaster
OrgTechPhone: (+55) 11 5509-3522
OrgTechEmail: abuse@lacnic.net

Somone found a server that was open in .uy and is using this for blaster scans and 'bot placement.

And from there I got the 200.152.97.160 info. that states it contains DOD info.

what are these people trying to do to get into my computer?

Do they have lives or what?

I pulled this from lacnic (Latin American NIC). This is a well known ISP in the security field for all the script kiddies that try to hack around from it. There are no "hacking" laws in Brazil hence you see a lot of decidedly illegal and somewhat illegal activity originating from Brazilian IPs.

And don't waste your time reporting them. These clowns don't care and even if they did there's nothing they can do about it. My advice is just blow it off. If it persists, consider returning something to your pesky sender.

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: 20030814 AA
nslastaa: 20030814
nserver: NS1.DNS.BR
nsstat: 20030814 AA
nslastaa: 20030814
nserver: NS2.DNS.BR
nsstat: 20030814 AA
nslastaa: 20030814
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

Small-time wannabe hackers use them to try to find open connections that aren't blocked by a firewall.

Your firewall is just doing its job - and it should have an option to turn off those notifications to you. They can get annoying after a while.