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Executive Summary:

New Linux malware has been discovered by a cybersecurity firm Volexity, and this new strain of malware is being referred to as DISGOMOJI. A Pakistan-based threat actor alias ‘UTA0137’ has been identified as having espionage aims, with its primary focus on Indian government entities.  Like other common forms of backdoors and botnets involved in different types of cyberattacks, DISGOMOJI, the malware  allows the use of commands to capture screenshots, search for files to steal, spread additional payloads, and transfer files. DISGOMOJI  uses Discord (messaging service)  for Command & Control (C2)  and uses emojis  for C2 communication. This malware targets Linux operating systems.

The DISCOMOJI Malware:  

• The DISGOMOJI malware opens a specific channel in a Discord server and every new channel corresponds to a new victim. This means that the attacker can communicate with the victim one at a time.

• This particular malware connects with the attacker-controlled Discord server using Emoji, a form of relay protocol. The attacker provides unique emojis as instructions, and the malware uses emojis as a feedback to the subsequent command status.

• For instance, the ‘camera with flash’ emoji is used to screenshots the device of the victim or to steal, the ‘fox’ emoji cracks all Firefox profiles, and the ‘skull’ emoji kills the malware process.

• This C2 communication is done using emojis to ensure messaging between infected contacts, and it is almost impossible for Discord to shut down the malware as it can always change the account details of Discord it is using once the maliciou server is blocked.

• The malware also has capabilities aside from the emoji-based C2 such as network probing, tunneling, and data theft that are needed to help the UTA0137 threat actor in achieving its espionage goals.

Specific emojis used for different commands by UTA0137:

• Camera with Flash (📸): Captures a picture of the target device’s screen as per the victim’s directions.

• Backhand Index Pointing Down (👇): Extracts files from the targeted device and sends them to the command channel in the form of attachments.

• Backhand Index Pointing Right (👉): This process involves sending a file found on the victim’s device to another web-hosted file storage service known as Oshi or oshi[. ]at.

• Backhand Index Pointing Left (👈): Sends a file from the victim’s device to transfer[. ]sh, which is an online service for sharing files on the Internet.

• Fire (🔥): Finds and transmits all files with certain extensions that exist on the victim’s device, such as *. txt, *. doc, *. xls, *. pdf, *. ppt, *. rtf, *. log, *. cfg, *. dat, *. db, *. mdb, *. odb, *. sql, *. json, *. xml, *. php, *. asp, *. pl, *. sh, *. py, *. ino, *. cpp, *. java,

• Fox (🦊): This works by compressing all Firefox related profiles in the affected device. 

• Skull (💀): Kills the malware process in windows using ‘os. Exit()’

• Man Running (🏃‍♂️):  Execute a command on a victim’s device. This command receives an argument, which is the command to execute.

• Index Pointing up (👆) : Upload a file to the victim's device. The file to upload is attached along with this emoji

Analysis:   

The analysis was carried out for one of the indicator of compromised SHA-256 hash file-  C981aa1f05adf030bacffc0e279cf9dc93cef877f7bce33ee27e9296363cf002.

It is found that most of the vendors have marked the file as trojan in virustotal and the graph explains the malicious nature of the contacted domains and IPs.

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Discord & C2 Communication  for UTA0137:

• Stealthiness: Discord is a well-known messaging platform used for different purposes, which means that sending any messages or files on the server should not attract suspicion. Such stealthiness makes it possible for UTA0137 to remain dormant for greater periods before launching an attack.

• Customization: UTA0137 connected to Discord is able to create specific channels for distinct victims on the server. Such a framework allows the attackers to communicate with each of the victims individually to make a process more accurate and efficient.

• Emoji-based protocol: For C2 communication, emojis really complicates the attempt that Discord might make to interfere with the operations of the malware. In case the malicious server gets banned, malware could easily be recovered, especially by using the Discord credentials from the C2 server.

• Persistence: The malware, as stated above, has the ability to perpetually exist to hack the system and withstand rebooting of systems so that the virus can continue to operate without being detected by the owner of the hacked system.

