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NTop session query script Fri, 22 Aug 2008 While coding the session monitor a couple of weeks ago I developed a quick script which could query ntop for session information. Jaime started using it for graphing now, so I thought it might be useful to soembody. Please find the code below. ::read more
posted at: 08:42 | path: /code | permanent link to this entry | 0 comments | Cheers to our guys at Campus Party Colombia :-) Thu, 10 Jul 2008
I'm writing these lines to cheer at my co-worker (@AlienVault) Santiago "Santi" Gonzalez, who went to Bogota for a couple of weeks in order to implement OSSIM as security event and information monitoring solution at Campus Party in Colombia. Back to the party. You can check out some pictures at Flickr, it's quite of a mess but I'll try to update this entry tomorrow with some interesting pictures. So, as always this is a nice place to test ossim, do some benchmarks and improve some stuff. The party in Valencia is due to the end of this month and we hope we'll be there too :-) Last but not least, a big hug to my friends in Turkiye. Another co-worker (Juanma) has been there a couple of weeks ago doing some training; he's enjoyed it alot and I hope the people undergoing the ossim training too. Edit 2008/07/10: removed links to sites that contain information about AlienVault customers.
posted at: 08:01 | path: /personal/campus | permanent link to this entry | 1 comments | An alternative solution to Nessus Feed licensing issues Fri, 13 Jun 2008 We've decided to start working on an alternative Nessus feed after Tenable having changed licensing again. Excluding even non-profit organizations and testing purposes completely from the feed seems contrary to the open source spirits, so we'll be investing a considerable amount of effort and money into providing a high quality feed for everyone. The final workings of it is still unclear, but we're aiming at the Sourcefire model: if you subscribe you'll get them instantly, everybody else gets them with a slight delay (we're discussing a one to four week delay). One of the goals we've got is getting a good bunch of people interested on this and willing to participate (sort of a Consortium maybe, although we're starting it internally right now) so if you could please share this with people who could have the skill/knowledge to contribute to this, I'd be more than grateful. Last but not least we're looking into a way of ensuring that the effort put into this by everyone won't be abused in any ways, so if anybody has got suggestions about model/licensing/etc it would be great to hear them. Adding a small slashdot badge too, this could be good to draw some attention on it and attract collaborators.
posted at: 10:44 | path: /ossim | permanent link to this entry | 1 comments | You are invited to take part in The Google Summer of Code(tm) 2008 Mon, 17 Mar 2008
Yay ! we're proud to announce that ossim has been chosen to take part int he google summer of code program. Brian, now it's your turn ;-). Congratulations! Your organization "OSSIM: Open Source Security Information Management" has been accepted in to the Google Summer of Code(tm) 2008. You have been assigned as primary point of contact and as an administrator for your organization. please visit http://code.google.com/soc/mentor_step1.html and sign up using your Google Account. Thanks. - Your friendly Google Summer of Code administrators
posted at: 20:46 | path: /ossim | permanent link to this entry | 0 comments | Interesting log collection / SIM collection document Fri, 01 Feb 2008
Just a short post pointing at a very interesting study published by the "Bundesamt fuer Sicherheit in der Informationstechnik" (part of the German Government dedicated to IT Security) about log analysis. Sadly it's in german and I don't know if they're going to translate it but I wanted to point at it since OSSIM is included as one of aprox fifteen products. Get it here.
posted at: 15:35 | path: /ossim | permanent link to this entry | 1 comments | OSSIM applied to ITIL Thu, 17 Jan 2008 Recently I stumbled across an interesting article talking about Microsoft, Opensource and ITIL where ossim was being mentioned. (the article can also be found googling for "ossim itil microsoft" in case the link breaks).
I've never been very keen about learning ITIL either (although I've heard about it everywhere during the last year) but this really caught my attention. In that paper ossim gets referenced only on the "security management" section, but I think that's mainly caused by ossim being hard to install, setup and understand when that article was written, so I thought I give it another try from my point of view, taking the included tools into account for the different ITIL sections.
