September 12, 2009 | Jaime Blasco

LUHN checksum algorithm Lua implementation

I have wrote a LUA function that implements the LUHN checksum algorithm (requires bitlib), this algorithm checks that a sequence of digits is a valid credit card number. Here is the code:local bit = require("bit")local band, bor, bxor = bit.band, bit.bor, bit.bxorfunction checksum(card)num = 0nDigits = card:len()odd = band(nDigits, 1)for count = 0,nDigits-1 do…

September 1, 2009 | Jaime Blasco

0-day in Microsoft IIS 5/6 FTP

A 0-day exploit in Microsoft IIS 5/6 FTP was recently published on Milw0rm while HDMoore is porting the bug to Metasploit.Alienvault’s feed customers are protected with the directive released today:45046 :AV Possible 0day IIS FTP Exploit against DST_IPhttp://isc.sans.org/diary.html?storyid=7039UPDATE:We have previously coverage with two directives present on Alienvault Professional…

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August 23, 2009 | Dominique Karg

AlienVault/OSSIM Job Opening: Documentation Writer required.

Hello all,we’re looking for somebody to assist us in the elaboration ofdocumentation around OSSIM, it’s components and Open Source Securityin general. We require strong knowledge both in English written skillsas well as experience on OSSIM. We are willing to pay on a per-workbasis up to 3000 or 4000 . a month, with an option to get…

July 14, 2009 | Jaime Blasco

Infocon raised to yellow for Excel Activex vulnerability

Microsoft has released an advisory related to Office Web Components Activex. The ISC has raised the Infocon to yellow due to the active exploitation of the vulnerabilityfrom several .cn domains.Alienvault’s feed customers are protected and covered with these directives:45050: AV Possible Malicious Server exploiting Excel ActiveX Client against DST_IP (CVE-2009-1136)45051: AV Possible Excel ActiveX Client…

July 7, 2009 | Jaime Blasco

Ossim: 0-day in Microsoft DirectShow

A 0-day exploit in Microsoft Video ActiveX Control is being exploited by malicious sites. Many people is covering this vulnerability and seems that will be widely deployed.Alienvault’s feed customers are protected and covered with these directives:45046:AV Possible MSVidCtl Client side attack detected against SRC_IP (KB-972890)45047:AV Possible Malicious Server exploiting MSVidCt against DST_IP (KB-972890)45048:AV…

June 20, 2009 | Dominique Karg

Can OSSIM be considered a SIEM? Is it enterprise ready?

The story starts as following. A couple of years ago Dr. Anton Chuvakin (for those who might not know him a well renowned security professional and speaker) made a prediction for 2006: that a Credible Open-Source SIM would not arrive.A year later he said this goal hasn’t been reached (as predicted). I remember being quite pissed off and upset…

June 20, 2009 | Jaime Blasco

sobek-hids: Host Monitoring System

I’ve just created a google code’s project with some code I wrote some time ago.Sobek-Hids is a python based Host IDS system capable to monitor:Registry ChangesFile ActivityProcess CreationPrinting JobsExternal Drives (USB Disk Plugs)Shared ResourcesWindows AccountsLogonFirewall ChangesI hope I will have the time to continue and improve this…

May 5, 2009 | Dominique Karg

Request for case-studies, testimonials, comments and feedback

A friend of mine is preparing a speech at a security conference this summer around OSSIM. He asked if I could get some feedback, case-studies or anything that could backup and enrichen his speech, this is what this post is for :-).So please, should you have anything (wether it’s good or bad, happy or sad) to say around…

May 2, 2009 | Dominique Karg

New Instaler beta: 1.2beta6

I’m happy to announce the availability of the next beta, AV Installer beta6 http://data.alienvault.com/ossim-installer_1.2.beta6.iso [no longer available]. (md5: 21204ecf2949a1d9ac9838b3c694b72d.Again, thanks a ton to everybody testing the betas and reporting bugs / improvements, with your help this is already the best release that’s been…

April 3, 2009 | Dominique Karg

Here comes another beta, beta #5

Just uploaded a new AlienVault OSSIM installer beta, Beta 5 http://data.alienvault.com/ossim-installer_1.2.beta5.iso [No longer available]. As always, thanks a ton to everybody helping out on testing. Besides Anton, Greg, Kristian and Stephan there are many others helping, both on forums or anonymously (found some old friend’s domain names in the apache log for update…

March 27, 2009 | Dominique Karg

How to make good friends

I just wanted to share a quick mail we’ve received tonight at AlienVault. I’m hiding the user’s identity until he grants me permission to disclose it, which I doubt he’ll do btw.The mail did read as following:Subject: Port scan from you guys to my server from 207.158.15.208. Cease and desist.I installed your ossim product…

March 19, 2009 | Dominique Karg

Installer 1.2 beta3 available

And another quick post. New beta is out, thanks a ton to everybody reporting bugs. This time there aren’t big change, but a ton of small glitches have been fixed. Grab it here http://data.alienvault.com/ossim-installer_1.2.beta3.iso [No longer available]. As the last time, updates will focus on a beta3 base although they should work…

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