Generating Text-Based Log Analysis
Problem
You want to view alert statistics quickly and efficiently.
Solution
Use Cerebus, a text-based alert browser and analyzer. Installing Cerebus is easy: just download the executable file and run it! No installation is necessary. At the time of this writing, the latest standalone version of Cerebus is 1.4. To execute Cerebus on Windows, just double-click the cerebus-win32-v1-4.exe file. This will open the GUI viewer. You may be asked for the location of the sid-msg.map file, which is located in the C:Snortetc directory by default. Once the GUI is open, you must choose FileOpen/Merge Alert Files to locate and open your unified output log. You will then be able to view, browse, sort, and manipulate alerts (Figure 6-6).
Figure 6-6. Cerebus for Windows
To install Cerebus on Unix, you will need to change permissions on the downloaded file to make it executable:
[root@localhost root]# chmod u+x cerebus-linux-v1.4
To run Cerebus on Unix, you must use the following command-line syntax to specify the location of the alert file and the sid-msg.map file:
[root@localhost root]# ./cerebus-linux-v1.4 /var/log/snort/snort.alert.1092356570 ./etc/sid-msg.map
You will then be able to view, browse, sort, and manipulate alerts in a Unix text window (Figure 6-7).
Figure 6-7. Cerebus for Unix
Discussion
Cerebus is a text-based alert file browser and data correlator for Snort alerts in the unified output format. It runs on Windows, Linux, and OpenBSD. Cerebus is a standalone program with an embedded database for loading multiple Snort alert files and making real-time queries. It also allows you to quickly remove unwanted alerts for easy browsing. It was developed to efficiently process large amounts of IDS data.
The latest version of Cerebus at the time of this writing is the Win32 V1.4L Beta, which is a bundled installer that includes Cerebus 1.4L, Snort Win32 CVS 1.9 beta, and WinPcap 3.0 beta. It works on Windows 2000 and XP. This creates the Cerebus executable and also installs Snort and Winpcap. It creates executables with the appropriate parameters to run Snort in sniffer mode or IDS mode.
See Also
http://dragos.com/cerebus/
Creating HTML Log Analysis Output |
Installing Snort from Source on Unix
- Installing Snort from Source on Unix
- Installing Snort Binaries on Linux
- Installing Snort on Solaris
- Installing Snort on Windows
- Uninstalling Snort from Windows
- Installing Snort on Mac OS X
- Uninstalling Snort from Linux
- Upgrading Snort on Linux
- Monitoring Multiple Network Interfaces
- Invisibly Tapping a Hub
- Invisibly Sniffing Between Two Network Points
- Invisibly Sniffing 100 MB Ethernet
- Sniffing Gigabit Ethernet
- Tapping a Wireless Network
- Positioning Your IDS Sensors
- Capturing and Viewing Packets
- Logging Packets That Snort Captures
- Running Snort to Detect Intrusions
- Reading a Saved Capture File
- Running Snort as a Linux Daemon
- Running Snort as a Windows Service
- Capturing Without Putting the Interface into Promiscuous Mode
- Reloading Snort Settings
- Debugging Snort Rules
- Building a Distributed IDS (Plain Text)
- Building a Distributed IDS (Encrypted)
Logging to a File Quickly
- Logging to a File Quickly
- Logging Only Alerts
- Logging to a CSV File
- Logging to a Specific File
- Logging to Multiple Locations
- Logging in Binary
- Viewing Traffic While Logging
- Logging Application Data
- Logging to the Windows Event Viewer
- Logging Alerts to a Database
- Installing and Configuring MySQL
- Configuring MySQL for Snort
- Using PostgreSQL with Snort and ACID
- Logging in PCAP Format (TCPDump)
- Logging to Email
- Logging to a Pager or Cell Phone
- Optimizing Logging
- Reading Unified Logged Data
- Generating Real-Time Alerts
- Ignoring Some Alerts
- Logging to System Logfiles
- Fast Logging
- Logging to a Unix Socket
- Not Logging
- Prioritizing Alerts
- Capturing Traffic from a Specific TCP Session
- Killing a Specific Session
How to Build Rules
- How to Build Rules
- Keeping the Rules Up to Date
- Basic Rules You Shouldnt Leave Home Without
- Dynamic Rules
- Detecting Binary Content
- Detecting Malware
- Detecting Viruses
- Detecting IM
- Detecting P2P
- Detecting IDS Evasion
- Countermeasures from Rules
- Testing Rules
- Optimizing Rules
- Blocking Attacks in Real Time
- Suppressing Rules
- Thresholding Alerts
- Excluding from Logging
- Carrying Out Statistical Analysis
Detecting Stateless Attacks and Stream Reassembly
- Detecting Stateless Attacks and Stream Reassembly
- Detecting Fragmentation Attacks and Fragment Reassembly with Frag2
- Detecting and Normalizing HTTP Traffic
- Decoding Application Traffic
- Detecting Port Scans and Talkative Hosts
- Getting Performance Metrics
- Experimental Preprocessors
- Writing Your Own Preprocessor
Managing Snort Sensors
- Managing Snort Sensors
- Installing and Configuring IDScenter
- Installing and Configuring SnortCenter
- Installing and Configuring Snortsnarf
- Running Snortsnarf Automatically
- Installing and Configuring ACID
- Securing ACID
- Installing and Configuring Swatch
- Installing and Configuring Barnyard
- Administering Snort with IDS Policy Manager
- Integrating Snort with Webmin
- Administering Snort with HenWen
- Newbies Playing with Snort Using EagleX
Generating Statistical Output from Snort Logs
- Generating Statistical Output from Snort Logs
- Generating Statistical Output from Snort Databases
- Performing Real-Time Data Analysis
- Generating Text-Based Log Analysis
- Creating HTML Log Analysis Output
- Tools for Testing Signatures
- Analyzing and Graphing Logs
- Analyzing Sniffed (Pcap) Traffic
- Writing Output Plug-ins
Monitoring Network Performance
- Monitoring Network Performance
- Logging Application Traffic
- Recognizing HTTP Traffic on Unusual Ports
- Creating a Reactive IDS
- Monitoring a Network Using Policy-Based IDS
- Port Knocking
- Obfuscating IP Addresses
- Passive OS Fingerprinting
- Working with Honeypots and Honeynets
- Performing Forensics Using Snort
- Snort and Investigations
- Snort as Legal Evidence in the U.S.
- Snort as Evidence in the U.K.
- Snort as a Virus Detection Tool
- Staying Legal
Index
EAN: 2147483647
Pages: 167
