[h=1]Now ISIS is under attack from guerrillas itself: Ultra-secret White Shroud group strike fear into terrorists by picking off fighters one by one[/h]
- Small groups of Syrians are hunting down ISIS fighters in Syrian stronghold
- New guerrilla campaign has emerged in response to ISIS's growing brutality
- White Shroud 'has killed more than 100 ISIS fighters in attacks in Deir al-Zor'
- Head of group Abu Aboud says its main aim is to generate fear in ISIS ranks