Chisel (Malware Family) By Fraunhofer FKIE Archived: 2026-04-05 18:48:40 UTC elf.chisel (Back to overview) Chisel Chisel is an open-source project by Jaime Pillora (jpillora) that allows tunneling TCP and UDP connections via HTTP. It is available across platforms and written in Go. While benign in itself, Chisel has been utilized by multiple threat actors. It was for example observed by SentinelOne during a PYSA ransomware campaign to achieve persistence and used as backdoor. Github: https://github.com/jpillora/chisel References 2022-04-18 ⋅ SentinelOne ⋅ James Haughom From the Front Lines | Peering into A PYSA Ransomware Attack Chisel Chisel Cobalt Strike Mespinoza There is no Yara-Signature yet. Source: https://malpedia.caad.fkie.fraunhofer.de/details/elf.chisel https://malpedia.caad.fkie.fraunhofer.de/details/elf.chisel Page 1 of 1