1200KM / sigma-rule
PowerShell Credential Prompt — Sigma Rule
Sigma rule ca8b77a9-d499-4095-b793-5d5f330d450e. PowerShell Credential Prompt — Sigma Rule. Detects PowerShell calling a credential prompt
Rule metadata and linked tags
Author: John Lambert (idea), Florian Roth (Nextron Systems). Source status: test; severity: high. Source dates: 2017-04-09 / 2022-12-25.
{
"product": "windows",
"category": "ps_script",
"definition": "Requirements: Script Block Logging must be enabled"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 19493adc568283754c9d12524299a3468c5ef23eeb24a00000ad8822a1cdd435
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: PowerShell Credential Prompt
id: ca8b77a9-d499-4095-b793-5d5f330d450e
status: test
description: Detects PowerShell calling a credential prompt
references:
- https://twitter.com/JohnLaTwC/status/850381440629981184
- https://t.co/ezOTGy1a1G
author: John Lambert (idea), Florian Roth (Nextron Systems)
date: 2017-04-09
modified: 2022-12-25
tags:
- attack.credential-access
- attack.execution
- attack.t1059.001
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains: 'PromptForCredential'
condition: selection
falsepositives:
- Unknown
level: high
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.