October 10, 2024 at 12:05PM
The Underground ransomware gang attacked Casio on October 5, disrupting services and potentially compromising personal and confidential data. The group leaked sensitive information on the dark web, including employee data and financial documents. Casio is investigating the breach but has not confirmed the claims. The group targets Windows systems since July 2023.
### Meeting Takeaways
1. **Casio Attack Overview:**
– The Underground ransomware gang has claimed responsibility for an attack on Casio on October 5, causing significant system disruptions.
2. **Data Leak Details:**
– Casio has acknowledged the attack but has not provided extensive details. They are currently investigating with external IT specialists to assess potential data theft.
– The data leaked includes:
– Confidential documents
– Legal documents
– Personal employee data
– Non-disclosure agreements (NDA)
– Employee payroll information
– Patent information
– Company financial documents
– Project information
– Incident reports
3. **Impact Assessment:**
– If the data leak is confirmed, it poses a serious risk to Casio’s workforce and intellectual property, potentially harming the company’s business operations.
4. **Ongoing Communications:**
– BleepingComputer has reached out for comments from Casio about the claims and data leak but has yet to receive a response.
5. **Ransomware Background:**
– Underground is a relatively new ransomware operation that has been active since July 2023, targeting Windows systems.
– It is linked to the Russian cybercrime group known as RomCom and exploits vulnerabilities in Microsoft Office for attacks.
6. **Attack Methodology:**
– The ransomware works by maintaining access to systems after user disconnection, avoiding file extension changes to encrypted files, and deleting shadow copies to complicate data recovery.
– It also targets MS SQL Server services to facilitate data theft.
7. **Data Exposure Tactics:**
– Underground employs unique tactics by leaking stolen data on Mega and promoting these links via Telegram, which enhances the visibility and distribution of compromised information.
8. **Victim Pool:**
– The extortion portal of Underground currently lists 17 victims, primarily from the USA. Future attack patterns related to Casio’s incident remain uncertain.
### Next Steps
– Monitor developments regarding Casio’s response and the investigation into the attack.
– Evaluate any necessary actions to secure sensitive data and enhance cybersecurity measures in the wake of these events.