• Advanced capabilities: Other features of DISGOMOJI are the Network Map using Nmap scanner, network tunneling through Chisel and Ligolo and Data Exfiltration by File Sharing services. These capabilities thus help in aiding the espionage goals of UTA0137.

• Social engineering: The virus and the trojan can show the pop-up windows and prompt messages, for example the fake update for firefox and similar applications, where the user can be tricked into inputting the password.

• Dynamic credential fetching: The malware does not write the hardcoded values of the credentials in order to connect it to the discord server. This also inconveniences analysts as they are unable to easily locate the position of the C2 server.

• Bogus informational and error messages: They never show any real information or errors because they do not want one to decipher the malicious behavior easily.

Recommendations to mitigate the risk of UTA0137:

• Regularly Update Software and Firmware: It is essential to regularly update all the application software and firmware of different devices, particularly, routers, to prevent hackers from exploiting the discovered and disclosed flaws. This includes fixing bugs such as CVE-2024-3080 and CVE-2024-3912 on ASUS routers, which basically entails solving a set of problems.

• Implement Multi-Factor Authentication: There are statistics that show how often user accounts are attacked, it is important to incorporate multi-factor authentication to further secure the accounts.

• Deploy Advanced Malware Protection: Provide robust guard that will help the user recognize and prevent the execution of the DISGOMOJI malware and similar threats.

• Enhance Network Segmentation: Utilize stringent network isolation mechanisms that seek to compartmentalize the key systems and data from the rest of the network in order to minimize the attack exposure.

• Monitor Network Activity: Scanning Network hour to hour for identifying and handling the security breach and the tools such as Nmap, Chisel, Ligolo etc can be used.

• Utilize Threat Intelligence: To leverage advanced threats intelligence which will help you acquire knowledge on previous threats and vulnerabilities and take informed actions.

• Secure Communication Channels: Mitigate the problem of the leakage of developers’ credentials and ways of engaging with the discord through loss of contact to prevent abusing attacks or gaining control over Discord as an attack vector.

• Enforce Access Control: Regularly review and update the user authentication processes by adopting stricter access control measures that will allow only the right personnel to access the right systems and information.

• Conduct Regular Security Audits: It is important to engage in security audits periodically in an effort to check some of the weaknesses present within the network or systems.

• Implement Incident Response Plan: Conduct a risk assessment, based on that design and establish an efficient incident response kit that helps in the early identification, isolation, and management of security breaches.

• Educate Users: Educate users on cybersecurity hygiene, opportunities to strengthen affinity with the University, and conduct retraining on threats like phishing and social engineering.

Conclusion:

The new threat actor named UTA0137 from Pakistan who was utilizing DISGOMOJI malware to attack Indian government institutions using embedded emojis with a command line through the Discord app was discovered by Volexity. It has the capability to exfiltrate and aims to steal the data of government entities. The UTA0137 was continuously improved over time to permanently communicate with victims. It underlines the necessity of having strong protection from viruses and hacker attacks, using secure passwords and unique codes every time, updating the software more often and having high-level anti-malware tools. Organizations can minimize advanced threats, the likes of DISGOMOJI and protect sensitive data by improving network segmentation, continuous monitoring of activities, and users’ awareness.

References:

https://otx.alienvault.com/pulse/66712446e23b1d14e4f293eb

https://thehackernews.com/2024/06/pakistani-hackers-use-disgomoji-malware.html?m=1

https://cybernews.com/news/hackers-using-emojis-to-command-malware/

https://www.blackhatethicalhacking.com/news/disgomoji-new-linux-malware-uses-emojis-for-command-execution/

https://www.volexity.com/blog/2024/06/13/disgomoji-malware-used-to-target-indian-government/

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Introduction

Taj Hotels Group is well known for its luxurious ambience and old-world grace and charm, blended with contemporary comforts and amenities for its guests or customers. But what can make all the netizens perplexed is the recent data breach incident which took place in Tata-owned Taj hotels. The hotel suffer from a data breach that compromises nearly 1.5 million customers' data which includes addresses, membership IDs, mobile numbers and other personally identifiable information, according to sources. This news was brought to light which raised concerns about the privacy and data protection of personal data of individuals. We are living in a space influenced by advanced technology and digital communication which throws a concern or challenge to secure the personal information of individuals. 

