Incident Score: Analysis & Impact (CITVMW1776702564)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of VMware's Vulnerability and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts VMware Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the VMware breach identified under incident ID CITVMW1776702564.
The analysis begins with a detailed overview of VMware's information like the linkedin page: https://www.linkedin.com/company/vmware, the number of followers: 2049076, the industry type: Software Development and the number of employees: 12343 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 205 and after the incident was 201 with a difference of -4 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on VMware and their customers.
A newly reported cybersecurity incident, "Threat Actors Weaponize QEMU as Covert Backdoor for Ransomware and Credential Theft", has drawn attention.
Cybercriminals are increasingly abusing QEMU, a legitimate open-source virtualization tool, to bypass endpoint security and deploy ransomware or steal credentials undetected.
The disruption is felt across the environment, affecting VMware and ESXi hypervisors and Windows systems with QEMU, and exposing credentials and Active Directory enumeration data.
Formal response steps have not been shared publicly yet.
Overall, the incident is a reminder of why proactive monitoring and strong governance matter.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating citrixBleed2 vulnerability (CVE-2025-5777) for initial access and Command and Scripting Interpreter: Windows Command Shell (T1059.003) with moderate to high confidence (80%), supported by evidence indicating scheduled task (TPMProfiler) running QEMU under SYSTEM account. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating booting from disguised virtual disk (vault.db, bisrv.dll) and System Services: Service Execution (T1569.002) with moderate to high confidence (80%), supported by evidence indicating scheduled task (TPMProfiler) running QEMU under SYSTEM account. Under the Persistence tactic, the analysis identified Scheduled Task/Job: Scheduled Task (T1053.005) with high confidence (90%), supported by evidence indicating scheduled task (TPMProfiler) running QEMU under SYSTEM account and Create or Modify System Process: Windows Service (T1543.003) with moderate to high confidence (70%), supported by evidence indicating malicious ScreenConnect client for persistence. Under the Privilege Escalation tactic, the analysis identified Process Injection (T1055) with moderate confidence (60%), supported by evidence indicating qEMU running under SYSTEM account for privilege escalation. Under the Defense Evasion tactic, the analysis identified Hide Artifacts: Run Virtual Instance (T1564.006) with high confidence (95%), supported by evidence indicating abusing QEMU to bypass endpoint security via hidden VMs, Masquerading: Match Legitimate Name or Location (T1036.005) with moderate to high confidence (80%), supported by evidence indicating disguised virtual disk (vault.db, bisrv.dll), and Indicator Removal: Timestomp (T1070.006) with moderate confidence (50%), supported by evidence indicating minimal forensic traces due to VM-based activity. Under the Credential Access tactic, the analysis identified Adversary-in-the-Middle: LLMNR/NBT-NS Poisoning and SMB Relay (T1557.001) with moderate to high confidence (70%), supported by evidence indicating impacket, KrbRelayX, BloodHound.py used for credential harvesting and OS Credential Dumping: LSASS Memory (T1003.001) with moderate confidence (60%), supported by evidence indicating tools inside VM (Impacket, NetExec) for credential theft. Under the Discovery tactic, the analysis identified Account Discovery: Domain Account (T1087.002) with moderate to high confidence (80%), supported by evidence indicating bloodHound.py for Active Directory enumeration and Remote System Discovery (T1018) with moderate to high confidence (70%), supported by evidence indicating netExec for network enumeration. Under the Lateral Movement tactic, the analysis identified Remote Services: Remote Desktop Protocol (T1021.001) with moderate confidence (60%), supported by evidence indicating reverse SSH tunnel via custom ports (32567, 22022) and Lateral Tool Transfer (T1570) with moderate to high confidence (70%), supported by evidence indicating fTP used to stage payloads inside QEMU VM. Under the Command and Control tactic, the analysis identified Ingress Tool Transfer (T1105) with moderate to high confidence (80%), supported by evidence indicating adaptixC2, Linker2, WireGuard obfuscator (wg-obfuscator) inside VM and Protocol Tunneling (T1572) with high confidence (90%), supported by evidence indicating reverse SSH tunnel via custom ports (32567, 22022). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating credentials and AD enumeration data harvested via VM. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating payoutsKing ransomware deployed via QEMU VM. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- VMware Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/vmware/incident/CITVMW1776702564
- VMware CyberSecurity Rating page: https://www.rankiteo.com/company/vmware
- VMware Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/citvmw1776702564-citrix-vmware-vulnerability-november-2025/
- VMware CyberSecurity Score History: https://www.rankiteo.com/company/vmware/history
- VMware CyberSecurity Incident Source: https://cybersecuritynews.com/attackers-turn-qemu-into-a-stealth-backdoor/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf