TA0043 · RECONNAISSANCE
Gather Victim Network Information
Adversaries may gather information about the victim's networks that can be used during targeting.
Detect it with
Much of this activity may have a very high occurrence and associated false positive rate, as well as potentially taking place outside the visibility of the target organization, making detection difficult for defenders.
Why it matters on shift
Gather Victim Network Information is one of the concrete ways adversaries achieve reconnaissance. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After reconnaissance, the next tactic is usually Resource Development. Search your telemetry for the transition before closing the ticket.
6 sub-techniques
How it shows up in practice
- T1590.001
Domain Properties
Adversaries may gather information about the victim's network domain(s) that can be used during targeting.
- T1590.002
DNS
Adversaries may gather information about the victim's DNS that can be used during targeting.
- T1590.003
Network Trust Dependencies
Adversaries may gather information about the victim's network trust dependencies that can be used during targeting.
- T1590.004
Network Topology
Adversaries may gather information about the victim's network topology that can be used during targeting.
- T1590.005
IP Addresses
Adversaries may gather the victim's IP addresses that can be used during targeting. Public IP addresses may be allocated to organizations by block, or a range of sequential addresses.
- T1590.006
Network Security Appliances
Adversaries may gather information about the victim's network security appliances that can be used during targeting.
Kill-chain context