The Power of Logging in Incident Response
A deep dive into logging as an often-overlooked but powerful tool for incident detection and response “Lack of instrumentation or insufficient logging” is often a phrase used on incident response...
Using a “Playbook” Model to Organize Your Information Security Monitoring Strategy
CSIRT, I have a project for you. We have a big network and we’re definitely getting hacked constantly. Your group needs to develop and implement security monitoring to get our malware and hacking problem under control. If you’ve been a security engineer for more than a few years, no doubt you’ve received a directive […]
To SIEM or Not to SIEM? Part I
Security information and event management systems (SIEM, or sometimes SEIM) are intended to be the glue between an organization's various security tools. Security and other event log sources export their...
Getting a Handle on Your Data
When your incident response team gets access to a new log data source, chances are that the events may not only contain an entirely different type of data, but may also be formatted differently than any log data source you already have. Having a data collection and organization standard will ease management and analysis of […]
Big Security—Mining Mountains of Log Data to Find Bad Stuff
Your network, servers, and a horde of laptops have been hacked. You might suspect it, or you might think it’s not possible, but it’s happened already. What’s your next move? The dilemma of the “next move” is that you can only discover an attack either as it’s happening, or after it’s already happened. In most […]
Security Logging in an Enterprise, Part 2 of 2
We first logged IDS, some syslog from some UNIX hosts, and firewall logs (circa 1999). We went from there to dropping firewall logging as it introduced some overhead and we didn’t have any really good uses for it. (We still don’t.) Where did we go next?
Security Logging in an Enterprise, Part 1 of 2
Logging is probably both one of the most useful and least used of all security forensic capabilities. In large enterprises many security teams rely on their IT counterparts to do the logging and then turn to the IT logging infra when they need log information. That in itself isn’t bad; however, the needs/requirements for IT may not be a 100% fit for a CIRT. Read on to find out how we handled it.