K8S - EDR-T6464 - Tomcat Tribes CVE-2026-34486

K8S - EDR-T6464 - Tomcat Tribes CVE-2026-34486

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Linux Attack, Detection and Forensics v2.1 - Hands-on Purple Teaming Playbook

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Introduction

  • Welcome to the v2.1 party!
  • Goals / What to expect
  • Active Defense, PT, DE & Assume Breach
  • Linux DFIR Introduction
  • PurpleLabs Dashboard
  • General Course Flow Design
  • Private Virtual Machines
  • Shared Virtual Machines
  • PurpleLabs VM Robot Tool
  • PurpleLabs Network Diagram
  • EDRmetry Matrix
  • AI Integration
  • Why Linux as a target?
  • Linux Threat Landscape
  • Open Source Community
  • Recommended books
  • [ Changelog / Updates ]

Golden Rules - Before You Start Hands-on

  • Explore widely, think broadly
  • Enable Runtime Security/DFIR Agents
  • SOCKS Proxy or SSH Tunneling is required
  • KALI_X or C2_X?
  • TARGET_X - Kernel upgrade/downgrade
  • Multi-tab terminal
  • What is O- ?
  • "Don't" Policies
  • Troubleshooting1

Defensive/DFIR Tooling

  • Host/Exploration of CLI tools
  • Host/Exploration of /proc
  • Host/Exploration of /sys
  • Host/Splunk Forwarder
  • Host/Falco Runtime Security
  • Host/Kunai Runtime Security2
  • Host/Tetragon Runtime Security
  • Host/Tetragon Custom Tracing Policies
  • Custom eBPF C
  • Host/Tracee Runtime Security
  • Host/Jibril Runtime Security [RETIRED]
  • Host/Elastic Security Agent
  • Host/Wazuh Agent
  • Host/Velociraptor Agent
  • Host/FleetDM OSquery Agent
  • Host/Sandfly Security
  • Host/Sysmon4Linux
  • Host/Syslog
  • Host/go-journalctl
  • Host/auditd
  • Host/Linux IR Scripts - SecureProbes
  • Host/UAC
  • Host/Ghostscan
  • Host/Decloaker
  • Host/bpftrace
  • Host/LKRG
  • Host/SELinux
  • Host/Capa
  • Host/Yara / Yara-x Scanning
  • Network/Zeek NIDS
  • Network/Suricata NIDS
  • Network/WAF Modsecurity
  • Memory/RAM acquisition
  • Memory/Volatility3 Framework2
  • Memory/Volatility2 Framework
  • Memory/mquire
  • Commercial Linux EDR/Security Products

Linux EDR Architecture

  • Introduction
  • What is Linux EDR engine?
  • How does Linux EDR work?
  • Core functionalities and key features
  • Visibility Events / Indexes / Data sources
  • Syscalls, Kernel Functions and Tracing
  • Detection logic / rulesets
  • Support for Sigma Rules
  • Engine Modes
  • Dashboards, Analytics & Query language
  • Response, Triage and Forensics
  • Deployment and Operations
  • Alerts / Incidents / Detections
  • Query Language
  • Linux EDR Telemetry Project

Linux MITRE ATT&CK Matrix

  • Introduction

Initial Access - TA0001

  • TA0001 - Introduction
  • EDR-T6261 - Remote UAF Exploitation - user
  • EDR-T6119 - Remote UAF Exploitation - root
  • EDR-T6354 - Remote UAF+Heap Overflow
  • EDR-T6062 - Kafka CVE-2023-25194
  • EDR-T6355 - Langflow API CVE-2025-3248
  • EDR-T6114 - ActiveMQ CVE-2023-46604
  • EDR-T6105 - Apache HTTP CVE-2021-41773
  • O-EDR-T6116 - Tomcat Upload Manager
  • EDR-T6110 - Solr Log4J JNDI CVE-2021-44228
  • EDR-T6233 - XZ Backdoor CVE-2024-3094
  • EDR-T6113 - Spring CVE-2022-22963
  • EDR-T6416 - React2shell - CVE-2025-55182
  • EDR-T6450 - K8S Ingress-NGINX CVE-2025-1974

