Merge branch 'main' into react_sync_rta_4182

Author: shashank-elastic

detection_rules/schemas/definitions.py

@@ -247,3 +247,11 @@ def validator(value):
     'geo_point', 'geo_shape', 'point', 'shape',
     'percolator'
 ]
+
+# definitions for the integration to index mapping unit test case
+IGNORE_IDS = ["eb079c62-4481-4d6e-9643-3ca499df7aaa", "699e9fdb-b77c-4c01-995c-1c15019b9c43",
+              "0c9a14d9-d65d-486f-9b5b-91e4e6b22bd0", "a198fbbd-9413-45ec-a269-47ae4ccf59ce",
+              "0c41e478-5263-4c69-8f9e-7dfd2c22da64", "aab184d3-72b3-4639-b242-6597c99d8bca",
+              "a61809f3-fb5b-465c-8bff-23a8a068ac60", "f3e22c8b-ea47-45d1-b502-b57b6de950b3"]
+IGNORE_INDICES = ['.alerts-security.*', 'logs-*', 'metrics-*', 'traces-*', 'endgame-*',
+                  'filebeat-*', 'packetbeat-*', 'auditbeat-*', 'winlogbeat-*']

rta/linux_defense_evasion_process_masquerading_via_exec.py

@@ -0,0 +1,47 @@
+# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+# or more contributor license agreements. Licensed under the Elastic License
+# 2.0; you may not use this file except in compliance with the Elastic License
+# 2.0.
+
+import sys
+from . import RtaMetadata, common
+
+metadata = RtaMetadata(
+    uuid="4e6ded7e-23cb-460c-8a5b-21c5e5e8d6e8",
+    platforms=["linux"],
+    endpoint=[
+        {
+            "rule_name": "Potential Process Masquerading via Exec",
+            "rule_id": "e6669bc3-cb75-4fb3-91e0-ddaa06dd59b2",
+        },
+    ],
+    techniques=["T1564", "T1059"],
+)
+
+
+@common.requires_os(*metadata.platforms)
+def main() -> None:
+    common.log("Creating a fake executable..")
+    masquerade = "[foo]"
+    masquerade2 = "/tmp/sh"
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade])
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade2)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade2])
+
+    commands = [masquerade2, masquerade]
+    common.execute([*commands], timeout=5, kill=True)
+    common.log("Cleaning...")
+    common.remove_file(masquerade)
+    common.remove_file(masquerade2)
+    common.log("Simulation successfull!")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

rta/linux_defense_evasion_proxy_execution_via_crash.py

@@ -0,0 +1,47 @@
+# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+# or more contributor license agreements. Licensed under the Elastic License
+# 2.0; you may not use this file except in compliance with the Elastic License
+# 2.0.
+
+import sys
+from . import RtaMetadata, common
+
+metadata = RtaMetadata(
+    uuid="fa40fdc4-23bf-491c-bc55-6a6848c5b6da",
+    platforms=["linux"],
+    endpoint=[
+        {
+            "rule_name": "Potential Proxy Execution via Crash",
+            "rule_id": "995c8bdb-5ebb-4c5b-9a03-4d39b52c0ff3",
+        },
+    ],
+    techniques=["T1218", "T1059"],
+)
+
+
+@common.requires_os(*metadata.platforms)
+def main() -> None:
+    common.log("Creating a fake executable..")
+    masquerade = "/tmp/crash"
+    masquerade2 = "/tmp/sh"
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade])
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade2)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade2])
+
+    commands = [masquerade, '-h', masquerade, '-c', 'whoami']
+    common.execute([*commands], timeout=5, kill=True)
+    common.log("Cleaning...")
+    common.remove_file(masquerade)
+    common.remove_file(masquerade2)
+    common.log("Simulation successfull!")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

