diff --git a/etc/snapshot_etc.go b/etc/snapshot_etc.go
new file mode 100644
index 0000000..9a25d5a
--- /dev/null
+++ b/etc/snapshot_etc.go
@@ -0,0 +1,186 @@
+// Copyright 2021 The Android Open Source Project
+//
+// 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 etc
+
+// This file implements snapshot module of 'prebuilt_etc' type
+// 'snapshot_etc' module defines android.PrebuiltInterface so it can be handled
+// as prebuilt of 'prebuilt_etc' type.
+// Properties of 'snapshot_etc' follows properties from snapshotJsonFlags type
+
+import (
+	"android/soong/android"
+	"fmt"
+	"strings"
+
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
+)
+
+func RegisterSnapshotEtcModule(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("snapshot_etc", SnapshotEtcFactory)
+}
+
+func init() {
+	RegisterSnapshotEtcModule(android.InitRegistrationContext)
+}
+
+// snapshot_etc is a prebuilt module type to be installed under etc which is auto-generated by
+// development/vendor_snapshot/update.py. This module will override prebuilt_etc module with same
+// name when 'prefer' property is true.
+func SnapshotEtcFactory() android.Module {
+	module := &SnapshotEtc{}
+	module.AddProperties(&module.properties)
+
+	var srcsSupplier = func(_ android.BaseModuleContext, prebuilt android.Module) []string {
+		s, ok := prebuilt.(*SnapshotEtc)
+		if !ok || s.properties.Src == nil {
+			return []string{}
+		}
+
+		return []string{*s.properties.Src}
+	}
+
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
+	android.InitPrebuiltModuleWithSrcSupplier(module, srcsSupplier, "src")
+	return module
+}
+
+type snapshotEtcProperties struct {
+	Src                   *string `android:"path,arch_variant"` // Source of snapshot_etc file
+	Filename              *string `android:"arch_variant"`      // Target file name when it differs from module name
+	Relative_install_path *string `android:"arch_variant"`      // Relative install path when it should be installed subdirectory of etc
+}
+
+type SnapshotEtc struct {
+	android.ModuleBase
+	prebuilt   android.Prebuilt
+	properties snapshotEtcProperties
+
+	outputFilePath android.OutputPath
+	installDirPath android.InstallPath
+}
+
+func (s *SnapshotEtc) Prebuilt() *android.Prebuilt {
+	return &s.prebuilt
+}
+
+func (s *SnapshotEtc) Name() string {
+	return s.prebuilt.Name(s.BaseModuleName())
+}
+
+func (s *SnapshotEtc) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	if s.properties.Src == nil {
+		ctx.PropertyErrorf("src", "missing prebuilt source file")
+		return
+	}
+
+	sourceFilePath := s.prebuilt.SingleSourcePath(ctx)
+
+	// Determine the output file basename.
+	// If Filename is set, use the name specified by the property.
+	// Otherwise use the module name.
+	filename := proptools.String(s.properties.Filename)
+	if filename == "" {
+		filename = ctx.ModuleName()
+	}
+
+	s.outputFilePath = android.PathForModuleOut(ctx, filename).OutputPath
+
+	if strings.Contains(filename, "/") {
+		ctx.PropertyErrorf("filename", "filename cannot contain separator '/'")
+		return
+	}
+
+	subDir := ""
+	if s.properties.Relative_install_path != nil {
+		subDir = *s.properties.Relative_install_path
+	}
+
+	s.installDirPath = android.PathForModuleInstall(ctx, "etc", subDir)
+
+	// This ensures that outputFilePath has the correct name for others to
+	// use, as the source file may have a different name.
+	ctx.Build(pctx, android.BuildParams{
+		Rule:        android.Cp,
+		Input:       sourceFilePath,
+		Output:      s.outputFilePath,
+		Description: "Install snapshot etc module " + s.BaseModuleName(),
+	})
+
+	ctx.InstallFile(s.installDirPath, s.outputFilePath.Base(), sourceFilePath)
+}
+
+func (p *SnapshotEtc) AndroidMkEntries() []android.AndroidMkEntries {
+	return []android.AndroidMkEntries{{
+		Class:      "ETC",
+		OutputFile: android.OptionalPathForPath(p.outputFilePath),
+		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
+			func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
+				entries.SetString("LOCAL_MODULE_TAGS", "optional")
+				entries.SetString("LOCAL_MODULE_PATH", p.installDirPath.ToMakePath().String())
+				entries.SetString("LOCAL_INSTALLED_MODULE_STEM", p.outputFilePath.Base())
+			},
+		},
+	}}
+}
+
+type snapshotEtcDependencyTag struct {
+	blueprint.DependencyTag
+}
+
+var tag = snapshotEtcDependencyTag{}
+
+func (s *SnapshotEtc) CoreVariantNeeded(ctx android.BaseModuleContext) bool {
+	return !s.ModuleBase.InstallInRecovery() && !s.ModuleBase.InstallInRamdisk() &&
+		!s.ModuleBase.InstallInVendorRamdisk() && !s.ModuleBase.InstallInDebugRamdisk()
+}
+
+func (p *SnapshotEtc) RamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return p.ModuleBase.InstallInRamdisk()
+}
+
+func (p *SnapshotEtc) VendorRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return p.ModuleBase.InstallInVendorRamdisk()
+}
+
+func (p *SnapshotEtc) DebugRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return p.ModuleBase.InstallInDebugRamdisk()
+}
+
+func (p *SnapshotEtc) RecoveryVariantNeeded(ctx android.BaseModuleContext) bool {
+	return p.ModuleBase.InstallInRecovery()
+}
+
+func (p *SnapshotEtc) ExtraImageVariations(ctx android.BaseModuleContext) []string {
+	return nil
+}
+
+func (p *SnapshotEtc) SetImageVariation(ctx android.BaseModuleContext, variation string, module android.Module) {
+}
+
+func (p *SnapshotEtc) ImageMutatorBegin(ctx android.BaseModuleContext) {}
+
+func (p *SnapshotEtc) OutputFiles(tag string) (android.Paths, error) {
+	switch tag {
+	case "":
+		return android.Paths{p.outputFilePath}, nil
+	default:
+		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
+	}
+
+}
+
+var _ android.PrebuiltInterface = (*SnapshotEtc)(nil)
+var _ android.ImageInterface = (*SnapshotEtc)(nil)
+var _ android.OutputFileProducer = (*SnapshotEtc)(nil)