Execution - TA0002

  • TA0002 - Introduction
  • EDR-T6277 - Built-in System Tools Execution

Persistence - TA0003

  • TA0003 - Introduction
  • EDR-T6395 - LKM LibZeroEvil r00tme
  • EDR-T6394 - LKM Singularity Rootkit
  • EDR-T6100 - LKM Char Device + LPE
  • EDR-T6163 - LKM Reveng Rootkit
  • EDR-T6023 - LKM Diamorphine Rootkit
  • EDR-T6289 - LKM Ftrace Rootkit - Rebellion
  • EDR-T6161 - LKM BDS Ftrace Hooking Rootkit
  • EDR-T6154 - LKM Suterusu Rootkit
  • EDR-T6155 - LKM KoviD Rootkit
  • EDR-T6152 - eBPF Boopkit Rootkit
  • EDR-T6325 - BPFDoor Backdoor
  • EDR-T6454 - eBPF XDP UDP Backdoor
  • EDR-T6151 - eBPF TripleCross Rootkit
  • EDR-T6104 - SSHD Dummy Cipher Suite BYOT
  • EDR-T6235 - LD_PRELOAD Re-adding SSH key
  • O-EDR-T6327 - LD_PRELOAD Father Rootkit1
  • EDR-T6422 - bdvl - Patch Dynamic Linker3
  • EDR-T6423 - SSHD id_ed25519 Key Backdoor
  • EDR-T6170 - Cap_setuid over LD linker
  • EDR-T6139 - Python .pth Extensions
  • O-EDR-T6407 - Shadow SUID binfmt_misc
  • EDR-T6093 - Crontab root Backdoor
  • EDR-T6431 - Supervisor persistence
  • EDR-T6015 - Systemd Backdoor service
  • EDR-T6179 - Udev+atd C2 persistence2
  • O-EDR-T6213 - Malicious RPM package
  • EDR-T6164 - PAM Sneaky Backdoor
  • EDR-T6144 - DNF Package Manager1
  • EDR-T6051 - Modify core_pattern
  • EDR-T6347 - Nginx Shell Module1
  • O-EDR-T6017 - HTTPD mod_backdoor
  • EDR-T6011 - PHP Webshells
  • EDR-T6250 - Backdooring Initramfs [RETIRED]

Privilege Escalation - TA0004

  • TA0004 - Introduction
  • EDR-T6109 - LPE Socket Command Injection
  • EDR-T6360 - UAF Dirty Page Table LPE
  • EDR-T6359 - UAF Cross-cache Dirty Pipe LPE
  • EDR-T6184 - PATH Hijacking
  • O-EDR-T6315 - Add SSH key via iptables-save
  • EDR-T6335 - sudo chroot CVE-2025-32463
  • EDR-T6147 - Docker Escape with socket+Chisel
  • EDR-T6417 - Docker Escape with core_pattern
  • EDR-T6187 - NFS SUID Escalation
  • EDR-T6230 - pkexec CVE-2021-4034
  • EDR-T6231 - DirtyPipe CVE-2022-0847 LPE
  • O-EDR-T6177 - MySQL UDF Command Exec
  • EDR-T6459 - Copy Fail - CVE-2026-31431 LPE
  • EDR-T6462 - Fragnesia LPE
  • EDR-T6463 - pidfd_getfd + ptrace - Read root files
  • O-EDR-T6468 - DirtyClone CVE-2026-43503

