From 08fc5a5e35fb1a633812db39b001e26e562d3eed Mon Sep 17 00:00:00 2001
From: protections machine
 <72879786+protectionsmachine@users.noreply.github.com>
Date: Wed, 23 Oct 2024 17:13:10 +1100
Subject: [PATCH] Sync RTA Bind Shell via Node (#4184)

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
---
 rta/linux_execution_bind_shell_via_node.py | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 rta/linux_execution_bind_shell_via_node.py

diff --git a/rta/linux_execution_bind_shell_via_node.py b/rta/linux_execution_bind_shell_via_node.py
new file mode 100644
index 000000000..8d53995fd
--- /dev/null
+++ b/rta/linux_execution_bind_shell_via_node.py
@@ -0,0 +1,40 @@
+# 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="1ab728b4-1c06-4be4-a834-7893f1e9a26e",
+    platforms=["linux"],
+    endpoint=[
+        {
+            "rule_name": "Bind Shell via Node",
+            "rule_id": "08697d36-4c07-4f54-b177-a39e473705c0",
+        },
+    ],
+    techniques=["T1059", "T1071"],
+)
+
+
+@common.requires_os(*metadata.platforms)
+def main() -> None:
+    common.log("Creating a fake executable..")
+    masquerade = "/tmp/node"
+
+    source = common.get_path("bin", "linux.ditto_and_spawn")
+    common.copy_file(source, masquerade)
+    common.log("Granting execute permissions...")
+    common.execute(["chmod", "+x", masquerade])
+
+    commands = [masquerade, '-e', 'spawnsh', 'listen']
+    common.execute([*commands], timeout=5, kill=True)
+    common.log("Cleaning...")
+    common.remove_file(masquerade)
+    common.log("Simulation successfull!")
+
+
+if __name__ == "__main__":
+    sys.exit(main())