Snort

Analyzing Bluetooth Low Energy Traffic

由 假装没事ソ 提交于 2019-12-20 15:01:09
问题 While trying to study BLE I am wondering if it is possible to analyse it through tools like Wireshark and snort? I came across one by the name "ubertooth" but that's a USB device which needs to be purchased in order for us to do DPI on BLE frames, right? Is it possible to capture and analyse BLE frames on Wireshark? 回答1: Yes it's possible to use wireshark to analyse BLE packets, but you will need additional hardware. Sniffing a connection requires support from the baseband layer which is

install barnyard2 ubuntu 12.04

由 折月煮酒 提交于 2019-12-12 02:45:03
问题 I trying to install barnyard2 in ubuntu 12.04 32-bit I'm configure using syntax: ./configure --with-mysql-libraries=/usr/lib/x86_64-linux-gnu and when I trying to compile daq-1.1.1 using a makefile, I encountered the following errors: make[3]: Leaving directory /root/snortinstall/barnyard2/src' make[2]: Leaving directory /root/snortinstall/barnyard2/src' Making all in etc make[2]: Entering directory /root/snortinstall/barnyard2/etc' make[2]: Nothing to be done for all'. make[2]: Leaving

how can i generate immediate pop-up when a traffic matched with a snort rule

由 房东的猫 提交于 2019-12-12 01:46:29
问题 i am using snort on my desktop and i want to see a pop-up window when a rule is triggered. I wrote my own rules in local.rules. I dont use any e-mail system so please ignore the mail option. logs are in the /var/log/snort/alerts file. is there any way to succeed this. when an alert is written the this file i want to see a graphical warn.i tried to write a bash script that checks the alerts file and when the hash is changed, pop-up last 10 lines with notify-send but i couldn't achive that..

Snort Rule - HTTP Body Content

由 穿精又带淫゛_ 提交于 2019-12-11 18:06:41
问题 I am trying to create a simple rule to alert when "MZ" are the first two characters in the HTTP body. My current rule is: alert tcp any any -> any any (msg:"Test"; content:"MZ"; depth: 2; http_client_body; sid:51; rev:1;) But this finds no results despite "MZ" definitely being present in the HTTP body. Assistance much appreciated. 回答1: After seeking assistance from a few other sources, it turns out I was asking snort to look in the wrong place: The correct rule is below: alert tcp any any ->

How to create a snort content rule

由 泪湿孤枕 提交于 2019-12-11 15:53:54
问题 I am new into using snort and I don't know how to properly create rules. I want someone to explain me how to create a rule for detection of a specific content. For example: I want to generate an alert when I search on Google the word 'terrorism'. I tried to create the rule with what I've seen on Youtube or Google, as examples, but none of them works and I don't know what to try anymore. For instance, I am using Snort 2.9.9 alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"terrorism content

Why are my Snort logs empty?

由 梦想的初衷 提交于 2019-12-11 05:15:53
问题 I am running macOS Sierra 10.12.3 $ sw_vers ProductName: Mac OS X ProductVersion: 10.12.3 BuildVersion: 16D32 I have installed snort using homebrew $ brew install snort $ brew ls --versions snort snort 2.9.9.0 I am running snort and with a user config file, -s syslog switch, and a tcpdump-file $ sudo snort -c /etc/snort/snort.conf -s -r tcpdump.pcap my /etc/snort/snort.conf file has the following output settings: output alert_syslog: LOG_AUTH LOG_ALERT When I execute,a blank file gets created

Snort dynamic engine issues on Windows

由 匆匆过客 提交于 2019-12-11 04:35:51
问题 I can't seem to find the answer to this issue. A lot of topics exist for similar errors but they are all Linux based. The issue I'm having is that when attempting to run Snort (snort.exe -v -I), it will capture nothing but I assume this is because I have not set an interface. After running snort.exe -W , I found the interface to use and specified this in the command line but I get the following error - ERROR: Can't set DAQ BPF filter to '2' . I skipped past this error briefly to try and test

Rule for capturing SYN-scanning

由 。_饼干妹妹 提交于 2019-12-11 00:12:39
问题 I need to write a rule that captures the SYN-scanning. I tried this: alert tcp any any -> any any (flags:S,12; msg:"SYN"; sid: 1231213;) then try to scan: nmap -sS myIP but this does not output "SYN" How to write a correct rule? Thanks. 回答1: Try to change flags:S,12 to flags:S as the Snort manual states: The reserved bits '1' and '2' have been replaced with 'C' and 'E', respectively, to match RFC 3168, "The Addition of Explicit Congestion Notification (ECN) to IP". The old values of '1' and

Snort的安装，配置，测试

由 ≡放荡痞女 提交于 2019-12-10 22:10:55
在学习snort的时候，参考了很多文章，遇到了许多坑。这里是完成搭建的过程。 在Ubuntu 16.04下安装snort 安装snort 首先，新建一个文件夹来保存需要的tar包的文件夹 #mkdir ~/snort_src #cd ~/snort_src 安装必备的组件 #sudo apt-get install -y build-essential libpcap-dev libpcre3-dev libdumbnet-dev bison flex zlib1g-dev liblzma-dev openssl libssl-dev build-essential：提供用于编译软件的构建工具（GCC等）。 bison，flex：DAQ所需的解析器（DAQ将在下面安装）。 libpcap-dev：Snort所需的网络流量捕获库。 libpcre3-dev：支持Snort所需正则表达式的函数库。 libdumbnet-dev：libdnet库为几个低层网络例程提供了一个简化的可移植接口。许多安装Snort的指南都是从源代码安装此库的，尽管这不是必需的。 zlib1g-dev：Snort所需的压缩库。 liblzma-dev：提供对swf文件的解压缩（adobe flash） openssl和libssl-dev：提供SHA和MD5文件签名 Snort所需的最后一个库是 Nghttp2

snort 中的Boyer-Moore

由 [亡魂溺海] 提交于 2019-12-09 23:24:17
声明 ‍ snort中的字串查找，以下代码出自snort-2.9.6.0。是snort中用于字串匹配的底层接口。 主要是参考了Boyer-Moore算法进行实现的. 关于 Boyer-Moore 的文章可以参考 : http://my.oschina.net/u/572632/blog/283380 本文主要是对该部分代码做一分析总结。 ‍ 代码 /* * bmh.h * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License Version 2 as * published by the Free Software Foundation. You may not use, modify or * distribute this program under any other version of the GNU General * Public License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the
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