Unveiling the incident 

Tata-owned Taj Hotels group has suffered a data breach that compromise information of over 1.5 million customers, according to a news report. A bad actor or entity going by the name “Dnacookies” claimed data set contains data from the 2014-2020 period and has not been disclosed anywhere till now. Such personal data includes name, address, customer ID, mobile number and other personally identifiable information. This shows the risks or challenges of data protection and security. The incidents raise an alarm about the risks and vulnerabilities that might be faced even by the big corporate giants. The bad actor with the handle “Dnacookies” also demanded a ransom of a sum of about Rs 4.16 lakh from the Taj hotel group. In response to the incident, a spokesperson from the concerned hotel group said that we have been made aware of someone claiming possession of a limited data customer data set, which is non-sensitive in nature. Investigation is underway and relevant authorities have been notified about the incident.

‍A demand for ransom

The report from CNBC-TV18 clears that the bad actor not only purloined the data but also demanded around 4.16 lakh as a ransom for the database.  Along with this, the bad actor kept three conditions ahead. Firstly there has to be a middleman for a negotiable deal secondly the data cannot be split either the entire data has to be taken with the ransom demand or no data at all. Thirdly additional samples of data will not be provided. Further, the spokesperson of Indian Hotel Company Limited mentioned that they have been escalated with the fact that someone is claiming authority in a limited data set. The bad actor claimed that the database contains information from 2014- 2020 which has been kept confidential till now. The audacity of the bad actor went to such an extent that the sample containing one thousand rows of unique entries from the bad actor dataset was also provided by the bad actor as proof of the deed. This incident underlines the growing threat in cyberspace and the urgency for individuals, organizations or entities to priorities data security measures and maintain cyber resilience.

Personal Data on Stake

Such data is the personal information of the individuals and also constitutes the personal tastes and preferences of individuals which can be exploited. The biggest gush of winds the hotel and individuals face by such a data breach is not only the volume of data compromised but also the potential ways it can get misused and exploited against the hotel or its customers by cyber crooks. This paves the way for cybercriminals to put forward any demand knowing the sensitivity of the data. Followed by creating a dilemmatic situation for the affected entities to either accept the ransom demands or to stand against ransom. Since the risks are high, going ahead with any of these situations can have an adverse impact on the security of personal data. The organisation or entities holding the personal data need to make sure that data under their realm is well protected and secured.

While the organisation has to sail through the aftermath of this breach, such incidents also pose a challenge for the organisation to maintain the trust and reputation of the organization since these incidents question the cyber security posture of the organisation. It is suggested to be transparent with its stakeholders, and open about the vulnerabilities and steps taken against this. They should also discuss the amplified step added for safeguarding their customer's personal data. Since Taj is well known for its out-of-the-box luxury and for providing comfort to its customers it should take a step ahead to reinforce its digital infrastructure to ensure the security of data.

Digital Personal Data Protection Act, 2023

The newly enacted Digital Personal Data Act, 2023 put certain obligations on data fiduciaries to take reasonable measures to maintain the security of personal data. The Act also requires to inform about the data breach to the data protection board constituted under the Act. The Act aims to protect the individual's digital personal data. The Act casts certain obligations on data principals and data fiduciaries. The Act provides penalty upto 250 crores in case of a data breach. The Act aims to provide consent-based data collection techniques. The Act also establishes the Data Protection Board to ensure compliance with the provisions of the Act and address grievances. 

Conclusion

Data breach in such a big giant in the market serves as an alarming concern to be more cautious and proactively take precautionary measures to protect the security of data and compliance with data protection laws and regulations. We are living in an era where digital security is as important as the basic fundamental rights of an individual. Taj Hotels Group has actively taken steps to handle the aftermath of the data breach by informing the incident to law enforcement agencies and taking necessary steps.  It is also on our part to be more aware, and vigilant about our personal data. Entities need to ensure compliance and measures to protect personal data and overall ensure a true cyber-safe & digital environment.

