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Deep Packet Inspection vs TCP Analysis: What NDR Brings to the Table

ID: bf4c4f69-4dc7-5977-8254-3610b3be83f6

STIX ID: report--bf4c4f69-4dc7-5977-8254-3610b3be83f6

Feed Name: Fidelis Security

Date Published: 2025-08-13

Date Updated: 2026-04-27

Author: Sarika Sharma

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This brief guidance highlights network behaviors indicative of APT-style beaconing—regular interval communications, unusual port combinations, consistent data transfer patterns, and off-hours traffic to uncommon destinations—and advises using deeper packet inspection to investigate these signals.

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