YES BANK Breach Incident Score: Analysis & Impact (BOOYES1772152662)

In this Rankiteo incident briefing, we review the YES BANK breach identified under incident ID BOOYES1772152662.

The analysis begins with a detailed overview of YES BANK's information like the linkedin page: https://www.linkedin.com/company/yes-bank, the number of followers: 1456363, the industry type: Banking and the number of employees: 37997 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 761 and after the incident was 735 with a difference of -26 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 YES BANK and their customers.

Yes Bank recently reported "Yes Bank Investigates Massive Fraud Involving Unauthorized Overseas Transactions", a noteworthy cybersecurity incident.

Yes Bank, one of India’s leading financial institutions, is probing a large-scale fraud involving unauthorized transactions on customers’ foreign exchange (forex) cards.

The disruption is felt across the environment, affecting Foreign exchange (forex) card transactions, plus an estimated financial loss of $280,000.

Formal response steps have not been shared publicly yet.

The case underscores how Ongoing.

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.

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 Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating unauthorized transactions on customers’ foreign exchange (forex) cards and Trusted Relationship (T1199) with moderate confidence (60%), supported by evidence indicating bookMyForex, a forex services platform associated with the transactions. Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate to high confidence (70%), supported by evidence indicating whether internal or external vulnerabilities were exploited and Modify Authentication Process (T1556) with moderate confidence (50%), supported by evidence indicating unauthorized access occurred. Under the Lateral Movement tactic, the analysis identified Remote Services (T1021) with moderate confidence (60%), supported by evidence indicating illicit overseas transactions. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate confidence (50%), supported by evidence indicating payment information risk such as High. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating illicit overseas transactions. Under the Impact tactic, the analysis identified Resource Hijacking (T1496) with moderate to high confidence (80%), supported by evidence indicating collective losses of around $280,000 from illicit overseas transactions. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.