Elastic medium stable kql
GitHub Exfiltration via High Number of Repository Clones by User
Detects a high number of repository cloning actions by a single user within a short time frame. Adversaries may clone multiple repositories to exfiltrate sensitive data.
Detection Logic
from logs-github.audit-* metadata _id, _index, _version
| where
data_stream.dataset == "github.audit" and event.type == "change" and event.action == "git.clone"
| stats
Esql.event_count = COUNT(*),
Esql.github_org_values = values(github.org),
Esql.github_repo_values = values(github.repo),
Esql.github_repository_public_values = values(github.repository_public),
Esql.github_token_id_values = values(github.token_id),
Esql.github_user_agent_values = values(github.user_agent),
Esql.user_name_values = values(user.name),
Esql.agent_id_values = values(agent.id),
Esql.data_stream_dataset_values = values(data_stream.dataset),
Esql.data_stream_namespace_values = values(data_stream.namespace)
by user.name
| keep Esql.*
| where
Esql.event_count >= 25 Field Validations
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