analyzing-memory-forensics-with-lime-and-volatility

name	analyzing-memory-forensics-with-lime-and-volatility
description	Performs Linux memory acquisition using LiME (Linux Memory Extractor) kernel module and analysis with Volatility 3 framework. Extracts process lists, network connections, bash history, loaded kernel modules, and injected code from Linux memory images. Use when performing incident response on compromised Linux systems.
domain	cybersecurity
subdomain	security-operations
tags	["memory-forensics","linux-forensics","lime","volatility","incident-response","kernel-modules"]
version	1.0
author	mahipal
license	Apache-2.0
nist_csf	["DE.CM-01","RS.MA-01","GV.OV-01","DE.AE-02"]

Analyzing Memory Forensics with LiME and Volatility

When to Use

• When investigating security incidents that require analyzing memory forensics with lime and volatility
• When building detection rules or threat hunting queries for this domain
• When SOC analysts need structured procedures for this analysis type
• When validating security monitoring coverage for related attack techniques

Detection Gaps & Validation

• Acquisition smear is the #1 false negative: LiME captures memory live, so page tables and process lists shift mid-dump on a busy host. A torn capture makes linux.pslist walk a broken task_struct list and silently drop processes. Prefer format=lime (timestamped, structured) over format=raw, capture with the box as quiet as possible, and hash the image immediately.
• Profile/symbol mismatch yields empty output: Volatility 3 needs an ISF symbol table matching the exact kernel (uname -r + build). A wrong banner makes every Linux plugin return nothing — that is a tooling failure, not a clean host. Verify with vol3 -f mem.lime banners.Banners before concluding negative.
• pslist vs psscan: rootkits unlink task_struct from the active list. Always diff linux.pslist against linux.psscan (pool/scan-based) — a process in psscan but not pslist is a hidden-process indicator.
• LKM rootkits hook syscalls: linux.lsmod only shows registered modules; a module that unregisters itself won't appear. Corroborate with linux.check_syscall/linux.check_afinfo for hooked syscall and netfilter pointers, and linux.malfind for injected/anonymous executable VMAs.
• Validate the workflow fires: run a benign test (e.g., a nc listener + a deleted-but-running binary) on the lab host, capture, and confirm linux.sockstat shows the socket and linux.bash recovers the command history before trusting results on evidence.

Prerequisites

• Familiarity with security operations concepts and tools
• Access to a test or lab environment for safe execution
• Python 3.8+ with required dependencies installed
• Appropriate authorization for any testing activities

Instructions