Multi-Stage Intrusion Campaign Targets Exposed Servers

Microsoft has uncovered a complex cyber attack involving the exploitation of SolarWinds Web Help Desk (WHD) instances exposed to the internet. The threat actors leveraged these vulnerabilities to gain initial access and subsequently move laterally across the organization's network, targeting high-value assets.

The Microsoft Defender Security Research Team reported that the intrusion was multi-staged, with the attackers exploiting weaknesses in the SolarWinds Web Help Desk to establish a foothold within the organization.

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  • Exploitation of internet-exposed SolarWinds Web Help Desk instances for initial access
  • Lateral movement across the network to target high-value assets
  • Potential for further exploitation and data breaches

While the Microsoft Defender Security Research Team did not confirm whether the activity exploited recent vulnerabilities, the incident highlights the importance of securing internet-exposed servers and keeping software up to date to prevent similar attacks.

It takes 20 years to build a reputation and a few minutes of cyber-incident to ruin it.

Stephane Nappo