References

https://www.moneycontrol.com/news/technology/taj-hotels-suffers-data-breach-exposes-information-of-1-5-million-customers-11801161.html

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Introduction

AI has penetrated most industries and telecom is no exception. According to a survey by Nvidia, enhancing customer experiences is the biggest AI opportunity for the telecom industry, with 35% of respondents identifying customer experiences as their key AI success story. Further, the study found nearly 90% of telecom companies use AI, with 48% in the piloting phase and 41% actively deploying AI. Most telecom service providers (53%) agree or strongly agree that adopting AI would provide a competitive advantage. AI in telecom is primed to be the next big thing and Google has not ignored this opportunity. It is reported that Google will soon add “AI Replies” to the phone app’s call screening feature. 

How Does The ‘AI Call Screener’ Work?

With the busy lives people lead nowadays, Google has created a helpful tool to answer the challenge of responding to calls amidst busy schedules. Google Pixel smartphones are now fitted with a new feature that deploys AI-powered calling tools that can help with call screening, note-making during an important call, filtering and declining spam, and most importantly ending the frustration of being on hold.  

In the official Google Phone app, users can respond to a caller through “new AI-powered smart replies”. While “contextual call screen replies” are already part of the app,  this new feature allows users to not have to pick up the call themselves. 

• With this new feature,  Google Assistant will be able to respond to the call with a customised audio response.
• The Google Assistant, responding to the call, will ask the caller’s name and the purpose of the call. If they are calling about an appointment, for instance, Google will show the user suggested responses specific to that call, such as ‘Confirm’ or ‘Cancel appointment’.

Google will build on the call-screening feature by using a “multi-step, multi-turn conversational AI” to suggest replies more appropriate to the nature of the call. Google’s Gemini Nano AI model is set to power this new feature and enable it to handle phone calls and messages even if the phone is locked and respond even when the caller is silent.

Benefits of AI-Powered Call Screening

This AI-powered call screening feature offers multiple benefits:

1. The AI feature will enhance user convenience by reducing the disruptions caused by spam calls. This will, in turn, increase productivity.
2. It will increase call privacy and security by filtering high-risk calls, thereby protecting users from attempts of fraud and cyber crimes such as phishing.  
3. The new feature can potentially increase efficiency in business communications by screening for important calls, delegating routine inquiries and optimising customer service. 

Key Policy Considerations

Adhering to transparent, ethical, and inclusive policies while anticipating regulatory changes can establish Google as a responsible innovator in AI call management. Some key considerations for AI Call Screener from a policy perspective are:

1. The AI screen caller will process and transcribe sensitive voice data, therefore, the data handling policies for such need to be transparent to reassure users of regulatory compliance with various laws. 
2. AI has been at a crossroads in its ethical use and mitigation of bias. It will require the algorithms to be designed to avoid bias and reflect inclusivity in its understanding of language. 
3. The data that the screener will be using is further complicated by global and regional regulations such as data privacy regulations like the GDPR, DPDP Act, CCPA etc., for consent to record or transcribe calls while focussing on user rights and regulations. 

Conclusion: A Balanced Approach to AI in Telecommunications

Google’s AI Call Screener offers a glimpse into the future of automated call management, reshaping customer service and telemarketing by streamlining interactions and reducing spam. As this technology evolves, businesses may adopt similar tools, balancing customer engagement with fewer unwanted calls. The AI-driven screening will also impact call centres, shifting roles toward complex, human-centred interactions while automation handles routine calls. They could have a potential effect on support and managerial roles. Ultimately, as AI call management grows, responsible design and transparency will be in demand to ensure a seamless, beneficial experience for all users.

References

• https://resources.nvidia.com/en-us-ai-in-telco/state-of-ai-in-telco-2024-report
• https://store.google.com/intl/en/ideas/articles/pixel-call-assist-phone-screen/ 
• https://www.thehindu.com/sci-tech/technology/google-working-on-ai-replies-for-call-screening-feature/article68844973.ece
• https://indianexpress.com/article/technology/artificial-intelligence/google-ai-replies-call-screening-9659612/ 

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