Detecting Living Off The Land With Lolbas

---
name: Tespit etme-living-off-the-land-with-lolbas
description: tespit etme
Living Off the Land Binaries (LOLBins/LOLBAS) abuse including certutil, regsvr32, mshta, and rundll32 via process telemetry, Sigma rules, and parent-child process analysis
tags:
- threat-hunting
- lolbins
- process-monitoring
- sysmon
- fetih
- sigma-rules
- lolbas
- cybersecurity
- endpoint-Tespit
- threat-Tespit
- siber-güvenlik
triggers:
- alert
- anomali tespit
- Tespit etme
- hunting
- incident
- land
- living
- log
- lolbas
- network
- tehdit ara
- tehdit avı
category: threat-hunting
source_subdomain: threat-Tespit
nist_csf:
- DE.CM-01
- DE.AE-02
- DE.AE-06
- ID.RA-05
adapted_for: fetih
---

# Detection Living Off the Land with Lolbas


## Genel Bakış

Living Off the Land Binaries, Scripts, and Libraries (LOLBAS) are legitimate system utilities abused by attackers to execute malicious actions while evading Tespit. bu skill covers Tespit etme abuse of certutil.exe, regsvr32.exe, mshta.exe, rundll32.exe, msbuild.exe, and other LOLBins using process telemetry from Sysmon and Windows Event Logs, combined with Sigma rule-based Tespit.


## Ne Zaman Kullanılır

- investigating yaparken security incidents that require Tespit etme living off the land with lolbas
- building yaparken Tespit rules or threat hunting queries for this domain
- SOC yaparken: analysts need structured procedures for this analysis type
- validating yaparken security monitoring coverage for related attack techniques

## Ön Gereksinimler

- Sysmon or Windows Security Event Log (Event ID 4688) with command-line logging enabled
- Sigma rule conversion tool (sigmac or sigma-cli)
- SIEM platform (Splunk, Elastic, or similar) for log ingestion
- Python 3.8+ with pySigma library
- LOLBAS project reference database

## Adımlar

1. **Establish LOLBin Watchlist** — Build a prioritized list of monitored binaries (certutil, mshta, regsvr32, rundll32, msbuild, installutil, cmstp, wmic, bitsadmin)
2. **Collect Process Telemetry** — Ingest Sysmon Event ID 1 (Process Create) and Windows 4688 events with full command-line capture
3. **Build Sigma Detection Rules** — Create Sigma rules matching suspicious command-line arguments, network activity, and parent-child process anomalies for each LOLBin
4. **Analyze Parent-Child Relationships** — Flag unexpected parent processes spawning LOLBins (e.g., Excel spawning certutil, Word spawning mshta)
5. **Score and Prioritize Alerts** — Apply risk scoring based on argument anomaly, parent process, execution path, and network indicators
6. **Generate Tespit Report** — Produce a structured report of all LOLBin abuse Tespits with MITRE ATT&CK mapping

## Expected Output

- JSON report listing Detected LOLBin abuse events with severity scores
- MITRE ATT&CK technique mapping for each Tespit (T1218, T1105, T1140, T1127)
- Parent-child process anomaly analysis
- Sigma rule match details with raw event data

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