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Breach

ConnectWise investigates active campaign abusing compromised ScreenConnect environments

ConnectWise is investigating an active malware campaign that targets managed service providers, according to the report.

SZB-7ade08c64f

Written by a model from the sources below. Verify against them.

Sources2Corroborated
Vendor
ConnectWise
Product
ScreenConnect
Status
Corroborated
Disclosed

Summary

The campaign reportedly uses compromised ScreenConnect environments to install rogue remote-access clients on customer devices, and the report says dozens of organizations may be affected.

What to do

  • Audit ScreenConnect instances for unrecognized users, sessions, and remote-access clients

  • Check endpoints for unexpected ScreenConnect or remote-access software installations

  • Rotate ScreenConnect and related administrative credentials

  • Restrict ScreenConnect access to trusted networks and enforce MFA

Timeline

  1. Made public by BleepingComputer
  2. First seen by cve.now

Evidence 2

  1. Social
    r/sysadmin
    “their MSP told them today that Connectise got breached globally”
  2. Press
    BleepingComputer
    “ConnectWise is investigating an active malware campaign targeting managed service providers (MSPs) that uses compromised ScreenConnect environments to deploy rogue remote-access clients to customer devices.”

Corrections

None so far.

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Questions about the ConnectWise breach

Was ConnectWise breached?

BleepingComputer reports it. No statement from ConnectWise has reached cve.now yet.

What should ConnectWise customers do?

Audit ScreenConnect instances for unrecognized users, sessions, and remote-access clients. Check endpoints for unexpected ScreenConnect or remote-access software installations. Rotate ScreenConnect and related administrative credentials. Restrict ScreenConnect access to trusted networks and enforce MFA.