Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
AWS STS AssumeRole Misuse
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
AWS STS AssumeRole Misuse
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: AWS STS AssumeRole Misuse
id: 905d389b-b853-46d0-9d3d-dea0d3a3cd49
status: test
description: Identifies the suspicious use of AssumeRole. Attackers could move laterally and escalate privileges.
references:
- https://github.com/elastic/detection-rules/pull/1214
- https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html
author: Austin Songer @austinsonger
date: 2021-07-24
modified: 2022-10-09
tags:
- attack.lateral-movement
- attack.privilege-escalation
- attack.defense-evasion
- attack.t1548
- attack.t1550
- attack.t1550.001
logsource:
product: aws
service: cloudtrail
detection:
selection:
userIdentity.type: AssumedRole
userIdentity.sessionContext.sessionIssuer.type: Role
condition: selection
falsepositives:
- AssumeRole may be done by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
- AssumeRole from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
- Automated processes that uses Terraform may lead to false positives.
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/cloud/aws/cloudtrail/aws_sts_assumerole_misuse.yml