Sophisticated Cyber Attack Campaign Targets Insecure SQL Servers
A sophisticated cyber attack campaign is underway, targeting inadequately secured Microsoft SQL servers. The campaign, which uses the XiebroC2 command-and-control framework, demonstrates a methodical approach to privilege escalation through the deployment of JuicyPotato. Little is known about the organisation behind the attacks or the development of XiebroC2.
The campaign follows a predictable pattern, beginning with credential-based intrusions. Attackers exploit vulnerable credentials on publicly accessible database servers to gain initial access. They then escalate privileges using JuicyPotato, exploiting specific token privileges to elevate access from service-level to administrative privileges. Once privileges are escalated, attackers proceed to download and execute the XiebroC2 framework using PowerShell commands. XiebroC2 provides attackers with comprehensive remote control capabilities, similar to CobaltStrike, allowing them to gain persistent access to compromised systems. The campaign progresses to coin mining operations, with SEC analysts confirming the deployment of XiebroC2 alongside traditional coin mining payloads.
The integration of XiebroC2 represents a significant escalation in attack sophistication, supporting cross-platform operations. The campaign highlights the importance of proper credential management and server security. Further investigation is needed to identify the organisation behind the attacks and the development of XiebroC2.
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