Added event for default stable rule "Remove Bulk Data from Disk"

events/syscall/remove_bulk_data_from_disk.go

@@ -0,0 +1,40 @@
+// 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"
+	"os/exec"
+
+	"github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(RemoveBulkDataFromDisk)
+
+func RemoveBulkDataFromDisk(h events.Helper) error {
+	// Creates temporary data for testing, avoiding critical file deletion.
+	filename := "/created-by-falco-event-generator"
+	defer os.RemoveAll(filename) // clean up
+	if err := os.WriteFile(filename, []byte("bulk data content"), os.FileMode(0755)); err != nil {
+		return err
+	}
+
+	h.Log().Infof("attempting to run shred command to remove bulk data from disk")
+	// Rule triggers regardless of whether the 'shred' utility exists
+	// Therefore, there's no need to skip the action even if 'shred' does not exist
+	cmd := exec.Command("shred", "-u", filename)
+	err := cmd.Run()
+	return err
+}