pC_cefawsguarddutysecurityalert1.md
June 14, 2023 ยท View on GitHub
Parser Content
{
Name = cef-aws-guardduty-security-alert-1
Conditions = [ """CEF:""", """destinationServiceName =AWS""", """"awsApiCallAction":""", """"serviceName":"guardduty"""", """"type":"Recon:IAMUser/TorIPCaller"""" ]
cef-aws-guardduty-security-alert-template = {
Vendor = Amazon
Product = AWS GuardDuty
Lms = Splunk
DataType = "alert"
TimeFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
Fields = [
"""exabeam_host=({host}[\w.\-]{1,2000})""",
""""createdAt":\s{0,100}"({time}\d{4}-\d{2}-\d{2}T(\d{2}:){2}\d{2}\.\d{1,100}Z)",""",
""""ipAddressV4":\s{0,100}"({src_ip}(\d{1,3}\.){3}\d{1,3})"""",
""""title":"({event_name}[^"]{1,2000})",""",
""""type":"({alert_type}[^"]{1,2000}):({alert_name}[^"]{1,2000})",""",
""""severity":\s{0,100}({alert_severity}[\d.]{1,2000}),""",
""""region":\s{0,100}"({region}[^"]{1,2000}?)",""",
""""description":\s{0,100}"({additional_info}[^"]{1,2000}?)"""",
""""accountId":\s{0,100}"({account_id}[^"]{1,2000}?)","""
"""domain":"({domain}[^"]{1,2000})"""",
"""resource":[^}]{1,2000}principalId":\s{0,100}"([^},]{1,2000}?(:({user_email}[^@]{1,2000}@[^},]{1,2000}))?)"""",
"""resource":[^}]{1,2000}"userName":\s{0,100}"({user}[^},]{1,2000}?)"""",
"""resource":[^}]{1,2000}"userType":\s{0,100}"({user_type}[^},]{1,2000}?)"""",
"""key":"PrincipalId","value":"([^:]{1,2000}:)?({user_email}[^@]{1,2000}@[^},"]{1,2000}?)"""",
""""resourceType":\s{0,100}"({resource_type}[^"]{1,2000})"""",
"""S3BucketDetails:\s{0,100}\[\{Arn:\s{0,100}({object}[^,]{1,2000}),Name:""",
}