Function TestUnconstrainedSequenceMatches

pkg/rules/sequence_test.go:382–467

(t *testing.T)

}

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

	c := &config.FilterConfig{Name: "Command shell created a temp file"}
	f := filter.New(`
	sequence
  maxspan 200ms
    |evt.name = 'CreateProcess' and ps.name = 'cmd.exe'|
    |evt.name = 'CreateFile' and file.path icontains 'temp'|
	`, &config.Config{EventSource: config.EventSourceConfig{EnableFileIOEvents: true}, Filters: &config.Filters{}})
	require.NoError(t, f.Compile())

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

	e1 := &event.Event{
		Seq:       20,
		Type:      event.CreateProcess,
		Timestamp: time.Now().Add(time.Second),
		Name:      "CreateProcess",
		Tid:       2484,
		PID:       859,
		PS: &pstypes.PS{
			Name: "cmd.exe",
			Exe:  "C:\\Windows\\System32\\cmd.exe",
			PID:  859,
			Parent: &pstypes.PS{
				Name: "WmiPrvSE.exe",
			},
		},
		Params: event.Params{
			params.ProcessID: {Name: params.ProcessID, Type: params.PID, Value: uint32(859)},
		},
		Metadata: map[event.MetadataKey]any{"foo": "bar", "fooz": "barzz"},
	}
	e2 := &event.Event{
		Seq:       21,
		Type:      event.CreateProcess,
		Timestamp: time.Now().Add(time.Second * 2),
		Name:      "CreateProcess",
		Tid:       2484,
		PID:       1859,
		PS: &pstypes.PS{
			Name: "cmd.exe",
			Exe:  "C:\\Windows\\System32\\cmd.exe",
			PID:  1859,
			Parent: &pstypes.PS{
				Name: "svchost.exe",
			},
		},
		Params: event.Params{
			params.ProcessID: {Name: params.ProcessID, Type: params.PID, Value: uint32(859)},
		},
		Metadata: map[event.MetadataKey]any{"foo": "bar", "fooz": "barzz"},
	}
	e3 := &event.Event{
		Type:      event.CreateFile,
		Seq:       25,
		Timestamp: time.Now().Add(time.Second * 3),