A collection of Go tools I make while I learn a little about GoLang.
Mostly Work-In-Progress and tinkering with blue-team, threat intelligence things

• ipasn.go lists BGP Autonomous System Numbers and info about an IP address
• asn.go lists IPv4 and IPv6 Prefixes (subnets) advertised as part of a given ASN

• hpfeeds-client.go is a reworked version of a broken, un-maintained HPFeeds implementation in go. I needed an easy way to just get the JSON Payload out of my Honeypot network. You can watch my MHN instance with it like this:

go run hpfeeds-client.go seckc-community fk6QgrnyvwbWSxCIwL5SIc2oARC4DXx46 mhn.h-i-r.net 10000 cowrie.sessions

or compile it first:

go build hpfeeds-client.go
./hpfeeds-client seckc-community fk6QgrnyvwbWSxCIwL5SIc2oARC4DXx46 mhn.h-i-r.net 10000 cowrie.sessions

You can also pass the output directly to formatting and query tools like jq or save the json for use later. jq '.peerIP,.urls' for example, will list the attacking IP addresses and any payload URLs that the honeypot reported to HPFeeds

Before using these tools, you must register with VirusTotal, acquire an API key and export it in the VTAPI environment variable, such as in your .bashrc or .zshrc file.
export VTAPI=dab2_THIS_IS_AN_EXAMPLE_API_KEY_-_CHANGEME_e8e0496bcfce5e91f0000
Some of these tools will iterate through a configurable number of pages of passive data (10 by default) which can use a lot of your daily API request allocation, so tune the "maxpages" variable to suit your situation if you find the number of queries it makes to be too much.

• vthash.go is a command-line tool to gather the list of detections from VirusTotal for a given file or file hash. This allows security analysts to quickly size up an unknown file they have run across to see if it's been detected previously without firing up a web browser or uploading it.
• vtdomain.go fetches information about a domain name from VirusTotal v3 domains API.
• vtip.go queries IP address reputation and hostnames through VirusTotal's v3 ip_addresses API.