Defense Evasion - TA0005

  • TA0005 - Introduction
  • EDR-T6041 - Execute binary listening from a hidden directory
  • EDR-T6039 - File Transfer to a hidden directory
  • EDR-T6138 - Bash HTTP GET data with /dev/tcp
  • EDR-T6173 - Hackshell + OpenSSL download
  • EDR-T6340 - Python HTTP POST and Exec
  • O-EDR-T6363 - Base64 Payload inside ZIP
  • EDR-T6370 - Sneaky_remap + Ptrace() Process Injection in Rust + SSL/TLS callback
  • EDR-T6439 - Malasada .so to Shellcode Loader
  • EDR-T6127 - dd+/proc/PID/mem Injection
  • EDR-T6256 - STOP/CONT Process Injection
  • EDR-T6108 - ASM Injection over /proc/PID/mem
  • EDR-T6037 - Python3 Fileless memfd_create
  • EDR-T6188 - Fileless Execution with memexec
  • EDR-T6171 - Easy Proc Name Masquerading
  • EDR-T6038 - Proc Name Masq with exec
  • EDR-T6140 - Proc Name Masq with prctl()
  • EDR-T6345 - Proc Masq with mount NS
  • EDR-T6046 - LD_PRELOAD Proc Hiding
  • EDR-T6053 - mount --bind process hiding
  • EDR-T6253 - eBPF Process Hider
  • EDR-T6107 - LKM Fileless Remote Loading
  • EDR-T6396 - LKM Hooking init_module
  • EDR-T6293 - LKM Disabling SELinux
  • EDR-T6282 - LKM Reset Yama ptrace_scope
  • EDR-T6167 - BOF Loading with BOF-Stager
  • EDR-T6067 - SSH notty session
  • EDR-T6133 - File immutable with chattr
  • EDR-T6089 - Bashrc File Hiding with ls Alias
  • O-EDR-T6078 - Execute tools via PRoot BYOF
  • EDR-T6455 - Fake TLS ClientHello DPI bypass
  • EDR-T6485 - Falco BPF Map Poisoning

Command and Control - TA0011

  • TA0011 - Introduction
  • EDR-T6123.023 - curlrevshell
  • EDR-T6123.008 - Revshell openssl+/dev/fd/3
  • EDR-T6123.004 - Revshell mkfifo+nc
  • EDR-T6123.022 - Oneshell - echo and chmod
  • EDR-T6123.015 - Revshell Python TLS
  • O-EDR-T6126.002 - Sliver C2 MTLS
  • EDR-T6126.013 - Sliver C2 HTTPS
  • O-EDR-T6126.007 - Sliver C2 DNS
  • O-EDR-T6126.011 - Sliver C2 TCP Pivots
  • EDR-T6212 - Emp3r0r HTTP2 AES Stager C2
  • EDR-T6317 - SOA/ECS DNS C2 Channel
  • EDR-T6448 - ICMP Assembly C2
  • EDR-T6115 - DNS Tunneling with dnscat2
  • O-EDR-T6409 - Venom C2
  • O-EDR-T6126.006 - Platypus C2
  • EDR-T6126.004 - Merlin HTTP2 C2
  • EDR-T6126.010 - Mythic C2 Deployment
  • O-EDR-T6126.003 - Mythic C2 Thanatos ELF
  • O-EDR-T6126.009 - Mythic C2 Medusa Python
  • O-EDR-T6126.005 - Mythic C2 Poseidon ELF
  • O-EDR-T6148 - XOR shell_reverse_tcp Loader
  • EDR-T6117 - UPX Reverse SSH server
  • EDR-T6123.017 - Shell over HTTP streams
  • EDR-T6328 - io_uring Agent

Credential Access - TA0006

  • TA0006 - Introduction
  • EDR-T6242 - eBPF Spy on PAM with python3
  • EDR-T6199 - eBPF pamspy
  • EDR-T6012 - Sniff sshd with strace
  • EDR-T6415 - ptrace() ssh-inject
  • EDR-T6319 - Dump heap memory from Java

Discovery - TA0007

  • TA0007 - Introduction
  • EDR-T6225 - Execute "What Server"
  • EDR-T6040 - Execute LinPEAS from /dev/tcp
  • EDR-T6065 - /proc/PID/ Enumeration
  • EDR-T6251 - Process Snooping with pspy
  • EDR-T6280 - Find loaded eBPF programs/maps
  • EDR-T6218 - Linux VM Check via Hardware
  • EDR-T6204 - Read local file using curl
  • EDR-T6010 - Check my public IP
  • EDR-T6412 - DNS Reconnaissance

