Exfiltration (TA0010)(external, opens in a new tab or window)
Collection (TA0009)(external, opens in a new tab or window)
Initial Access (TA0001)(external, opens in a new tab or window)
Defense Evasion (TA0005)(external, opens in a new tab or window)
text code block:FROM logs-github.audit-* | WHERE event.dataset == "github.audit" AND event.action IN ("git.clone", "git.push", "repo.download_zip") AND github.programmatic_access_type IN ("OAuth access token", "Fine-grained personal access token", "Personal access token") AND user.name IS NOT NULL AND github.actor_ip IS NOT NULL | IP_LOCATION asn = github.actor_ip WITH { "database_file": "GeoLite2-ASN.mmdb", "properties": ["asn", "organization_name"] } | IP_LOCATION geo = github.actor_ip WITH { "properties": ["country_iso_code"] } | WHERE asn.asn IS NOT NULL | STATS Esql.event_count = COUNT(*), Esql.first_seen = MIN(@timestamp), Esql.last_seen = MAX(@timestamp), Esql.source_ip_values = VALUES(github.actor_ip), Esql.country_values = VALUES(geo.country_iso_code), Esql.repo_values = VALUES(github.repo), Esql.event_action_values = VALUES(event.action), Esql.programmatic_access_type_values = VALUES(github.programmatic_access_type), Esql.user_agent_values = VALUES(github.user_agent), Esql_priv.token_id_values = VALUES(github.token_id), Esql_priv.hashed_token_values = VALUES(github.hashed_token) BY user.name, asn.asn, asn.organization_name // The 7-day history is the rule look-back (from = now-10085m). A group is new when its first event // falls inside the current interval; the 10m bound allows for the 5m interval plus scheduling drift. // Novelty is keyed on user + ASN only, so a new IP inside an already-seen ASN does not re-alert. | WHERE DATE_DIFF("minute", Esql.first_seen, NOW()) <= 10 | EVAL Esql.source_as_number = asn.asn, Esql.source_as_organization_name = asn.organization_name | KEEP user.name, Esql.*, Esql_priv.*
Install detection rules in Elastic Security
Detect GitHub Token Clone Push or ZIP from Unusual ASN in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).