Informer is OSINT based information gathering tool made with python programming language. It has reach features like whois information gathering, geo-location information gathering, DNS information gathering, sub-domain information gathering and shodan information gathering abilities.

Github Link : https://github.com/sudo0x18/informer

For downloading and installation you must have git and python installed in your device. Clone the repository with git into your computer device and install all requirements.

#Clone repo
git clone https://github.com/sudo0x18/informer.git#Move into directory
cd informer#Install requirements
pip install -r requirements.txt

Usage and available option in every tool is very important to understand. Let’s look at then very quickly.

python3 informer.py --helpOptions:
 -h, --help Show this help message and exit
 -t TARGET, --target TARGET Target domain name.
 -d , --dns Get DNS Information
 -g , --geolocation Get Geolocation Information.
 -s , --shodan Get Shodan Information.
 -sd, --subdomain Get Subdomain Information.
 -o OUTPUT, --output OUTPUT Save output to desired file.

Informer makes whois information and DNS information gathering very fast and in very easy way. We just need o provide valid domain name and specify valid flags to get the desired results.

python3 informer.py -t google.com -d# -t : Specify the target domain
# -d : Tells informer to fetch DNS info

Gathering sub-domain information is very important in web application pen-testing. Informer makes this thing very easy and fast effectively. You can gather sub-domain info as below.

python3 informer.py -t example.com -sd#-sd : Tells informer for sub-domain info gathering

Informer also provides geo-location information gathering, shodan info and saving the output to a file. It will automatically store shodan info in a file called shodan_<domain>.json with a pretty much indentation.

python3 informer.py -t example.com -g -s -o filename.txt# -g : For geo-location info gathering
# -s : For shodan info gathering
# -o : To store the output into a file