zeek-long-connections

Long Connections Zeek normally logs connections at the end of the connection, but this can cause trouble for incident responders in the case of very long lived connections that end up being unknown to defenders until too late. This package provides a new log named connlong which will log...

zerologon

Zerologon Summary A Zeek detection package for CVE-2020-1472, also known as Zerologon, which is a CVSS 10.0 privilege escalation vulnerability against the Netlogon protocol for Windows Server domain controllers. Notices By default, both notices are raised: ZerologonAttempt indicates the requisite...

phantom-playbooks

This is the Corelight Repository for Community Playbooks developed for Splunk Phantom. These provide some examples for you to craft your own playbooks. Corelight Investigate DNS Alert This playbook takes a saved search or alert mechanism for DNS from Splunk and pulls the Zeek UID for the alerts. ...

zeek-quic

Google QUIC analyzer/detector for Zeek This analyzer can parse and detect the Google implementation of QUIC called GQUIC here for simplicity, using the wire format described at: https://www.chromium.org/quic. The version of GQUIC used by Chrome at the time of writing this analyzer was Q039 with...

CVE-2021-31166

CVE-2021-31166 Detection of attempts to exploit CVE-2021-31166 HTTP Protocol Stack vulnerability Suricata rule Zeek Package References https://corelight.blog/2021/05/27/detecting-cve-2021-31166-http-vulnerability/ https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31166...

cve-2020-0601

Zeek test script for CVE-2020-0601 This script can detect exploit attempts for CVE-2020-0601. It performs a simple check to see if a known curve is used in a certificate - if this is not the case a notice is raised. Example notice in notice.log: 1579043477.791522 CHhAvVGS1DHFjwGM9 192.241.209.49...

CVE-2022-24491

CVE-2022-24491 A Zeek detector for CVE-2022-24491: https://vulners.com/cve/CVE-2022-24491 This detector will generate a notice if it sees a portmap set and dump, an action performed when exploiting CVE-2022-24491. Example: separator \x09 setseparator , emptyfield empty unsetfield - path notice op...

Zeek-Intelligence-Feeds

Zeek Intel Threat Feed w/ Combined Indicators This is a public feed based on Public Threat Feeds and CRITICAL PATH SECURITY gathered data. This feed will be updated as often as possible. Getting Started These instructions will get you a copy of the project up and running. Dependencies ZEEK 3.0 or...

ripple20

"Ripple20" Treck IOT/ICS device discovery and exploit detection v0.2 Summary: A Zeek package for the passive detection of Treck devices, discovery/scanning attempts and exploitation of the "Ripple20" set of vulnerabilities in the Treck TCP/IP stack. References:...

Malcolm

Malcolm Malcolm is a powerful network traffic analysis tool suite designed with the following goals in mind: Easy to use – Malcolm accepts network traffic data in the form of full packet capture PCAP files, Zeek logs, and Suricata alerts. These artifacts can be uploaded via a simple browser-based...

go-zeek-broker-ws

Zeek Broker websocket interface library for Golang This library implements the Zeek Broker websocket interface. Helper functions are provided with reasonable mappings between Zeek and Go types. Usage The library contains two packages: encoding encoding models the recursive JSON-based data structu...

detect-ransomware-filenames

Detect Ransomware Filenames This package/script watches SMB transactions to look for known bad filenames that ransomware is known to use. It rides on top of the Anti-Ransomware File System Resource Manager Lists maintained here. How to use A Python script download-list.py is included to be able t...

Malcolm

Malcolm Malcolm is a powerful network traffic analysis tool suite designed with the following goals in mind: Easy to use – Malcolm accepts network traffic data in the form of full packet capture PCAP files, Zeek logs, and Suricata alerts. These artifacts can be uploaded via a simple browser-based...

CVE-2022-26937

CVE-2022-26937 A package to detect CVE-2022-26937, a vulnerability in Microsoft's NFS implementation. Example You can run this logic on the included PCAP in the testing\traces directory: $ zeek -Cr CVE-2022-26937-exploited.pcap /Source/CVE-2022-26937/scripts/load.zeek $ cat notice.log separator...

cve-2020-13777

Zeek test script for CVE-2020-13777 This script performs a simple test to check if a server is potentially vulnerable to CVE-2020-13777. CVE-2020-13777 causes GnuTLS to create unencrypted session tickets. This seems to be detectable by checking gnutls sets the keyname to zero - for which it uses...

zeek-openvpn

zeek::openvpn THIS IS DEPRECATED IN FAVOR OF https://github.com/corelight/zeek-spicy-openvpn A plugin to detect and parse OpenVPN in the following modes: UDP w/ TLS UDP w/ TLS & TLS Auth TCP w/ TLS TCP w/ TLS & TLS Auth So far this will not detect shared key mode for UDP or TCP. If this protocol...

zeek-spicy-wireguard

zeek-spicy-wireguard This package provides a Spicy based Wireguard protocol analyzer for Zeek. You must install Spicy to use this package. This is a straightforward implementation following https://www.wireguard.com/protocol/ Wireguard Wireguard Logs separator \x09 setseparator , emptyfield empty...

zeek-plugin-roca

Johanna::ROCA This plugin implements detection of CVE-2017-15361 keys; it is a reimplementation of the source available at https://github.com/crocs-muni/roca. This plugin provides two new BIFs that can check public keys: rocavulnerablecert checks if a certificate is vulnerable rocavulnerablemod...

threat-hunting-guide

Corelight Threat Hunting Guide working copy This repository serves as the working data for the Corelight Threat Hunting Guide. The source prose which is maintained here is periodically put through editing, layout, and graphic design, and then published as a PDF file and distributed by Corelight,...

Dashboards-Splunk-DNS-Hunting-Beaconing

DNS Hunting-Beaconing v19.2.0.0 DNS Dashboard for hunting and identifying beaconing This dashboard no longer uses any third-party modules or a Splunk lookup table to identify "Trusted Domains". All of that work has been moved to the Corelight/Zeek sensor. However, the dashboard does use two Splun...