diff --git a/detections/cloud/asl_aws_new_mfa_method_registered_for_user.yml b/detections/cloud/asl_aws_new_mfa_method_registered_for_user.yml index bcc75c8b08..2fd5d4c77d 100644 --- a/detections/cloud/asl_aws_new_mfa_method_registered_for_user.yml +++ b/detections/cloud/asl_aws_new_mfa_method_registered_for_user.yml @@ -25,9 +25,8 @@ references: - https://twitter.com/jhencinski/status/1618660062352007174 tags: analytic_story: - - Compromised User Account - - Azure Active Directory Account Takeover - asset_type: Azure Active Directory + - AWS Identity and Access Management Account Takeover + asset_type: AWS Account confidence: 80 impact: 80 message: A new virtual device is added to user $identity.user.name$ diff --git a/detections/cloud/aws_new_mfa_method_registered_for_user.yml b/detections/cloud/aws_new_mfa_method_registered_for_user.yml index 7884cc68c0..3b45dfa676 100644 --- a/detections/cloud/aws_new_mfa_method_registered_for_user.yml +++ b/detections/cloud/aws_new_mfa_method_registered_for_user.yml @@ -25,9 +25,8 @@ references: - https://twitter.com/jhencinski/status/1618660062352007174 tags: analytic_story: - - Compromised User Account - - Azure Active Directory Account Takeover - asset_type: Azure Active Directory + - AWS Identity and Access Management Account Takeover + asset_type: AWS Account confidence: 80 impact: 80 message: A new virtual device $virtualMFADeviceName$ is added to user $user_arn$ diff --git a/detections/endpoint/disable_etw_through_registry.yml b/detections/endpoint/disable_etw_through_registry.yml index 3303cee687..c3e4e9ed9f 100644 --- a/detections/endpoint/disable_etw_through_registry.yml +++ b/detections/endpoint/disable_etw_through_registry.yml @@ -5,7 +5,7 @@ date: '2023-04-27' author: Steven Dick, Teoderick Contreras, Splunk status: production type: TTP -description: this search is to identify modification in registry to disable ETW windows +description: This search is to identify modification in registry to disable ETW windows feature to evade detections. This technique was seen in several ransomware, RAT and even APT to impaire defenses of the compromise machine and to be able to execute payload with minimal alert as much as possible. @@ -13,7 +13,7 @@ data_source: - Sysmon Event ID 1 search: '| tstats `security_content_summariesonly` count FROM datamodel=Endpoint.Registry WHERE (Registry.registry_path= "*\\SOFTWARE\\Microsoft\\.NETFramework\\ETWEnabled" - Registry.registry_value_data = "0x00000000") BY _time span=1h Registry.registry_path + Registry.registry_value_data = "0x00000000") BY _time span=1h Registry.dest Registry.registry_path Registry.registry_key_name Registry.registry_value_name Registry.registry_value_data Registry.process_guid | `drop_dm_object_name(Registry)` | where isnotnull(registry_value_data) | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `disable_etw_through_registry_filter`' @@ -32,7 +32,7 @@ tags: asset_type: Endpoint confidence: 50 impact: 50 - message: Disable ETW Through Registry + message: Disable ETW Through Registry on $dest$ mitre_attack_id: - T1562.001 - T1562