Possible network sniffing attempt via tcpdump or tshark

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

ATT&CK Technique

Network Sniffing (T1040)

Severity

Low

Description

Attackers may monitor network traffic for cleartext credentials or to learn the network's configuration.

Attacker's Goals

Gain user-account credentials.

Investigative actions

Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.