Function TestSimpleSequence

pkg/rules/sequence_test.go:188–271

(t *testing.T)

}

func TestSimpleSequence(t *testing.T) {
	log.SetLevel(log.DebugLevel)

	c := &config.FilterConfig{Name: "Command shell created a temp file"}
	f := filter.New(`
	sequence
	maxspan 100ms
  	|evt.name = 'CreateProcess' and ps.name = 'cmd.exe'| by ps.exe
  	|evt.name = 'CreateFile' and file.path icontains 'temp'| by file.path
	`, &config.Config{EventSource: config.EventSourceConfig{EnableFileIOEvents: true}, Filters: &config.Filters{}})
	require.NoError(t, f.Compile())

	ss := newSequenceState(f, c, new(ps.SnapshotterMock))

	var tests = []struct {
		evts    []*event.Event
		matches []bool
	}{
		{[]*event.Event{{
			Type:      event.CreateProcess,
			Name:      "CreateProcess",
			Timestamp: time.Now(),
			Tid:       2484,
			PID:       859,
			PS: &pstypes.PS{
				Name: "cmd.exe",
				Exe:  "C:\\Windows\\system32\\svchost-temp.exe",
			},
			Params: event.Params{
				params.ProcessID: {Name: params.ProcessID, Type: params.Uint32, Value: uint32(4143)},
			},
			Metadata: map[event.MetadataKey]any{"foo": "bar", "fooz": "barzz"},
		}, {
			Type:      event.CreateFile,
			Name:      "CreateFile",
			Timestamp: time.Now().Add(time.Second),
			Tid:       2484,
			PID:       859,
			Category:  event.File,
			PS: &pstypes.PS{
				Name: "cmd.exe",
			},
			Params: event.Params{
				params.FilePath: {Name: params.FilePath, Type: params.UnicodeString, Value: "C:\\Windows\\system32\\svchost-temp.exe"},
			},
			Metadata: map[event.MetadataKey]any{"foo": "bar", "fooz": "barzz"}}}, []bool{false, true}},
		{[]*event.Event{{
			Type:      event.CreateProcess,
			Name:      "CreateProcess",
			Timestamp: time.Now(),
			Tid:       2484,
			PID:       859,
			PS: &pstypes.PS{
				Name: "cmd.exe",
				Exe:  "C:\\Windows\\system32\\cmd.exe",
			},
			Params: event.Params{
				params.ProcessID: {Name: params.ProcessID, Type: params.Uint32, Value: uint32(4143)},