#FactCheck - The video of Virat Kohli promoting online casino mobile app is a deep fake.

As e-commerce companies expand their base and sell a wide range of products on their platforms, attackers continue to look for newer avenues to exploit and potential loopholes to perpetuate scams. A recent method used by scammers is the brushing scam, which targets online shoppers to drive sales. As per reports, it is already being conducted on popular and trusted e-commerce websites such as Amazon and Alibaba Express, and online shoppers must exercise caution with regard to the packages they receive.

The Brushing Scam

Deriving its name from China’s e-commerce practice, this scam includes sellers creating and sending fake orders to unsuspecting individuals, posing to be from e-commerce websites in order to ‘brush up’ the sales figures of their product. The products received are usually low quality and contain items such as low-cost jewellery, seeds, and random gadgets, among other things. The aim is to manipulate reviews for a particular product and make it seem popular so other buyers online are encouraged to purchase the items marketed. Most online shoppers today check reviews before making a purchase, and popular items and seemingly-trustworthy reviews can go a long way towards influencing customer behaviour. Since many platforms do include labels to authenticate reviews tied to genuine purchases to counter fake reviews, scammers have evolved a step further to develop an MO for fake reviews that holds up against basic levels of scrutiny. Some of the packages received under the brushing scam also have QR codes which once scanned lead the receiver to malicious websites.

CyberPeace Insights

Mysterious deliveries that have no information but your name and address may seem tempting to many, as receivers might assume that it could be a marketing gig and free products to try for the sake of promoting a product. The credibility of such deliveries increases as they are packaged to show that these are delivered through trusted online shopping and e-commerce sites. However, even though receiving products for free might seem harmless, it is advised that unknown items be dealt with carefully, more so when addressed to an individual with personal details. Receiving an order itself is an indication that personal information such as one’s name and address has been compromised, and it is likely that the sellers are involved in procuring personal information through a third party, often using illegal methods.

Registering complaints to the concerned e-commerce websites is encouraged, as the frequency of cases raises questions and encourages platforms to take action to ensure a secure buying and delivery experience from their end. An awareness of such scams being carried out for their customers could encourage caution on the part of these platforms and prove to be helpful in addressing the issue on multiple levels. On the part of the receivers, they can change the passwords of their e-commerce accounts and use a 2FA (2-factor authentication) for better security. They should also exercise caution while receiving such parcels, and avoid scanning QR codes on suspicious items.

References

1. https://www.livemint.com/technology/tech-news/brushing-scam-explained-from-fake-orders-to-reviews-how-fraudsters-are-manipulating-online-shopping-platforms-11735824384866.html
2. https://www.indiatvnews.com/technology/news/beware-of-amazon-scams-how-fraudsters-use-fake-reviews-to-sell-counterfeit-products-2025-01-02-969115
3. https://www.indiatoday.in/technology/news/story/brushing-scam-now-makes-buzz-as-it-targets-online-shoppers-everything-you-need-to-know-2659172-2025-01-03
4. https://www.msn.com/en-in/money/news/brushing-scam-now-makes-buzz-as-it-targets-online-shoppers-everything-you-need-to-know/ar-AA1wTvon 

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Executive Summary:

CVE 2024-3094 is a backdoor vulnerability recently found in Kali Linux installations that happened between March 26th to 29th. This vulnerability was found in XZ package version 5.6.0 to 5.6.1. It could allow the malicious actor to compromise SSHD authentication, and grant unauthorized access to the entire system remotely. The users who have installed or updated Kali Linux during the said time are advised to update their system to safeguard against this vulnerability. 

The Dangerous Backdoor

The use of the malicious implant found in XZ Utils as a remote code execution tool makes it more dangerous, because of its ability to compromise the affected systems. Initially, researchers believed the vulnerability enabled an authentication bypass for the OpenSSH server (SSHD) process. However, further analysis revealed it is better characterized as a remote code execution (RCE) vulnerability.

