adding event on netcat rce in container

Signed-off-by: h4l0gen <ks3913688@gmail.com>

events/syscall/netcat_remote_code_execution_in_container.go

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: Apache-2.0
+/*
+Copyright (C) 2024 The Falco Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package syscall
+
+import (
+    "os/exec"
+
+    "github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(NetcatRemoteCodeExecutionInContainer)
+
+func NetcatRemoteCodeExecutionInContainer(h events.Helper) error {
+    if h.InContainer() {
+        // Launch netcat (nc) with the -e flag for remote code execution
+        cmd := exec.Command("nc", "-e", "/bin/bash")
+
+        h.Log().Info("Netcat runs inside container that allows remote code execution")
+        err := cmd.Run()
+        if err != nil {
+            h.Log().WithError(err).Error("Failed to launch netcat (nc) for remote code execution")
+            return err
+        }
+    } 
+
+    return nil
+}