Sunday, December 14, 2025

New Analyst’s SOC Journey: XDR & Endace Investigations


Further Contributor: Pradnya Padaki

Stepping right into a Safety Operations Centre (SOC) at Cisco Dwell Melbourne for the primary time was an expertise charged with pleasure and barely nervous. Beforehand, my solely understanding of SOCs got here from listening to buyer tales and dealing with their challenges—I had identified the strain, urgency, and teamwork required solely by their eyes, by no means having been in these sneakers myself.

Opposite to my expectations of a drawn-out onboarding, the method was surprisingly swift (taking lower than 10-20 minutes). Because of Duo, I used to be rapidly given entry to all of the important instruments: Cisco XDR, Splunk, firewall dashboards, and extra from the duo listing. This seamless entry calmed my nerves and made me really feel immediately welcome.

After that, it was all about getting comfy with the instruments and escalation processes. As a Tier 1/Tier 2 analyst, my day by day routine revolved round Cisco XDR, which introduced collectively incident alerts from each nook of the community. Every alert got here full of context and intelligence, making investigations a lot much less overwhelming.

One in all my highlights was utilizing Endace for the primary time. This device gave me the flexibility to dive into packet-level particulars, filter information quickly, and transition from high-level incidents to granular packet captures. Correlating metadata and community flows turned easy and even pleasurable, serving to me remedy issues with rather more confidence.

Throughout the occasion, I used to be incessantly placed on the spot to share my firsthand expertise of working in a SOC for the primary time, notably reflecting on my day two investigations. This inspired me to watch fastidiously and suppose deeply concerning the operational realities. Many purchasers confirmed eager curiosity, recognizing that my expertise might quickly mirror their very own, which made these interactions particularly helpful and motivating.

The primary day was all about orientation: understanding the workflow, attending to know the instruments, and growing the mindset wanted for efficient investigations. With assist from skilled colleagues, I discovered to triage incidents, examine menace intel, dive into logs, and seek the advice of with the crew earlier than making selections. By the day’s finish, my preliminary nervousness had remodeled into pleasure.

On day two, I took on incidents independently, performing full triage and drafting escalation stories myself.

Background: Throughout my preliminary SOC task, an alert was generated by Cisco XDR highlighting that an inner endpoint was making connections to a number of IP addresses identified for malicious exercise.

Detection: Cisco XDR flagged the suspicious habits, visualizing the connections between one inner asset and several other high-risk exterior hosts. This raised instant considerations about potential malware or command-and-control exercise (see Cisco XDR investigation beneath).

Investigation: To validate and additional analyze the incident, I used Endace for in-depth packet inspection. Filtering for the particular IP and utility revealed a constant circulate of site visitors matching file switch patterns. Additional evaluation confirmed that the site visitors was generated by a BitTorrent utility working on the endpoint (see Endace screenshot beneath).

endace investigationendace investigation
Cisco Live Melbourne 2025 Endace investigationCisco Live Melbourne 2025 Endace investigation

Response motion: From the primary alert in Cisco XDR, I carried out a complete investigation to rapidly confirm the violation of insurance policies. As a Tier 2 analyst, my response included correlating information from a number of sources, conducting packet captures with Endace to rule out malware, and assessing the broader affect on the setting.  As soon as the investigation confirmed Bittorrent utilization because the supply of suspicious site visitors, the case was formally escalated to make sure applicable follow-up, together with person schooling and enhanced community controls to mitigate recurrence. The affected endpoint was flagged for additional monitoring, and the applying was disabled to forestall ongoing peer-to-peer file sharing. An in depth incident report was compiled, outlining dangers akin to malware publicity, bandwidth consumption, and privateness vulnerabilities related to unauthorized Bittorrent exercise.

Consequence & Reflection: Seeing the investigation by preliminary alert to root trigger dedication—leveraging each Cisco XDR and Endace—marked a significant milestone in my SOC journey. This end-to-end incident dealing with not solely strengthened procedural self-discipline however considerably boosted my confidence in dealing with real-world threats.

By the tip of the occasion, I noticed the true essence of a SOC isn’t nearly instruments or dashboards. It’s about individuals: collaboration, belief, shared curiosity, and supporting one another. Whilst a newcomer, I used to be welcomed, trusted, and inspired—which made a world of distinction.

In abstract, my first SOC expertise turned preliminary nerves into real confidence. I entered as an observer and left feeling like a part of the crew—a journey outlined by assist, studying, and the joys of fixing real-world safety challenges.

Take a look at the opposite blogs by my colleagues within the Cisco Dwell Melbourne 2026 SOC.


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