S0591 · tool · ATT&CK software
ConnectWise
3 actors on record using it
Every mark is an actor ATT&CK records using this software. Red ones also exploit a CVE in CISA KEV.
Open S0591 on attack.mitre.orgConnectWise is a legitimate remote administration tool that has been used since at least 2016 by threat actors including MuddyWater and GOLD SOUTHFIELD to connect to and conduct lateral movement in target environments.
Source: MITRE ATT&CK, S0591. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
- Also known as
- ScreenConnect
Every one of the 3 is a mark on the map. Named now: 1 to 3, most on record first.
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: MITRE ATT&CK (© The MITRE Corporation, reproduced and distributed with its permission), the MISP Galaxy (CC0), and CyberSIXT's own coverage.