Lateral Movement - TA0008

  • TA0008 - Introduction
  • EDR-T6189 - Reverse SOCKS5 proxy
  • EDR-T6357 - Chisel Reverse Socks Proxy
  • EDR-T6255 - KCP - FRP Fast Reverse Proxy
  • EDR-T6033 - SSH Linux Tunneling
  • EDR-T6404 - mTLS Reverse SOCKS5
  • O-EDR-T6387 - SOCKS5 over Tailscale
  • EDR-T6392 - Cloudflared Tunneling
  • EDR-T6131 - Hijacking SSH Client Session
  • O-EDR-T6364 - Hijacking ssh-agent session
  • EDR-T6057 - Execute Port Scanning

Exfiltration - TA0010

  • TA0010 - Introduction
  • EDR-T6120 - Python FTP Upload
  • EDR-T6180 - SMB Data Exfiltration
  • EDR-T6112 - NTP Data Exfiltration
  • EDR-T6137 - HTTP PUT method + transfer.sh
  • EDR-T6181 - Upload/download data over SSHFS
  • O-EDR-T6135 - Upload data over WebDAV
  • EDR-T6234 - pam_exec SSHD Exfiltration
  • EDR-T6445 - PAM XOR VeilCreds
  • O-EDR-T6103 - PAM creds over HTTP Post
  • O-EDR-T6168 - ICMP_exfil + nping
  • EDR-T6418 - LDAP Data Hiding - FreeIPA

Impact - TA0040

  • TA0040 - Introduction
  • O-EDR-T6063 - Ransomware C - lokpack
  • O-EDR-T6252 - Crypto Mining CPU stress
  • O-EDR-T6018 - Ransomware bash+openssl

Automated Attack Emulation Projects

  • PANIX
  • Echos - Network Beacon Emulator
  • MITRE Caldera
  • TTP-Bench
  • Atomic Red Team
  • TTPForge

Attack Flows & Combos

  • Introduction
  • Combo Flows
  • Attack Flow #1
  • Attack Flow #2
  • Attack Flow #3

Linux Hardening

  • Linux Hardening Guide
  • Container Security Hardening

Kubernetes

  • K8S Components
  • K8S Deployment
  • K8S gVisor Deployment
  • Falco Deployment in K8S
  • Tracee Deployment in K8S
  • Kubernetes Threat Matrix
  • Kubectl Fu
  • K8S Simple Pod Deployment
  • K8S Unauthenticated API Access
  • K8S Static Hidden Pod
  • K8S Pod Breakout
  • K8S Mounted secrets
  • K8S Etcd Dump
  • K8S CronJob SSH Persistence
  • K8S Pod Name Similarity
  • K8S Grafana + PostgreSQL RCE
  • K8S Vuln Web App
  • K8S Security Scanners
  • K8S - EDR-T6105 - Apache HTTPD CVE-2021-41773
  • K8S - EDR-T6464 - Tomcat Tribes CVE-2026-34486
  • K8S - EDR-T6062 - Kafka CVE-2023-25194
  • K8S - EDR-T6114 - ActiveMQ CVE-2023-46604
  • K8S - EDR-T6467 - Flask SSTI
  • K8S - EDR-T6355 - Langflow API CVE-2025-3248
  • K8S - EDR-T6416 - React2shell - CVE-2025-55182
  • K8S - EDR-T6113 - Spring CVE-2022-22963
  • K8S - EDR-T6354 - Remote UAF+Heap Overflow

Active Security Research

  • Extra Research
  • Linux Internals
  • LSM Sandboxes / Isolations
  • eBPF
  • eBPF Prevention/Detection
  • Exploitation
  • Kubernetes/Containers
  • Evasion / Bypassing techniques
  • Rootkits
  • Malware
  • OS Security Stacks
  • Memory Forensics
  • Fun
  • Hardening