CERT-In Alert: Protecting Yourself from Smishing Attacks
Introduction
With the ever-growing technology where cyber-crimes are increasing, a new cyber-attack is on the rise, but it’s not in your inbox or your computer- it's targeting your phone, especially your smartphone. Cybercriminals are expanding their reach in India, with a new text-messaging fraud targeting individuals. The Indian Computer Emergency Response Team (CERT-In) has warned against "smishing," or SMS phishing.
Understanding Smishing
Smishing is a combination of the terms "SMS" and "phishing." It entails sending false text messages that appear to be from reputable sources such as banks, government organizations, or well-known companies. These communications frequently generate a feeling of urgency in their readers, prompting them to click on harmful links, expose personal information, or conduct financial transactions.
When hackers "phish," they send out phony emails in the hopes of tricking the receiver into clicking on a dangerous link. Smishing is just the use of text messaging rather than email. In essence, these hackers are out to steal your personal information to commit fraud or other cybercrimes. This generally entails stealing money – usually your own, but occasionally also the money of your firm.
The cybercriminals typically use these tactics to lure victims and steal the information.
Malware- The cyber crooks send the smishing URL link that might tick you into downloading malicious software on your phone itself. This SMS malware may appear as legitimate software, deceiving you into putting in sensitive information and transmitting it to crooks.
Malicious website- The URL in the smishing message may direct you to a bogus website that seeks sensitive personal information. Cybercriminals employ custom-made rogue sites meant to seem like legitimate ones, making it simpler to steal your information.
Smishing text messages often appear to be from your bank, asking you to share personal sensitive information, ATM numbers, or account details. Mobile device cybercrime is increasing, as is mobile device usage. Aside from the fact that texting is the most prevalent usage of cell phones, a few additional aspects make this an especially pernicious security issue. Let's go over how smishing attacks operate.
Modus Operandi
The cyber crooks commit the fraud via SMS. As attackers assume an identity that might be of someone trusted, Smishing attackers can use social engineering techniques to sway a victim's decision-making. Three things are causing this deception:
- Trust- Cyber crooks target individuals, by posing to someone from a legitimate individual and organization, this naturally lowers a person’s defense against threats.
- Context- Using a circumstance that might be relevant to targets helps an attacker to create an effective disguise. The message feels personalized, which helps it overcome any assumption that it is spam.
- Emotion- The nature of the SMS is critical; it makes the victim think that is urgent and requires rapid action. Using these tactics, attackers craft communications that compel the receiver to act.
- Typically, attackers want the victim to click on a URL link within the text message, which takes them to a phishing tool that asks them for sensitive information. This phishing tool is frequently in the form of a website or app that also assumes a phony identity.
How does Smishing Spread?
As we have revealed earlier smishing attacks are delivered through both traditional texts. However, SMS phishing attacks primarily appear to be from known sources People are less careful while they are on their phones. Many people believe that their cell phones are more secure than their desktops. However, smartphone security has limits and cannot always guard against smishing directly.
Considering the fact phones are the target While Android smartphones dominate the market and are a perfect target for malware text messages, iOS devices are as vulnerable. Although Apple's iOS mobile technology has a high reputation for security, no mobile operating system can protect you from phishing-style assaults on its own. A false feeling of security, regardless of platform, might leave users especially exposed.
Kinds of smishing attacks
Some common types of smishing attacks that occurred are;
- COVID-19 Smishing: The Better Business Bureau observed an increase in reports of US government impersonators sending text messages requesting consumers to take an obligatory COVID-19 test via a connected website in April 2020. The concept of these smishing assaults may readily develop, as feeding on pandemic concerns is a successful technique of victimizing the public.
- Gift Smishing: Give away, shopping rewards, or any number of other free offers, this kind of smishing includes free services or products, from a reputable or other company. attackers plan in such a way that the offer is for a limited time or is an exclusive offer and the offers are so lucrative that one gets excited and falls into the trap.
CERT Guidelines
CERT-In shared some steps to avoid falling victim to smishing.
- Never click on any suspicious link in SMS/social media charts or posts.
- Use online resources to validate shortened URLs.
- Always check the link before clicking.
- Use updated antivirus and antimalware tools.
- If you receive any suspicious message pretending to be from a bank or institution, immediately contact the bank or institution.
- Use a separate email account for personal online transactions.
- Enforce multi-factor authentication (MFA) for emails and bank accounts.