The Information Technology Infrastructure Library is comprised by two main sets and a series of subsets (from what I've read on that article and the wikipedia):
Note: The definitions after each topic have been quoted from the MS article since they're small and concise. ::read more
posted at: 17:33 | path: /ossim | permanent link to this entry | 1 comments | Tutorial 5: Windows event logging Wed, 19 Dec 2007 The windows event log
As an introduction to windows event logging I recommend reading the following article: Monitoring and Troubleshooting Using Event Logs. It's the first interesting one I've found after googling for an introduction. This article reviews best practices for working with Windows event logs including how to interpret event messages, how to configure event logs, how to search and filter events, how to view events on remote systems, and how to use EventCombMT.exe and other tools to monitor events on multiple systems. ::read more
posted at: 15:54 | path: /ossim/tutorials | permanent link to this entry | 11 comments | Tutorial 4: Correlation engine primer Mon, 10 Dec 2007 Introduction
In order to answer to a recent forum post I had to do a quick research since it had been some time since I last tested this. Hello, Is there a document talking about how the directives are processed? One question that I have is if you have multiple directives created and an event comes in that matches the initial states of more than a single directive will both actually process the event, or only the first match (which I think is the case)? Thanks for any clarification you can provide. Stephen This post gives a bit of insight to how the correlation engine works and features some simple, custom made directives that help me answer that question. The test environment features two events belonging to the ssh plugin (plugin_id 4003):
::read more
posted at: 12:47 | path: /ossim/tutorials | permanent link to this entry | 3 comments | Tutorial 2: Syslog data mining with attached md5sum. AKA "Store 100% of data". Thu, 06 Dec 2007
1. The need. The Hype.There's obviously a need for storing vast amount of logs, and few things today aren't able to log into syslog. So it's just obvious to stumble upon that request every once in a while, and this tutorial illustrates the OSSIM approach at massive syslog data storage. Of course, where you say syslog you can say windows event log, snmp data, whatever generates a big amount of raw data.ComplianceI don't know much yet about all of this compliance stuff (I were lucky, Julio always has been much more knowledgeable on that area than me so I could skip it) but I guess I'll have to start learning, there are just too many people asking for it and I'm getting very curious.From what I've seen, a short list of regulations requiring, or at least strongly recommending a certain amount of raw data storage and reports are:
Centralized loggingMaybe the need is pure sysadmin's lazyness. You want to be able to answer to questions you get asked by your management / customers in the easiest possible way.I heard this from a guy a couple of days ago: the more information about your network you've got, the more answers you can give, and that's exactly what SIM/SEM systems are good at. Data miningThis is a bit redundant with the previous entry, but there are people that just don't care about exact data, but they're in desperate need of colorful graphs in order to be able to keep their bosses calm. Well, having logs from everything in your network allows for easy colorful report generation with little knowledge of the underlying data. The worthyness of those reports in the end will be highly questionable of course.::read more
posted at: 20:10 | path: /ossim/tutorials | permanent link to this entry | 8 comments | Case Study: Campus Party Tue, 04 Dec 2007
We've just posted a new document at http://www.ossim.com. You can see it on the right, it's a case study about a deployment we've done this summer.
In a couple of months there's another campus party, this time at Sao Paulo, Brazil. I'm pretty sure OSSIM will be present there too and we'll be having fun again. (Not forgetting the hard work, I only were a couple of days there, before the event, but my two co-workers Juan and Roberto did a great job working 14-hour shifts).
posted at: 11:30 | path: /personal/campus | permanent link to this entry | 0 comments | OSSIM Mobile now available ;-) Sat, 01 Dec 2007 Well, kindof at least... Since Apple's iPhone is basically a stripped down MacosX and it has some nice toys to play with, I thought I'd give the provided python port a try and fire up the OSSIM agent. As expected everything worked like a charm and getting ossim up & running was very easy. Here is the rest of it. ::read more
posted at: 18:43 | path: /ossim/plugins | permanent link to this entry | 2 comments | MySQL performance tuning applied to OSSIM. Case 1. Fri, 30 Nov 2007
I'd like to share my first actual success on mysql tuning, after having spent a couple of days reading everything I could about the matter (and still waiting for the books to arrive).
After enabling log_slow_queries, one of the first queries popping out continuously was the following: SELECT *, inet_ntoa(src_ip) as aux_src_ip, inet_ntoa(dst_ip) as aux_dst_ip FROM event_tmp order by id desc limit 1; ::read more
posted at: 11:45 | path: /ossim/tuning | permanent link to this entry | 1 comments | MySQL Performance Tuning Wed, 28 Nov 2007
I've finally decided to learn everything I could about MySQL performance tuning; we're working on highly tuned appliances and this is a must for high-traffic environments.
These last days we've discussing about this at the office and we couldn't agree about the type of database configuration using MySQL was optimal for the broadest range of users. ::read more
posted at: 21:02 | path: /ossim/tuning | permanent link to this entry | 1 comments | Plugin Tree && Graph installer update Mon, 26 Nov 2007
I thought I'd post a plugin tree I just hacked together here. It uses a javascript library and could be useful to someone.
As a little extra, below is some sample output from the graph package installer. Pablo's almost done with it :-)
posted at: 14:54 | path: /ossim/plugins | permanent link to this entry | 1 comments | Tutorial 1: Host Inventory using OSSIM Sun, 25 Nov 2007 This post will be the first of a series of tutorials describing how to accompliush certain useful things using OSSIM. A friendly IT teacher from Oklahoma suggested that it would be a good idea, and I have to agree. And on top, it's relaxing :-). So here we go, this first installment will focus on deploying OCS Inventory on a couple of hosts, getting them to log to the central ossim server and see how it shows up in our interface. This will demonstrate the powerful cross-platform inventory capabilities built into ossim thanks to the new OCS integration. The test environment consists of 6 devices:
::read more
posted at: 11:26 | path: /ossim/tutorials | permanent link to this entry | 9 comments | Installer updates. Sat, 24 Nov 2007 Let's get a first meaningful update running too. We have been working hard these last weeks to get the installer out and polish some outstanding issues. After the initial releases, our priorities are now focused on:
In the meantime, we preinstalled OSSEC (thanks Daniel for your help), fixed the Nagios plugin, fixed rrd_plugin which was missing a config line and added Munin to the sensor pages for performance monitorization.
posted at: 21:21 | path: /ossim/installer | permanent link to this entry | 5 comments | |
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