Before you do the proper thing and flatten it and reinstall from trusted
sources..ask yourself your real intrusion points.... if the computer was
merely "on", "people" should be able to get on the box without
a. a backdoor implanted on their first probably by your teenagers
surfing and downloading free software
b. a vulnerability in an installed program
c. a port/or way on to that box (what ports were open inbound from the
Internet)
I'm guessing your kids got nailed with malware/peer to peer trojans
because they've been surfing places they shouldn't have.
.
CERT®/CC Steps for Recovering from a UNIX or NT System Compromise:
http://www.cert.org/tech_tips/win-UNIX-system_compromise.html
Microsoft Says Recovery from Malware Becoming Impossible
http://www.eweek.com/article2/0,1895,1945808,00.asp?kc=ewnws040406dtx1k0000599
Help: I Got Hacked. Now What Do I Do? - Microsoft TechNet: Security
Management Column:
http://www.microsoft.com/technet/community/columns/secmgmt/sm0504.mspx
Anti-Malware Engineering Team : News on Alcan, Mywife.E:
http://blogs.technet.com/antimalware/archive/2006/04/03/424113.aspx
If the kid had admin access and able to install anything.. 'that's how
the critter got on the box.
When teenagers are in the house, either have them with non admin access
or plan on nuking and paving a machine on a regular basis that's set up
just for them.
pentesticle@yahoo.com wrote:
Hey list!!!
My kids left their puter on while I was away on vacation and some
loverly person managed to gain access to the puter. Unfortunately I was on
vacation so had all of my systems off except the one the kids turned
back on, so my sniffer was off as well.
I don't know much from the forensics side of the house as I mainly
perform audits and such, so was hoping I could get some insight as where to
start and tools to use to find everything that was done to the
computer.
My AV software picked up a trojan, but figure it was after the fact and
is still resident on the system. It almost appears that they accessed
hotmail and picked up files from a mailbox. (sure wish my sniffer would
have been on :( )The local Symantec firewall is being bypassed and most
of the services won't start. Term Svcs among others has been set to
manual but starts up automatically with Windows (I had it disabled before)
and will not allow me to stop the service. I keep the system up to date
with patches and AV signatures and use 25 char passwords with
fingerprint scanners for the kids to use, so am not certain what they used to
exploit, but given time anything can be broken. My fingerprint scanner
doesn;t show any failed logon attempts while we were gone but the
security logs show numerous failed attempts by all of the accounts so assuming
they are trying to remotely access the PC. I'm thinking they gained
access to the account that was currently logged in as it shows th
at particular account's priviledges were escalated in the log files
several times then shortly after it shows the system account making
changes to the system.
Anyway, if somone could recommend where to start and what tools I
should use, I guess this will begin my forensics career and OJT...
Much appreciated :)
--
Letting your vendors set your risk analysis these days?
http://www.threatcode.com
