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Credential Stuffing Attempt

Medium Resolved
ALR-00221 · 2026-05-22T22:43:56Z

Description

Credential stuffing attack detected against VPN gateway. 234 unique username/password combinations attempted. Flagged by Attack Surface Scanner.

Alert Metadata

Alert ID
ALR-00221
Timestamp
2026-05-22T22:43:56Z
Severity
Medium
Status
Resolved
Detection Source
Attack Surface Scanner
Assigned Analyst
James Okonkwo

Endpoint Information

Hostname
SRV-FILE-01
User Account
system
Source IP
185.86.220.58
Destination IP
10.2.38.112
Origin Country
UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

22:43:56 Event ingested by SOC365 Engine
22:43:58 EmilyAI triage started — correlation enrichment
22:44:03 EmilyAI confidence: 89% — escalated to human analyst
22:44:31 Alert assigned to analyst: James Okonkwo
22:45:39 Investigation started — querying SIEM and threat intelligence
22:48:19 Containment action taken — endpoint isolated
22:56:25 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00096 5h ago Credential Stuffing Attempt Low False Positive WS-PC-001
ALR-00228 6h ago Credential Stuffing Attempt Informational False Positive SRV-APP-01
ALR-00295 10h ago Unauthorised USB Device Medium False Positive SRV-FILE-01
ALR-00022 12h ago Failed MFA Challenge Informational Open SRV-FILE-01
ALR-00100 13h ago Rogue DHCP Server Low Investigating SRV-FILE-01