Intrusion Detection Systems

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Tracing The Source Of IDS/IPS Alerts

This may be more of a routing question than a security one but I am asking for the reason of security. I monitor an IPS on a remote network and there have been high alerts triggered recently that ...
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2answers
1k views

What IDS Do you recommend? [closed]

I am running a Debian Squeeze VPS and need a good IDS. I have used snort before and it was quite good but i am wandering if there are any other good ones out there. Preferably compatible with ...
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3answers
269 views

Is there an IDS based on process patterns?

After reading what Metasploit is able to do my grey hairs got even more. From my understanding current attack methods are being done without tampering with any file in a filesystem - thus rendering ...
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3answers
220 views

will all instrusion dectection will become host-based? [closed]

Will all intrusion detection become host-based once all network packets have been encrypted?
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1answer
351 views

tripwire report - inode number

I am investigating Tripwire and have stumbled upon something about which I am unsure. In a tripwire report generated after I modified hosts.deny to include an extra #, I noticed the inode number ...
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3answers
436 views

Popularity of Anomaly based IDSes

I've been reading quite some time about anomaly/behavior based IDSes for Web servers. I understand the downsides: possible high false positives, learning phase, constant training. My question is how ...
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1answer
612 views

SSL protocol issues on OS X and iOS

I have a PfSense box as a UTM, running snort among other things. I started noticing that when MacBooks and iPhones/iPods connect to my network, the snort log gets flooded with this message: ...
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2answers
963 views

Is traffic sent by Mouse Without Borders encrypted?

Some of our users have installed Mouse Without Borders and I wanted to know if it is possible to intercept the traffic being sent between the two computers and read it in some meaningful manner. I was ...
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1answer
348 views

Stateful Signatures in an IPS

I am researching IPS devices and their signatures both stateful and stateless. The test network I am looking to implement the IPS in has asymmetric traffic so stateful inspection would be nearly ...
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1answer
115 views

Is there a Snort rule that equates to “something suspicious flagged from a client side application?”

The reasoning is what if an enterprise monitors snort alerts more-so than say syslog. Is there a specific pre-defined alert for 'client side app says something fishy is going on'?
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2answers
9k views

Detecting the presence of wifi devices

Is it possible, with a normal wifi adapter, to detect present wifi devices in the surrounding? Let's say, is it possible to detect an Iphone with wifi switched on in the range of my wifi adapter? ...
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2answers
1k views

How effective is an IDS at catching targeted attacks

I have recently become very familiar with IBM Site Protector. As I understand things, Site Protector is in the top tier of IPS/IDS systems, used by some of the largest Fortune 500 companies. I was ...
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1answer
256 views

Can HIPS software practically be considered a form of MAC

Host Intrusion Prevention Software can restrict applications from taking certain actions regardless if they have the privileged to do so as assigned by the operating system. Given that with the use ...
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374 views

Rules for log analysis in an IDS

I am working on an IDS which has brought into the view of log analysis basically. I have to detect an intruder if there are any user behaviour anomalies present in the logs. I am having problems ...
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1answer
535 views

types of intrusions on host [closed]

I am implementing an IDS and just want to know that what are the possibilities with which the intrusion can occur.I am just doing a literature survey over the atacks possible so I want to know that ...
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9answers
19k views

Tracking down a rogue access point

Over the course of about a month we have received multiple reports of a rogue access point attempting to intercept traffic. I suspect an attacker is using a wifi pineapple, or similar hardware ...
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3answers
364 views

Implementation of an IDS

I am starting my final year project and I have decided to make an Intrusion Detection System, but I am a little confused where to start. I have read some papers and those have been pointing out the ...
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2answers
779 views

How can an IPS\IDS detect SQLi \ XSS (or other application layer) attacks?

I've been thinking about how an IPS works, and as far as I know it inspects the packets on the TCP\IP layer. How can it detect attacks on higher levels without harming the user experience? How does ...
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1answer
1k views

Blacklist IP addresses based on number of 404s in Apache

I'm getting a lot of hackers spamming my domain with requests for files that just don't exist. This is eating up a lot of my allotted bandwidth and I'd like to blacklist these IP addresses. Is there ...
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1answer
498 views

Logging True/False Negatives on Snort

I'm using Snort in a lab environmnet with artificially generated traffic. I'm looking to build a confusion matrix from known generated attacks. True Positives and False Positives are easy to parse ...
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2answers
459 views

Detecting website attack attempts

I am currently trying to implement some recommendations from OWASP AppSensor Project and I'd like to respond to attacker, when he tries to break into my website. Is there any resource ...
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4answers
636 views

Is Stonesoft's “advanced evasion technique” a major problem?