rta/linux_defense_evasion_proxy_execution_via_ld_so.py

@@ -0,0 +1,47 @@
+# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+# or more contributor license agreements. Licensed under the Elastic License
+# 2.0; you may not use this file except in compliance with the Elastic License
+# 2.0.
+
+import sys
+from . import RtaMetadata, common
+
+metadata = RtaMetadata(
+    uuid="e2a136e5-bda1-41c4-8143-514c0b0784c4",
+    platforms=["linux"],
+    endpoint=[
+        {
+            "rule_name": "System Binary Proxy Execution via ld.so",
+            "rule_id": "10cb6563-35a9-45b7-a394-e7bca6fd5bed",
+        },
+    ],
+    techniques=["T1218", "T1059"],
+)
+
+
+@common.requires_os(*metadata.platforms)
+def main() -> None:
+    common.log("Creating a fake executable..")
+    masquerade = "/lib/ld-linux-foo.so"
+    masquerade2 = "/tmp/sh"
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade])
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade2)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade2])
+
+    commands = [masquerade, masquerade, '-c', 'whoami']
+    common.execute([*commands], timeout=5, kill=True)
+    common.log("Cleaning...")
+    common.remove_file(masquerade)
+    common.remove_file(masquerade2)
+    common.log("Simulation successfull!")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

rta/linux_defense_evasion_proxy_execution_via_pidstat.py

@@ -0,0 +1,47 @@
+# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+# or more contributor license agreements. Licensed under the Elastic License
+# 2.0; you may not use this file except in compliance with the Elastic License
+# 2.0.
+
+import sys
+from . import RtaMetadata, common
+
+metadata = RtaMetadata(
+    uuid="4f705092-fae2-4455-94ab-e42fb13496e7",
+    platforms=["linux"],
+    endpoint=[
+        {
+            "rule_name": "Potential Proxy Execution via Pidstat",
+            "rule_id": "436e12a8-7a03-4f6f-a3b2-3fe8b8f4c474",
+        },
+    ],
+    techniques=["T1218", "T1059"],
+)
+
+
+@common.requires_os(*metadata.platforms)
+def main() -> None:
+    common.log("Creating a fake executable..")
+    masquerade = "/tmp/pidstat"
+    masquerade2 = "/tmp/sh"
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade])
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade2)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade2])
+
+    commands = [masquerade, '-e', masquerade, '-c', 'whoami']
+    common.execute([*commands], timeout=5, kill=True)
+    common.log("Cleaning...")
+    common.remove_file(masquerade)
+    common.remove_file(masquerade2)
+    common.log("Simulation successfull!")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

rules/cross-platform/execution_aws_ssm_sendcommand_with_command_parameters.toml

@@ -1,8 +1,8 @@
 [metadata]
 creation_date = "2022/09/03"
-integration = ["endpoint"]
+integration = ["endpoint", "auditd_manager"]
 maturity = "production"
-updated_date = "2024/09/10"
+updated_date = "2024/09/23"
 
 [rule]
 author = ["Elastic"]

rules/windows/command_and_control_new_terms_commonly_abused_rat_execution.toml

@@ -1,8 +1,8 @@
 [metadata]
 creation_date = "2023/04/03"
-integration = ["endpoint", "windows"]
+integration = ["endpoint", "windows", "system"]
 maturity = "production"
-updated_date = "2024/08/07"
+updated_date = "2024/09/23"
 
 [rule]
 author = ["Elastic"]

rules/windows/command_and_control_rdp_tunnel_plink.toml

@@ -1,10 +1,10 @@
 [metadata]
 creation_date = "2020/10/14"
-integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender"]
+integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender", "system"]
 maturity = "production"
 min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
 min_stack_version = "8.14.0"
-updated_date = "2024/10/15"
+updated_date = "2024/10/17"
 
 [rule]
 author = ["Elastic"]

rules/windows/command_and_control_screenconnect_childproc.toml

@@ -1,10 +1,10 @@
 [metadata]
 creation_date = "2024/03/27"
-integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender"]
+integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender", "system"]
 maturity = "production"
 min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
 min_stack_version = "8.14.0"
-updated_date = "2024/10/15"
+updated_date = "2024/10/17"
 
 [rule]
 author = ["Elastic"]

rules/windows/command_and_control_tunnel_vscode.toml

@@ -1,10 +1,10 @@
 [metadata]
 creation_date = "2024/09/09"
-integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender"]
+integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender", "system"]
 maturity = "production"
 min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
 min_stack_version = "8.14.0"
-updated_date = "2024/10/15"
+updated_date = "2024/10/17"
 
 [rule]
 author = ["Elastic"]