Reconnaissance
Reconnaissance is a set of processes and techniques (Footprinting, Scanning & Enumeration) used to covertly discover and collect information about a target system.
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Reconnaissance is a set of processes and techniques (Footprinting, Scanning & Enumeration) used to covertly discover and collect information about a target system.
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In this process, you will directly interact with the computer system to gain information. This information can be relevant and accurate. But there is a risk of getting detected if you are planning active reconnaissance without permission. If you are detected, then system admin can take severe action against you and trail your subsequent activities.
In this process, you will not be directly connected to a computer system. This process is used to gather essential information without ever interacting with the target systems
A good start for this is the OSINT Framework, which provides a powerfull wiki:
The list is huge and I'll just cover a few of them, which I also used during the CAS.
Results looks like this:
theHarvester -d csnc.ch -l 1000 -b bing
Result:
This is just a short overview! For more ressources please check out the OSINT Framework Website :)
Hunter:
Another cool tool is called theHarvester:
Another useful tool to check if a gathered e-mail adress is valid or not can be:
