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theHarvester

OSINT: emails, subdomains and hosts of an organisation from public sources.

Public information gatherer for a domain. It queries search engines, certificate transparency, passive DNS and breach databases to pull emails, employee names, subdomains and IPs without touching the client infrastructure. In a real engagement it is the first step: the emails it returns are the raw material for the user list you later feed into a password spray.

Family Recon, DNS & OSINT

Flags -d -b -l -f

Concepts Credential Hunting, Username enumeration

Cheatsheet DNS · 53

Installation

sudo apt install -y theharvester

Useful commands2 commands

Reference tool: it does not yet appear in a published machine on the blog, but it is part of the arsenal for its everyday use.