chg: [techniques] listed and identified

README.md

@@ -1,6 +1,15 @@
 # Active Scanning Techniques
 
-This repository is a collection of different techniques in order to find specific hosts to scan.
+This repository is a collection of different techniques in order to find specific hosts to scan. The goal is to document the available techniques and
+improve the scanning for defenders.
+
+## Why this collection?
+
+- Finding vulnerable devices can be challenging for CSIRTs (waiting for the next scan in Shodan, Censys).
+- Finding the scope of the scan (regional versus global, wrong IRR allocation).
+- Discovering newly devices exposed without scanning the whole IPv4 space.
+- Discovering named-based services (many services are based on name such as HTTP virtual-host, TLS SNI).
+- Discovering newly exposed devices or services using IPv6 addresses.
 
 # Overview
 
@@ -9,3 +18,62 @@ This repository is a collection of different techniques in order to find specifi
 # Slides
 
 - [Improving Internet Wide Scanning with Dynamic Scanning](https://github.com/adulau/active-scanning-techniques/blob/main/slides/active-scanning.pdf)
+
+# Techniques
+
+## (TAS.1) Certificate Transparency
+
+### (TAS.1.1) Extract subjectAltName
+
+- Resolving AAAA
+
+	- Adding most common hostname  (short dictionary list)
+	- DNS brute-forcing
+
+		- SDBF
+		- fierce
+		- dnsenum
+
+## (TAS.2) Newly registered domains
+
+## (TAS.3) Passive DNS feed
+
+### (TAS.3.1) Extract CNAME, RRNAME
+
+### (TAS.3.2) Extract AAAA
+
+## (TAS 4) BGP Monitoring
+
+## (TAS 5) Discovering active IPv6 subnet from an IPv6 address
+
+### (TAS 5.1) Finding CIDR from RIR whois
+
+### (TAS 5.2) Active monitoring of public services logs (HTTP servers, public NTP servers)
+
+## (TAS 6) Blackhole network monitoring
+
+### (TAS 6.1) Extracting IPv6 addresses from GRE packets
+
+### (TAS 6.2) All protocols extraction "tshark -n -r $FILENAME  -E separator="/n" -E occurrence=a -T fields -e ipv6.src ipv6.dst | sort -u | gzip -f
+"
+
+## (TAS 7) Bitorrent GET_PEERS N6 request
+
+## (TAS 8) Guessing IPv6 addresses by using most common IPv6 manual allocations from an IPv6 subnet
+
+### (TAS 8.1) Enumerating easy to remember hex block (CAFE, DEAD, BEEF, ABBA, FFFF, ....)
+
+### (TAS 8.2) Enumerating TCP/UDP service port as last part
+
+## (TAS 9) DomainClassifier extraction (brute-force extraction of potential hostnames)
+
+### (TAS 9.1) GitHub commit streams
+
+### (TAS 9.2) Active crawling from CT logs
+
+### (TAS 9.3) Other sources such as social networks, pasties website, ....
+
+## (TAS 10) Extract potential hostname from IPv4 reverse PTR
+
+### (TAS 10.1) Enumerating IPv4/PTR
+