ConnectWise

MITRE ATT&CK: S0591 View on attack.mitre.org

Aliases: ScreenConnect, ConnectWise

First seen
2016-01-01 00:00:00
Malware type
rat
Operating systems
windows
Related IoCs
1601 (1459 malicious)
Last IoC activity
2026-10-18 00:36:41
Profile updated
2026-07-07 12:52:16

Targeted industries: government-and-public-sector financial-services healthcare-and-pharmaceutical technology-and-telecommunications

Context

ConnectWise 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.

Recent IoC activity

1,459 malicious indicators in Maltiverse are attributed to ConnectWise (S0591). The 20 most recently updated:

TypeIndicatorUpdatedSources
hostname statsonlineviewin.com 2026-10-18 2
hostname pub-0a6599d7d6394e379b6da3d6bfb5354a.r2.dev 2026-10-18 1
hostname cloudsynn.com 2026-10-18 1
hostname blueowlcapital.us 2026-10-17 1
file sample support.client.exe 2026-10-17 3
file sample ScreenConnect.ClientSetup.exe 2026-10-17 4
file sample d294acac443dd491.bin 2026-10-17 1
hostname tevnt.com 2026-10-17 1
file sample 1f01ff480f1e0efd0361c7647b1d8de8b8a0b086a4864fe7d65f1ab8f1997c31 2026-10-16 2
file sample ZoomInstallerFull.js 2026-10-16 1
IP address 38.240.59.97 2026-10-16 1
file sample f159200384c4bf0f22ddd1d58ccd7c97fc1da83d2840f9423267a30ce74909ef 2026-10-16 1
file sample 9720400436419b66563adff2d10478390ef4ae6a64c2d6f9e928c87e24ea5c04 2026-10-16 1
file sample 7fc40521b04dfd962769606fa843542b003bd1d06c2d6eb8f526d615e020d286 2026-10-16 1
file sample 2f5b9d79715c6738a1384db2016270de7c1c503284abb4365a338d6a7aaf8b52 2026-10-16 2
file sample 51c23cd7ae3be097ad412657d6e03b4794fbc19853da07f24609fb7148610a5f 2026-10-16 3
file sample SSA-Statement#633d80b3bb2a.js 2026-10-16 1
file sample support.client.exe 2026-10-16 3
file sample 6b79cc7d38340106.bin 2026-10-16 1
file sample 7cecbbaf7aee1c3865871ee304971587aa544340fd9a61e3d18f60279ae74af5 2026-10-14 1

Detection coverage

  • 10 YARA rules
  • 189 Sigma rules

Malware & tools used

  • Video Capture (attack-pattern)
  • PowerShell (attack-pattern)
  • Screen Capture (attack-pattern)

Used by threat actors

Detection rules

  • SIGNATURE_BASE_Connectwise_Screenconnect_Authentication_Bypass_Feb_2024_Exploitation_IIS_Logs (yara-rule)
  • SIGNATURE_BASE_SUSP_Screenconnect_User_Poc_Com_Unused_Feb24 (yara-rule)
  • SIGNATURE_BASE_SUSP_Screenconnect_User_Poc_Com_Used_Feb24 (yara-rule)
  • SIGNATURE_BASE_SUSP_Screenconnect_Exploitation_Artefacts_Feb24 (yara-rule)
  • SIGNATURE_BASE_SUSP_MAL_Signingcert_Feb24_1 (yara-rule)
  • SIGNATURE_BASE_MAL_CS_Loader_Feb24_1 (yara-rule)
  • SIGNATURE_BASE_MAL_RANSOM_Lockbit_Indicators_Feb24 (yara-rule)
  • SIGNATURE_BASE_MAL_MSI_Mpyutils_Feb24_1 (yara-rule)
  • SIGNATURE_BASE_MAL_Beacon_Unknown_Feb24_1 (yara-rule)
  • DITEKSHEN_INDICATOR_RMM_Connectwise_Screenconnect_CERT (yara-rule)

Reports & references

  • anomali.com — Probable Iranian Cyber Actors Static Kitten Conducting Cyberespionage Campaign Targeting Uae And Kuwait Government Agencies (report)
  • Trend Micro — Earth Vetala Muddywater Continues To Target Organizations In T (report)
  • MITRE ATT&CK — S0591 (report)

External references