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Threat hunting using Windows Defender telemetry data

#1
10-22-2020, 11:29 PM
You grab telemetry from Defender to spot hidden threats fast. I check event flows daily for weird spikes in activity. You notice unusual file changes that point to intruders. But patterns emerge only after you cross reference multiple sources. Then you filter noise to focus on real risks. Perhaps something odd in network calls grabs your attention right away. Also memory usage jumps can signal trouble brewing underneath.
You build queries on the fly to hunt deeper into logs. I see how data points connect across machines in your setup. But sometimes false positives waste hours until you tweak the view. Then anomalies in user actions reveal lateral movement attempts. You track these over days for better context on attacks. Or maybe process creations link back to initial entry points you missed before. Also timing of events helps you predict next moves by bad actors.
Threat hunting gets sharper when you use Defender data creatively like this. I experiment with different views to catch evasive malware hiding well. You compare baseline behaviors against live feeds for quick wins. But gaps in coverage show up if you ignore certain signals. Then combining sources gives fuller pictures of ongoing intrusions. Perhaps cloud synced info adds layers you never expected before. Also your skills grow as you practice spotting these subtle clues daily.
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ProfRon
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Joined: Jul 2018
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Threat hunting using Windows Defender telemetry data

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