The backdoor intercepts the RSA_public_decrypt function, verifies the host's signature using a fixed Ed448 key, and if successful, executes malicious code passed by the attacker via the system() function. This leaves no trace in SSHD logs and makes it difficult to detect the vulnerability. 

Impacted Linux Distributions

The compromised versions of XZ Utils have been found in the following Linux distributions released in March 2024:

• Kali Linux (between March 26 and March 29)
• openSUSE Tumbleweed and openSUSE MicroOS (March 7 to March 28)
• Fedora 41, Fedora Rawhide, and Fedora Linux 40 beta
• Debian (testing, unstable, and experimental distributions only)
• Arch Linux container images (February 29 to March 29)
• Meanwhile, distributions such as Red Hat Enterprise Linux (RHEL), SUSE Linux Enterprise, openSUSE Leap, and Debian Stable are not believed to be affected.

How Did This Happen?

The malicious code appears to have been inserted by taking advantage of a typical control transfer vulnerability. The original maintainer of the XZ Libs project on GitHub handed over control of the repository to an account that had been contributing to various data compression-related projects for several years. It was at this point that the backdoor was implanted in the project code.

Fortunately, the Potential Disaster Was Averted

As per Igor Kuznetsov, head of Kaspersky's Global Research and Analysis Team (GReAT), the vulnerability CVE-2024-3094 is considered as the largest scale attack that has happened in the Linux ecosystem history. Because it targeted the primary remote management tool for Linux servers on the internet which is  SSH servers.  

As this vulnerability was detected in the testing and rolling distributions in the short period of time, where the latest software packages are used. This results to the minimum damage to the linux users and so far no case of CVE-2024-3094 being actively exploited have been detected.

Staying Safe

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) advises that users who installed or updated the affected operating systems in March immediately roll back to XZ Utils 5.4.6 version and be on alert for any malicious activity. It is recommended to change the passwords in the case of a distribution where a weak version of XZ Utils has been installed. 

The Yara rule has been released to detect any infected systems by CVE-2024-3094 Vulnerability. 

Conclusion

The discovery of the XZ Utils backdoor provides a reminder to be vigilant in the open source software environment. This supply chain attack highlights the importance of strong security measures, elaborate code reviews, and regular distribution of security updates to provide shield against such vulnerabilities. Always staying informed and taking the necessary precautions, Linux users can mitigate the potential impact of this vulnerability to keep their systems safe.

References : 

• https://thehackernews.com/2024/03/urgent-secret-backdoor-found-in-xz.html 
• https://www.helpnetsecurity.com/2024/03/29/cve-2024-3094-linux-backdoor/ 
• https://www.kali.org/blog/about-the-xz-backdoor/ 
• https://www.kaspersky.com/blog/cve-2024-3094-vulnerability-backdoor/50873/ 
• https://www.rapid7.com/blog/post/2024/04/01/etr-backdoored-xz-utils-cve-2024-3094/ 

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Executive Summary

A misleading  advertisement circulating in social media providing attractive offers like iPhone15, AirPods and Smartwatches from the Indian e-commerce platform ‘Myntra’. This “Myntra - Festival Gifts” scam aims to attract the unsuspecting users into a series of redirects and fake interactions to compromise their personal information and devices. It is important to stay vigilant to protect ourselves from misleading attractive offers. Through this report, the Research Wing of CyberPeace explains about a series of processes that happens when the link gets clicked. Through this knowledge, we aim to provide awareness and empower the users to guard themselves and not fall into deceptive offers that aim to scam them.   

False Claim

The widely shared WhatsApp message claims that Myntra  is offering a wide range of high-valued prizes including the latest iPhone 15, AirPods, various smartwatches among all as a Festival Gift promotion. The campaign invites the users to click on the link provided and take a short quiz to be eligible for the prize.

