— A high-volume list which permits people to ask "stupid questions" without being derided as "n00bs". I recommend this list to network security newbies, but be sure to read Bugtraq and other lists as well.
RE: adding another defence layer against viruses/worms
boaz.shunami (Nov 25)
Hi Juan,
I would advise your Client to either:
1. Have solid policy as to what sites are accessible/are not accessible
from his branches (can be enforced with bluecoat and the like...)
2. Segregate the network the branches have access to (kind of DMZ) from
his LAN using FW.
3. Give low level permissions to the branches on the core.
My 2c...
Thanks,
Boaz
-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce ()...
scalable syscall proxying
pleed (Nov 25)
Hi there,
some weeks ago i ve read papers about syscall proxying.
When i was looking for implementations, i just found very specific
code (e.g. at ueberwall.org) that could be used for minimal application.
Thats why i thought it could be funny to write my own, scalable syscall
proxy.
My concept includes:
- using ptrace SYSEMU to catch a process syscalls instead of
overwriting libc wrappers
- providing an interface to enable/disable...
Re: Dealing with port/vulnerability scans
Michael Painter (Nov 25)
Tony Raboza wrote:
Chapter 1. Getting Started with Nmap
Legal Issues
http://nmap.org/book/legal-issues.html
------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate. We look at how SSL works, how
it benefits your company and how your customers can tell if a site is secure. You will...
Re: Is snort an overkill for desktop only environment ?
pleed (Nov 25)
Alexander Klimov wrote:
In my opinion NIDS on the host itself does not make the box more secure.
When deploying snort, you normaly want to know if there already has been a
_successful_ attack, because when connecting to the internet you re
always being
attacked but mostly without any affect to your system. In your case if
your desktop
is attacked successfully, i wouldnt trust the NIDS output anyway.
In addition snort is just helpfull if someone...
Re: When SPAMMERS Pay You !
Meta Junkie (Nov 25)
Shreyas Zare:
didn't actually come from PayPal.
Did you actually receive the ten cent deposit into your account?
If I was to wager, just based upon what I see here - I'd say you
didn't. This looks more like a fishing (aka phishing) attack. But,
if I'm wrong in my guess - please let me know!
- metajunkie
ps - I have an article or two regarding other phishing attacks at
http://cyber-jutsu.blogspot.com...
Re: Dealing with Scans (portscans, vulnerability, etc.)
Aarón Mizrachi (Nov 25)
Indeed. That's right.
Not all ISP's take actions against it users doing port scanning. Depends on
internal policy and local legislation.
First of all, we must secure enough our sites/servers to prevent attacks, even
if the attacker know every detail about our platform, including usernames,
ports, OS, versions, hardware, and more.
After that, we have two options to _delay_ scanning:
1- Restrict the scan: You can automatically block certain...
Res: Dealing with port/vulnerability scans
Leandro Marques (Nov 24)
Hello Tony,
I would enable those signatures, because you can check it in a better way to analyze real scans.
Depending on your IDS/IPS device, you can choose to block/log if it targets more than 10 ports, for example. You can
also check the kind of the event. A vuln scan can trigger a lot of signatures related to probes or some specific
protocol.
In additional, you can send an Abuse Letter to the owner of this IP.
I hope to be helpful....
Re: Is snort an overkill for desktop only environment ?
Alexander Klimov (Nov 24)
Because every new software package you install is a potential
source of exploitable flaws, even more so if it is always
working and getting its inputs from network.
Re: Dealing with Scans (portscans, vulnerability, etc.)
Jon Kibler (Nov 24)
Tony Raboza wrote:
First, your border firewall rules should block all inbound traffic that:
1) Is not targeted to a known service on a known IP address on your network.
2) Is not in response to traffic initiated from your network.
These two steps should cut down on a lot of the IDS noise.
Next, for services that you have exposed, run fail2ban (or similar) tool that
blocks morons trying to attack those services.
Then, report your firewall...
Security of information harvesting
maork-from-ork (Nov 24)
Hi group,
My client wants to harvest information about his servers (done through a consultant, not internal people) using
TreeSize Professional.
http://www.jam-software.com/treesize/
My question is: Is this a safe way to scan servers to determine what type of files should be archived? Any of you say
flaws in that software?
Thanks!
Mork
------------------------------------------------------------------------
Securing Apache Web Server with...
adding another defence layer against viruses/worms
Juan B (Nov 24)
Hi all,
I'm doing some security consulting for a client. this client have around 30 remote branches connected to his core. the
problem is that sometimes the AV fails to detect new viruses/worms coming from those branches so those viruses/worms
mess up his LAN.another problem is that the the client doesn't have much of control over the remote PCs in the
branches. so I thought about adding another layer of defence in which we will add an IPS...
Dealing with port/vulnerability scans
Tony Raboza (Nov 24)
Hi,
I'm tuning my IDS and I'm thinking of taking out the portscan/web
vulnerability scan rules. Why? Because, yes - I know that somebody
may be scanning my network - but, what can I do about it?
1. Block the IP? But, what if its NAT - meaning only 1
workstation/user did the port scanning, I would be blocking all the
possibly valid users behind that IP.
2. Report it to their ISP or to them? Then what?
I want my IDS console not to be too...
Re: whole disk encryption on multi boot laptop
Alexander Klimov (Nov 24)
The XP part is easy: TrueCrypt can encrypt in-place.
The modern way of Linux FDE is thru cryptsetup and LVM (you need an
unencrypted /boot partition). In theory, as far as there is enough
buffering, you can also encrypt in-place by dd: read from original
partition device and write to encrypted device mapped on the same
place, but in practice it is much safe and faster to get an external
HDD, copy Linux data to it, setup FDE for Linux, and copy...
Re: When SPAMMERS Pay You !
τ∂υƒιφ * (Nov 24)
Hi,
I have being doing my research on phishing lately and I tend to
analyze a lot of this emails. If your simply want to report any such
incident to pay pal forward the email to abuse () paypal com . Not sure
if they have a ticketing or live chat support.
You can read more about my research on
http://niiconsulting.com/checkmate/2009/11/05/a-phishy-story/ . I am
not promoting my write up :) It is just a reference.
Are toonel and freegate secure proxy servers?
Ali Asghar Toraby Parizy (Nov 24)
Hi
Is it possible that my username and password have been sniffed while i
use toonel or freegate proxies?
In spite of SSL encryption, Is it rational to use this proxies when we
transmit our secure information by internet (for example PAYPAL
account)?
Maybe, over there, somebody sniffs username and passwords! Is it
possible? Does it ever happened before?
toonel.net
en.wikipedia.org/wiki/Freegate...