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Kerberoasting Attempt

Informational Resolved
ALR-00167 · 2026-05-23T16:49:13Z

Description

Kerberoasting attack detected: user 'p.thomas' requested TGS tickets for multiple service accounts in 2 minutes. Flagged by SOC365 Engine.

Alert Metadata

Alert ID
ALR-00167
Timestamp
2026-05-23T16:49:13Z
Severity
Informational
Status
Resolved
Detection Source
SOC365 Engine
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-FILE-01
User Account
p.thomas
Source IP
185.221.220.248
Destination IP
10.3.87.34
Origin Country
NL Netherlands

MITRE ATT&CK Mapping

Tactic
Credential Access
Technique
T1558.003
Reference
attack.mitre.org/techniques/T1558.003

Investigation Timeline

16:49:13 Event ingested by SOC365 Engine
16:49:18 EmilyAI triage started — correlation enrichment
16:49:25 EmilyAI confidence: 85% — escalated to human analyst
16:49:29 Alert assigned to analyst: EmilyAI (auto)
16:51:09 Investigation started — querying SIEM and threat intelligence
16:52:16 Containment action taken — endpoint isolated
17:00:29 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00029 25m ago Brute Force SSH Low Escalated SRV-FILE-01
ALR-00229 1h ago Kerberoasting Attempt Informational Open WS-PC-003
ALR-00401 10h ago Kerberoasting Attempt Low Investigating SRV-BACKUP-01
ALR-00331 17h ago Kerberoasting Attempt Low False Positive AP-WIFI-03
ALR-00455 1d ago Shadow IT Discovery Informational Resolved SRV-FILE-01