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Detection rules › Sigma

Outgoing Logon with New Credentials

Status
test
Severity
low
Log source
product windows, service security
Author
Max Altgelt (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects logon events that specify new credentials

MITRE ATT&CK coverage

TacticTechniques
Lateral MovementT1550 Use Alternate Authentication Material

Event coverage

ProviderEventTitle
Security-AuditingEvent ID 4624An account was successfully logged on.

Rule body yaml

title: Outgoing Logon with New Credentials
id: def8b624-e08f-4ae1-8612-1ba21190da6b
status: test
description: Detects logon events that specify new credentials
references:
    - https://go.recordedfuture.com/hubfs/reports/mtp-2021-0914.pdf
author: Max Altgelt (Nextron Systems)
date: 2022-04-06
tags:
    - attack.lateral-movement
    - attack.t1550
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4624
        LogonType: 9
    condition: selection
falsepositives:
    - Legitimate remote administration activity
level: low

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID: 4624
    LogonType: 9

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
LogonTypeeq
  • 9 corpus 8 (sigma 6, elastic 2)