Individual skill

detecting-process-hollowing-technique

Detect process hollowing (MITRE T1055.012) by analyzing memory-mapped sections, hollowed process indicators, and parent-child anomalies using EDR telemetry, Volatility's malfind plugin, pe-sieve, Hollows Hunter, and Sysmon Event ID 25. Use when investigating a legitimate-looking process (svchost.exe, explorer.exe, rundll32.exe) suspected of hosting injected code via NtUnmapViewOfSection.

skills/detecting-process-hollowing-technique/SKILL.md

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Last checked
Nov 9, 2026

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Aug 31, 2026
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Apache-2.0

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# Detecting Process Hollowing Technique

## When to Use

- When investigating suspected fileless malware or in-memory threats
- After EDR alerts on process injection or suspicious memory operations
- When hunting for defense evasion techniques in a compromised environment
- When threat intel reports indicate process hollowing in active campaigns
- During purple team exercises validating T1055.012 detection coverage

## Prerequisites

- EDR with memory protection monitoring (CrowdStrike, MDE, SentinelOne)
- Sysmon with Event IDs 1 (Process Create), 8 (CreateRemoteThread), 25 (ProcessTampering)
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