IDA Pro deep analysis

When it applies

You have an in-scope binary (confirmed in scope.txt, a client-owned thick client/service, or a sample you own — see tradecraft-scope-roe) and cheap triage (reverse-eng-binary-triage) has surfaced functions worth real decompilation: auth/license logic, custom crypto or protocol parsers, a suspected vulnerable sink, or a malware sample whose capabilities you must map. Use reverse-eng-radare2 for fast CLI recon first; use reverse-eng-ghidra when there's no IDA license.

Why it works

Hex-Rays recovers near-source pseudocode, and IDA's cross-reference database ties every string, import, and data item to the code that touches it — so you navigate by who uses this instead of reading linearly. Renaming and retyping as you go compounds: each good name makes the next function cheaper to read.