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Threat Feed

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Network Packet Capture

6 briefs RSS
low advisory

Host Detected with Suspicious Windows Processes via Machine Learning

Elastic's machine learning job, utilizing the ProblemChild supervised model and unsupervised techniques, detects Windows hosts exhibiting clusters of suspicious processes with unusually high malicious probability scores, often indicative of defense evasion through Living Off The Land Binaries (LOLbins) and masquerading techniques.

Elastic Defend +6 defense-evasion masquerading lolbins machine-learning windows ml-detection endpoint-security
2t
low advisory

Unusual Process Writing Data to an External Device Detected by Machine Learning

Elastic's Data Exfiltration Detection integration leverages machine learning to identify rare processes writing data to external devices, indicating potential data exfiltration by adversaries using benign-looking processes.

Elastic Defend +15 exfiltration machine-learning elastic-defend endpoint lateral-movement rdp anomaly-detection privilege-escalation +29
22t
low advisory

Potential Data Exfiltration Activity to an Unusual Region

Elastic's machine learning job identifies potential data exfiltration activity to unusual geo-locations by detecting anomalies in network traffic patterns, indicating adversaries leveraging command and control channels to transfer data outside normal organizational patterns.

Elastic Stack +5 exfiltration data-exfiltration machine-learning elastic network-detection command-and-control initial-access persistence
4t
low advisory

Potential Data Exfiltration Activity to an Unusual IP Address

Elastic's machine learning rule detects potential data exfiltration by identifying anomalous network traffic, specifically large data transfers to unusual geo-locations via IP addresses, indicating possible exfiltration over command and control channels.

Data Exfiltration Detection integration +5 machine-learning network-security exfiltration data-loss-prevention elastic
1t
low advisory

Unusual Linux Network Activity Detected by Machine Learning

This Elastic machine learning rule detects anomalous network activity originating from Linux processes that typically do not engage in network communication, signifying potential command-and-control, lateral movement, persistence, or data exfiltration activity, often via process exploitation or injection.

Elastic Defend +2 endpoint linux threat-detection machine-learning detection-rule
3t updated
low advisory

Unusual Hour for a User to Logon

An Elastic machine learning rule detects unusual user logon times, which can indicate credential compromise or unauthorized access, particularly when attackers operate from different time zones or during non-business hours, prompting investigation into the affected user account and related activities.

Elastic Defend +8 identity-and-access-audit threat-detection machine-learning initial-access
1t