- Keep your operating system and software updated with the latest patches.
Conclusion
Smishing uses fraudulent mobile text messages to trick people into downloading malware, sharing sensitive data, or paying cybercriminals money. With the latest technological developments, it has become really important to stay vigilant in the digital era not only protecting your computers but safeguarding the devices that fit in the palm of your hand, CERT warning plays a vital role in this. Awareness and best practices play a pivotal role in safeguarding yourself from evolving threats.
Reference
- https://www.ndtv.com/india-news/government-warns-of-smishing-attacks-heres-how-to-stay-safe-4709458
- https://zeenews.india.com/technology/govt-warns-citizens-about-smishing-scam-how-to-protect-against-this-online-threat-2654285.html
- https://www.the420.in/protect-against-smishing-scams-cert-in-advice-online-safety/
Related Blogs
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.
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.volexity.com/blog/2024/06/13/disgomoji-malware-used-to-target-indian-government/
Executive Summary:
Our research has determined that a widely circulated social media image purportedly showing astronaut Sunita Williams with U.S. President Donald Trump and entrepreneur Elon Musk following her return from space is AI-generated. There is no verifiable evidence to suggest that such a meeting took place or was officially announced. The image exhibits clear indicators of AI generation, including inconsistencies in facial features and unnatural detailing.
Claim:
It was claimed on social media that after returning to Earth from space, astronaut Sunita Williams met with U.S. President Donald Trump and Elon Musk, as shown in a circulated picture.
Fact Check:
Following a comprehensive analysis using Hive Moderation, the image has been verified as fake and AI-generated. Distinct signs of AI manipulation include unnatural skin texture, inconsistent lighting, and distorted facial features. Furthermore, no credible news sources or official reports substantiate or confirm such a meeting. The image is likely a digitally altered post designed to mislead viewers.
While reviewing the accounts that shared the image, we found that former Indian cricketer Manoj Tiwary had also posted the same image and a video of a space capsule returning, congratulating Sunita Williams on her homecoming. Notably, the image featured a Grok watermark in the bottom right corner, confirming that it was AI-generated.
Additionally, we discovered a post from Grok on X (formerly known as Twitter) featuring the watermark, stating that the image was likely AI-generated.
Conclusion:
As per our research on the viral image of Sunita Williams with Donald Trump and Elon Musk is AI-generated. Indicators such as unnatural facial features, lighting inconsistencies, and a Grok watermark suggest digital manipulation. No credible sources validate the meeting, and a post from Grok on X further supports this finding. This case underscores the need for careful verification before sharing online content to prevent the spread of misinformation.
- Claim: Sunita Williams met Donald Trump and Elon Musk after her space mission.
- Claimed On: Social Media
- Fact Check: False and Misleading
Executive Summary:
A photo circulating on the web that claims to show the future design of the Bhabha Atomic Research Center, BARC building, has been found to be fake after fact checking has been done. Nevertheless, there is no official notice or confirmation from BARC on its website or social media handles. Through the AI Content Detection tool, we have discovered that the image is a fake as it was generated by an AI. In short, the viral picture is not the authentic architectural plans drawn up for the BARC building.
Claims:
A photo allegedly representing the new outlook of the Bhabha Atomic Research Center (BARC) building is reigning over social media platforms.
Fact Check:
To begin our investigation, we surfed the BARC's official website to check out their tender and NITs notifications to inquire for new constructions or renovations.
It was a pity that there was no corresponding information on what was being claimed.
Then, we hopped on their official social media pages and searched for any latest updates on an innovative building construction, if any. We looked on Facebook, Instagram and X . Again, there was no information about the supposed blueprint. To validate the fact that the viral image could be generated by AI, we gave a search on an AI Content Detection tool by Hive that is called ‘AI Classifier’. The tool's analysis was in congruence with the image being an AI-generated computer-made one with 100% accuracy.
To be sure, we also used another AI-image detection tool called, “isitai?” and it turned out to be 98.74% AI generated.
Conclusion:
To conclude, the statement about the image being the new BARC building is fake and misleading. A detailed investigation, examining BARC's authorities and utilizing AI detection tools, proved that the picture is more probable an AI-generated one than an original architectural design. BARC has not given any information nor announced anything for such a plan. This makes the statement untrustworthy since there is no credible source to support it.
Claim: Many social media users claim to show the new design of the BARC building.
Claimed on: X, Facebook
Fact Check: Misleading
