Uncommon ARP cache listing via arp.exe

Cortex XDR Analytics Alert Reference by data source

Product
Cortex XDR
Last date published
2024-12-03
Category
Analytics Alert Reference
Index by
data source

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Hour

Required Data

  • Requires:
    • XDR Agent

Detection Modules

Detector Tags

ATT&CK Tactic

Discovery (TA0007)

ATT&CK Technique

System Network Configuration Discovery (T1016)

Severity

Low

Description

The arp.exe command is used to display and modify entries in the Address Resolution Protocol (ARP) cache. Adversaries may attempt to use the command to discover remote systems they could compromise.

Attacker's Goals

Adversaries may attempt to use the command to discover remote systems they could compromise.

Investigative actions

Check whether the initiating process is allowed in your organization. (If the parent process is cmd.exe, check the process that spawned it).