A month ago, Stonesoft (an IDS constructor from Finland) has launched an alert about Advanced Evasion Techniques. With these techniques, they claim to be capable of launching attacks on a network ...
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1answer
198 views

OSSEC New Install: Scan and analyse full log?

When OSSEC is installed and started, it starts analyzing configured logs starting the date it was installed. Is there a way to have it scan and analyze the full logs?
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1answer
2k views

Power friendly home router, firewall, IDS/IPS setup?

For those that like to manage their own firewall and run IDS/IPS on their home networks, I'm curious - what are you using and is it power friendly? I used to have a shelf full systems doing various ...
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How do we protect our server from anonymous hacker? [duplicate]

Possible Duplicates: Hardening Linux Server How to best defend against Targeted Attacks? I read this news: Anonymous hacker group hits Apple, publishes data My question: How do we ...
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6answers
1k views

Applications of probability/statistics in IT security?

What are some areas of computer security that utilizes statistical modeling? I ask b/c I'm a studying statistics at school and have become interested after reading a few papers.. some of the areas ...
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2answers
499 views

Has anyone else seen commands embedded in an ICMP echo request?

My IPS recently detected a type 8 ICMP packet (echo request) with an unusual payload. The echo request command a fragment of a command that looked like part of a route add. Here's a PCAP of the ICMP ...
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1answer
308 views

Attacks against HIDS software running on the same machine

I am interested in the attacks that could be used to compromise or disable HIDS software such as Tripwire or Samhain. I understand that ideally checks should be run periodically and the database ...
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3answers
767 views

Best practice for creating an initial IPS policy

I see that most IPS available in the market comes with a basic pre-defined policy which administrators can base on when creating their initial IPS policy. However, these policy may be insufficient and ...
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3answers
383 views

Information gathering before deploying a Network IPS

I understand that most NIPS these days have either rules or signatures built in to them and perhaps gathering information prior to deployment may help in fine-tuning the rules / signature once the IPS ...
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3answers
467 views

How can an IPS be fingerprinted?

I'm not trying to solve a current technical problem but I came across this and have been wondering how it's done. Intrusion Prevention Systems are supposed to let all network traffic pass through and ...
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3answers
450 views

Do any of you who are *really* dealing with APT have any recommended intelligence feeds for SIEM/IDS/etc?

This question about Advanced Persistent Threats (APT) was posted by Rich Mogull on twitter. I copied it here because I'm curious too. Rich posted these follow-up tweets: And by APT I mean real ...
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3answers
996 views

What techniques and tools do you use to relate security events?

You have central logging going, detailed app logging/alerting (e.g. modsec), network based security alerting (e.g. snort), and whatever else feeding your observation deck. Do you have any cool ...
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1answer
243 views

Checkpoint NGX IPS & NAT

how does CheckPoint R65/R70 handle IPS violations of outbound traffic from hosts that are NAT'ed? Is it necessary to include the NAT'ed IP in the exceptions list or is it sufficient to include the ...
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1answer
717 views

Intrusion Prevention Logs

I received an email from a client with IDS logs. I was wondering if the following log has any real indications of the server being compromised. If there are certain things I can do to diagnose the ...
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800 views

Tools to identify and report hacking attempts originating inside reputable organizations?

Re: Should I report hacking attempts? - Server Fault Lots of people look at their own logs for attacks from the outside. But who regularly reports such attacks back to the source? I'm mainly ...
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3answers
534 views

What FOSS software do you like to use to build intrusion detection stacks?

Start-ups and organizations with limited budgets that are security conscious are often encouraged to deploy intrusion detection stacks. Given that prevention will always fail, intrusion detection ...
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1answer
168 views

What is your experience with AlertLogic?

Do you have any insight, or experience (good or bad) regarding AlertLogic? In what areas can they improve, what areas are they lagging in?
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3answers
830 views

How do I identify an unknown port/protocol that my IDS picks up?

Googling a port and protocol leads to a terse description at best, and a linkfarm in the average case. Most protocols on assorted, unknown high ports contain little or no plaintext, and often if the ...
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2answers
143 views

Managing a team of IDS experts; how would you orgainze your team?

Suppose you are managing a team of Intrusion Detection Experts: ...what are the functional areas of the IDS knowledge space would you group your team into? ...how would you structure your team? ...