↳ GitHub sourceAnalytics ruleMedium
Azure DevOps Service Connection Abuse
Description
'Flags builds/releases that use a large number of service connections if they aren't manually in the allow list.
This is to determine if someone is hijacking a build/release and adding many service connections in order to abuse or dump credentials from service connections.'
- Rule type
- Scheduled
- Version
- 1.0.6
- Declared status
- Available
- Query frequency
- 1d
- Query period
- 14d
- Trigger
- gt 0
Declared MITRE coverage
KQL query
Original query, unchanged.
// How many greater than Service Connections you want to view per build/release
let ServiceConnectionThreshold = 4;
let BypassDefIds = datatable(DefId:string, Type:string, ProjectName:string)
[
//"103", "Release", "ProjectA",
//"42", "Release", "ProjectB",
//"122", "Build", "ProjectB"
];
ADOAuditLogs
| where OperationName == "Library.ServiceConnectionExecuted"
| extend DefId = tostring(Data.DefinitionId), Type = tostring(Data.PlanType), ConnectionId = tostring(Data.ConnectionId)
| parse ScopeDisplayName with OrganizationName ' (Organization)'
| summarize CurrentCount = dcount(tostring(ConnectionId)), ConnectionNames = make_set(tostring(Data.ConnectionName)), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated)
by OrganizationName, tostring(DefId), tostring(Type), ProjectId, ProjectName, ActorUPN, IpAddress
| where CurrentCount > ServiceConnectionThreshold
| join kind=anti BypassDefIds on $left.DefId==$right.DefId and $left.Type == $right.Type and $left.ProjectName == $right.ProjectName
| extend link = iif(
Type == "Build", strcat('https://dev.azure.com/', OrganizationName, '/', ProjectName, '/_build?definitionId=', DefId),
strcat('https://dev.azure.com/', OrganizationName, '/', ProjectName, '/_release?_a=releases&view=mine&definitionId=', DefId))
| extend timestamp = StartTime
| extend AccountName = tostring(split(ActorUPN, "@")[0]), AccountUPNSuffix = tostring(split(ActorUPN, "@")[1])
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
d564ff12-8f53-41b8-8649-44f76b37b99f
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC