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Credential Stuffing Attempt

Low Resolved
ALR-00363 · 2026-05-23T13:11:14Z

Description

Credential stuffing attack detected against VPN gateway. 234 unique username/password combinations attempted. Flagged by Email Gateway.

Alert Metadata

Alert ID
ALR-00363
Timestamp
2026-05-23T13:11:14Z
Severity
Low
Status
Resolved
Detection Source
Email Gateway
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-WEB-01
User Account
p.thomas
Source IP
45.118.148.71
Destination IP
10.3.250.196
Origin Country
RU Russia

MITRE ATT&CK Mapping

Tactic
Credential Access
Technique
T1110.004
Reference
attack.mitre.org/techniques/T1110.004

Investigation Timeline

13:11:14 Event ingested by SOC365 Engine
13:11:16 EmilyAI triage started — correlation enrichment
13:11:26 EmilyAI confidence: 82% — escalated to human analyst
13:11:38 Alert assigned to analyst: EmilyAI (auto)
13:12:14 Investigation started — querying SIEM and threat intelligence
13:17:18 Containment action taken — endpoint isolated
13:24:48 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00191 6h ago Unusual Outbound Traffic Low False Positive SRV-WEB-01
ALR-00381 9h ago Credential Stuffing Attempt Low Investigating WS-PC-006
ALR-00193 12h ago Credential Stuffing Attempt Low Investigating AP-WIFI-03
ALR-00201 19h ago Credential Stuffing Attempt Medium False Positive VM-DEV-01
ALR-00175 19h ago Credential Stuffing Attempt Medium Escalated SRV-DC-01