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The Deceptive Scheme

• The link in the social media post is tailored to work only on mobile devices, users are taken through a chain of redirects.
• Users are greeted with the Myntra's "Big Fashion Festival" branding accompanied by Myntra’s logo once they reach the landing page, which gives an impression of authenticity.
• Next, a simple quiz asks basic questions about the user's shopping experience with Myntra, their age, and gender.
• On the bottom of the quiz, there is a comment section that shows the comments from users who are supposedly provided with the prizes to look real,  
• After the completion of the quiz, users are presented with a Spin-to-Win mechanism, to win the prize. 
• After winning, a congratulatory message is displayed which says that the user has won an iPhone 15.
• The final step requires the user to share the campaign over WhatsApp in order to claim the prize.

 Analyzing the Fraudulent Campaign 

• The use of Myntra's branding and the promise of exclusive, high-value prizes are designed to attract  users' interest.
• The fake comments and social proof elements aim to create a false sense of legitimacy and widespread participation, making the offer seem more credible.
• The series of redirects, quizzes, and Spin-to-Win mechanics are tactics to keep users engaged and increase the likelihood of them falling for the scam.
• The final step of sharing the post on WhatsApp is a way for the scammers to further spread the campaign and compromise more victims. Through sharing the link over WhatsApp, users become unaware accomplices that are simply assisting the scammers to reach an even bigger audience and hence their popularity.

• The primary objectives of such scams are to gather users' personal information and potentially gain access to their devices. By luring users with the promise of exclusive gifts and creating a false sense of legitimacy, the scammers aim to exploit user trust and compromise their data, leading to potential identity theft, financial fraud, or the installation of potentially unwanted softwares.
• We have also cross-checked and as of now there is no well established and credible source or any official notification that has confirmed such an offer advertised by Myntra.
• Domain Analysis: If we closely look at the viral message, it is clearly visible that the scammers mentioned myntra.com in the url. However, the actual url takes the user to a different domain as the campaign is hosted on a third party domain instead of the official Website of Myntra, this raised suspicion. This is the common way to deceive users into falling for a Phishing scam. Whois information reveals that the domain has been registered not long ago i.e on 8th April 2024, just a few days back. Cybercriminals used Cloudflare technology to mask the actual IP address of the fraudulent website.

• Domain Name: MYTNRA.CYOU
• Registry Domain ID: D445770144-CNIC
• Registrar WHOIS Server: whois.hkdns.hk
• Registrar URL: http://www.hkdns.hk
• Updated Date: 2024-04-08T03:27:58.0Z
• Creation Date: 2024-04-08T02:58:14.0Z
• Registry Expiry Date: 2025-04-08T23:59:59.0Z
• Registrar: West263 International Limited
• Registrant State/Province: Delhi
• Registrant Country: IN
• Name Server: NORMAN.NS.CLOUDFLARE.COM
• Name Server: PAM.NS.CLOUDFLARE.COM

‍CyberPeace Advisory and Best Practices‍

• Do not open those messages received from social platforms in which you think that such messages are suspicious or unsolicited. In the beginning, your own discretion can become your best weapon.
• Falling prey to such scams could compromise your entire system, potentially granting unauthorized access to your microphone, camera, text messages, contacts, pictures, videos, banking applications, and more. Keep your cyber world safe against any attacks.
• Never, in any case, reveal such sensitive data as your login credentials and banking details to entities you haven't validated as reliable ones.
• Before sharing any content or clicking on links within messages, always verify the legitimacy of the source. Protect not only yourself but also those in your digital circle.
• For the sake of the truthfulness of offers and messages, find the official sources and companies directly. Verify the authenticity of alluring offers before taking any action.

Conclusion:

The “Myntra - Festival Gift” scam is a kind of manipulation in which the fraudsters exploit the trust of the users and take advantage of a popular e-commerce website. It is equally crucial to equip the users by imparting them knowledge on fraudulent behavior tactics like impersonating brands, creating fake social proof and application of different engagement strategies. We are required to remain alert and stand firm against cyber attacks. Be careful, make sure that information is verified and share awareness to help make a safe online environment for all users.

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