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T1590 Gather Victim Network Information

Adversaries may gather information about the victim’s networks that can be used during targeting. Information about networks may include a variety of details, including administrative data (ex: IP ranges, domain names, etc.) as well as specifics regarding its topology and operations.

Adversaries may gather this information in various ways, such as direct collection actions via Active Scanning or Phishing for Information. Information about networks may also be exposed to adversaries via online or other accessible data sets (ex: Search Open Technical Databases).123 Gathering this information may reveal opportunities for other forms of reconnaissance (ex: Active Scanning or Search Open Websites/Domains), establishing operational resources (ex: Acquire Infrastructure or Compromise Infrastructure), and/or initial access (ex: Trusted Relationship).

Item Value
ID T1590
Sub-techniques T1590.001, T1590.002, T1590.003, T1590.004, T1590.005, T1590.006
Tactics TA0043
Platforms PRE
Version 1.0
Created 02 October 2020
Last Modified 15 April 2021

Procedure Examples

ID Name Description
G0125 HAFNIUM HAFNIUM gathered the fully qualified domain names (FQDNs) for targeted Exchange servers in the victim’s environment.4

Mitigations

ID Mitigation Description
M1056 Pre-compromise This technique cannot be easily mitigated with preventive controls since it is based on behaviors performed outside of the scope of enterprise defenses and controls. Efforts should focus on minimizing the amount and sensitivity of data available to external parties.

References

  1. NTT America. (n.d.). Whois Lookup. Retrieved October 20, 2020. ↩

  2. Hacker Target. (n.d.). DNS Dumpster. Retrieved October 20, 2020. ↩

  3. CIRCL Computer Incident Response Center. (n.d.). Passive DNS. Retrieved October 20, 2020. ↩

  4. Gruzweig, J. et al. (2021, March 2). Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities. Retrieved March 3, 2021. ↩