Incident Score: Analysis & Impact (STR1779114633)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Stryker's Cyber Attack 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 Stryker 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 Stryker breach identified under incident ID STR1779114633.
The analysis begins with a detailed overview of Stryker's information like the linkedin page: https://www.linkedin.com/company/stryker, the number of followers: 1694532, the industry type: Medical Equipment Manufacturing and the number of employees: 50225 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 818 and after the incident was 795 with a difference of -23 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 Stryker and their customers.
European hospitals (general) recently reported "European Hospitals Face Escalating Cyber Threats to Patient Care", a noteworthy cybersecurity incident.
A new report from Black Book Research highlights a stark shift in the cybersecurity risks facing European hospitals, where attacks are no longer just about data breaches or IT disruptions but now pose direct threats to clinical operations.
The disruption is felt across the environment, affecting Electronic Health Record (EHR), emergency departments and ICUs.
In response, while recovery efforts such as ransomware recovery and immutable backups continue.
The case underscores how teams are taking away lessons such as Cyberattacks on healthcare are evolving from financial extortion to direct sabotage of clinical operations, requiring investments in clinical continuity, identity and access management, ransomware recovery, and resilience training. Full clinical downtime simulations are critically lacking, and prolonged downtime beyond 48 hours risks patient safety, and recommending next steps like Prioritize identity and access management (IAM, PAM, SSO failover), Boost ransomware recovery and immutable backups and Adopt zero trust and network segmentation.
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 moderate confidence (60%), supported by evidence indicating aging infrastructure, cross-border supplier networks, cloud migration risks, Trusted Relationship (T1199) with moderate to high confidence (70%), supported by evidence indicating third-party dependencies exploited by attackers, and Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating authentication failures exploited by attackers. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate confidence (50%), supported by evidence indicating fragile clinical processes targeted by attackers. Under the Persistence tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating authentication failures exploited for persistence. Under the Privilege Escalation tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating authentication failures exploited for privilege escalation. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (60%), supported by evidence indicating destructive attack on medical tech firm Stryker and Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating authentication failures exploited to evade defenses. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (80%), supported by evidence indicating ransomware attack on NHS pathology provider Synnovis, Service Stop (T1489) with high confidence (90%), supported by evidence indicating disruption of clinical operations, medication reconciliation, lab results, and Defacement (T1491) with lower confidence (40%), supported by evidence indicating destructive attack on medical tech firm Stryker. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (50%), supported by evidence indicating financial extortion motivation in ransomware attacks. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Stryker Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/stryker/incident/STR1779114633
- Stryker CyberSecurity Rating page: https://www.rankiteo.com/company/stryker
- Stryker Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/str1779114633-stryker-cyber-attack-january-2024/
- Stryker CyberSecurity Score History: https://www.rankiteo.com/company/stryker/history
- Stryker CyberSecurity Incident Source: https://www.itpro.com/security/hospital-cyber-attacks-are-increasingly-hitting-patient-care
- 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