Security ArtifactsDFIR Intelligence
SearchSign inSubscribe

T1595.001sub-technique of T1595 Active Scanning

Scanning IP Blocks

PREnothing on this site yetT1595.001 on attack.mitre.org

Adversaries may scan victim IP blocks to gather information that can be used during targeting. Public IP addresses may be allocated to organizations by block, or a range of sequential addresses. Adversaries may scan IP blocks in order to Gather Victim Network Information, such as which IP addresses are actively in use as well as more detailed information about hosts assigned these addresses.

MITRE ATT&CK 19.2, retrieved 2026-09-12

how MITRE says to see it

Detection of Scanning IP Blocks

  • Monitoring the content of network traffic can help detect patterns associated with active scanning activities. This can include identifying repeated connection attempts, unusual scanning behaviors, or probing activity targeting multiple IP addresses across a network. Monitor network data for uncommon data flows.

what reduces it

  • 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.

the rest of T1595

The description, detection analytics and mitigations are reproduced from MITRE ATT&CK, version 19.2, under its terms of use. The checklists, hunts, labs and everything else linked here are this site’s.