Incident Score: Analysis & Impact (ASU1777551827)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of ASUSTOR Inc.'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 ASUSTOR Inc. 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 ASUSTOR Inc. breach identified under incident ID ASU1777551827.
The analysis begins with a detailed overview of ASUSTOR Inc.'s information like the linkedin page: https://www.linkedin.com/company/asustor-inc-, the number of followers: 1508, the industry type: Computer Networking Products and the number of employees: 88 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 708 and after the incident was 703 with a difference of -5 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 ASUSTOR Inc. and their customers.
ASUSTOR recently reported "Critical Zero-Day Exploit in ASUSTOR ADM PPTP VPN Client Exposes NAS Devices to Root-Level Attacks", a noteworthy cybersecurity incident.
A proof-of-concept (PoC) exploit has been released for CVE-2026-6644, a now-patched critical zero-day vulnerability in ASUSTOR’s ADM PPTP VPN Client.
The disruption is felt across the environment, affecting ASUSTOR NAS devices running vulnerable ADM versions, and exposing Potential data exfiltration.
In response, moved swiftly to contain the threat with measures like Updating to ADM 5.1.3.RGO1 or later, Blocking WAN access to the ADM management interface and Changing default credentials, and began remediation that includes Patch released in ADM 5.1.3.RGO1 (AS-2026-006).
The case underscores how and recommending next steps like Update to ADM 5.1.3.RGO1 or later, Block WAN access to the ADM management interface and Change default credentials.
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%), with evidence including critical Zero-Day Exploit in ASUSTOR ADM PPTP VPN Client, and 19,000 internet-facing ASUSTOR NAS hosts and Valid Accounts: Default Accounts (T1078.001) with high confidence (95%), with evidence including default credentials (`admin/admin`), and authenticated administrators to execute arbitrary commands. Under the Execution tactic, the analysis identified Command and Scripting Interpreter: Unix Shell (T1059.004) with high confidence (90%), with evidence including oS command injection flaw in `/portal/apis/settings/vpn.cgi`, and executes the parameter via `/bin/sh`. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with high confidence (90%), with evidence including execute arbitrary commands with root privileges, and root-level command execution. Under the Persistence tactic, the analysis identified Server Software Component: Web Shell (T1505.003) with moderate to high confidence (70%), supported by evidence indicating malware deployment, persistence mechanisms. Under the Defense Evasion tactic, the analysis identified Modify Registry (T1112) with moderate confidence (60%), supported by evidence indicating pppd configuration file written without proper input validation. Under the Credential Access tactic, the analysis identified Valid Accounts: Default Accounts (T1078.001) with high confidence (95%), supported by evidence indicating default credentials (`admin/admin`). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), with evidence including potential data exfiltration, and full system compromise. Under the Impact tactic, the analysis identified Resource Hijacking (T1496) with moderate to high confidence (80%), supported by evidence indicating dDoS infrastructure setup and Data Destruction (T1485) with moderate confidence (60%), supported by evidence indicating full system compromise, malware deployment. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- ASUSTOR Inc. Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/asustor-inc-/incident/ASU1777551827
- ASUSTOR Inc. CyberSecurity Rating page: https://www.rankiteo.com/company/asustor-inc-
- ASUSTOR Inc. Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/asu1777551827-asustor-vulnerability-january-2026/
- ASUSTOR Inc. CyberSecurity Score History: https://www.rankiteo.com/company/asustor-inc-/history
- ASUSTOR Inc. CyberSecurity Incident Source: https://cyberpress.org/poc-released-asustor-adm-root-rce/
- 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