#FactCheck - Viral Video of US President Biden Dozing Off during Television Interview is Digitally Manipulated and Inauthentic

Introduction

Recently the attackers employed the CVE-2017-0199 vulnerability in Microsoft Office to deliver a fileless form of the Remcos RAT. The Remcos RAT makes the attacker have full control of the systems that have been infected by this malware. This research will give a detailed technical description of the identified vulnerability, attack vector, and tactics together with the practical steps to counter the identified risks.

The Targeted Malware: Remcos RAT

Remcos RAT (Remote Control & Surveillance) is a commercially available remote access tool designed for legitimate administrative use. However, it has been widely adopted by cybercriminals for its stealth and extensive control capabilities, enabling:

• System control and monitoring
• Keylogging
• Data exfiltration
• Execution of arbitrary commands

The fileless variant utilised in this campaign makes detection even more challenging by running entirely in system memory, leaving minimal forensic traces.

Attack Vector: Phishing with Malicious Excel Attachments

The phishing email will be sent which appears as legitimate business communication, such as a purchase order or invoice. This email contains an Excel attachment that is weaponized to exploit the CVE-2017-0199 vulnerability.

Technical Analysis: CVE-2017-0199 Exploitation

Vulnerability Assessment

• CVE-2017-0199 is a Remote Code Execution (RCE) vulnerability in Microsoft Office which uses Object Linking and Embedding (OLE) objects.
• Affected Components:some text
  • Microsoft Word
  • Microsoft Excel
  • WordPad
• CVSS Score: 7.8 (High Severity)

Mechanism of Exploitation

The vulnerability enables attackers to craft a malicious document when opened, it fetches and executes an external payload via an HTML Application (HTA) file. The execution process occurs without requiring user interaction beyond opening the document.

Detailed Exploitation Steps

1. Phishing Email and Malicious Document some text
   • The email contains an Excel file designed to make use of CVE-2017-0199.
   • When the email gets opened, the document automatically connects to a remote server (e.g., 192.3.220[.]22) to download an HTA file (cookienetbookinetcache.hta).
2. Execution via mshta.exe some text
   • The downloaded HTA file is executed using mshta.exe, a legitimate Windows process for running HTML Applications.
   • This execution is seamless and does not prompt the user, making the attack stealthy.
3. Multi-Layer Obfuscation some text
   • The HTA file is wrapped in several layers of scripting, including: some text
     • JavaScript
     • VBScript
     • PowerShell
   • This obfuscation helps evade static analysis by traditional antivirus solutions.
4. Fileless Payload Deployment some text
   • The downloaded executable leverages process hollowing to inject malicious code into legitimate system processes.
   • The Remcos RAT payload is loaded directly into memory, avoiding the creation of files on disk.

Fileless Malware Techniques

1. Process Hollowing
The attack replaces the memory of a legitimate process (e.g., explorer.exe) with the malicious Remcos RAT payload. This allows the malware to:

• Evade detection by blending into normal system activity.
• Run with the privileges of the hijacked process.

2. Anti-Analysis Techniques

• Anti-Debugging: Detects the presence of debugging tools and terminates malicious processes if found.
• Anti-VM and Sandbox Evasion: Ensures execution only on real systems to avoid detection during security analysis.

3. In-Memory Execution

• By running entirely in system memory, the malware avoids leaving artifacts on the disk, making forensic analysis and detection more challenging.

Capabilities of Remcos RAT

Once deployed, Remcos RAT provides attackers with a comprehensive suite of functionalities, including:

• Data Exfiltration: some text
  • Stealing system information, files, and credentials.
• Remote Execution: some text
  • Running arbitrary commands, scripts, and additional payloads.
• Surveillance: some text
  • Enabling the camera and microphone.
  • Capturing screen activity and clipboard contents.
• System Manipulation: some text
  • Modifying Windows Registry entries.
  • Controlling system services and processes.
  • Disabling user input devices (keyboard and mouse).

Advanced Phishing Techniques in Parallel Campaigns

1. DocuSign Abuse
Attackers exploit legitimate DocuSign APIs to create authentic-looking phishing invoices. These invoices can trick users into authorising payments or signing malicious documents, bypassing traditional email security systems.

2. ZIP File Concatenation
By appending multiple ZIP archives into a single file, attackers exploit inconsistencies in how different tools handle these files. This allows them to embed malware that evades detection by certain archive managers.

Broader Implications of Fileless Malware

Fileless malware like Remcos RAT poses significant challenges:

• Detection Difficulties: Traditional signature-based antivirus systems struggle to detect fileless malware, as there are no static files to scan.
• Forensic Limitations: The lack of disk artifacts complicates post-incident analysis, making it harder to trace the attack's origin and scope.
• Increased Sophistication: These campaigns demonstrate the growing technical prowess of cybercriminals, leveraging legitimate tools and services for malicious purposes.

Mitigation Strategies

1. Patch Management some text
   • It is important to regularly update software to address known vulnerabilities like CVE-2017-0199. Microsoft released a patch for this vulnerability in April 2017.
2. Advanced Email Security some text
   • It is important to implement email filtering solutions that can detect phishing attempts, even those using legitimate services like DocuSign.
3. Endpoint Detection and Response (EDR)some text
   • Always use EDR solutions to monitor for suspicious behavior, such as unauthorized use of mshta.exe or process hollowing.
4. User Awareness and Training some text
   • Educate users about phishing techniques and the risks of opening unexpected attachments.
5. Behavioral Analysis some text
   • Deploy security solutions capable of detecting anomalous activity, even if no malicious files are present.

Conclusion

The attack via CVE-2017-0199 further led to the injection of a new fileless variant of Remcos RAT, proving how threats are getting more and more sophisticated. Thanks to the improved obfuscation and the lack of files, the attackers eliminate all traditional antiviral protection and gain full control over the infected computers. It is real and organisations have to make sure that they apply patches on time, that they build better technologies for detection and that the users themselves are more wary of the threats.

References

• Fortinet FortiGuard Labs: Analysis by Xiaopeng Zhang
• Perception Point: Research on ZIP File Concatenation
• Wallarm: DocuSign Phishing Analysis
• Microsoft Security Advisory: CVE-2017-0199

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Introduction

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With the advent of cloud computing, new information and asset delivery avenues have become possible, including Infrastructure-as-a-Service, Platform-as-a-Service, and Software-as-a-Service. With this change, the conventional paradigm of "computer as a product" is replaced with "computing as a service," which is provided to customers via the internet by big data warehouses or the cloud. Additionally, it has brought about an essential shift in how organisations function, allowing them to access computer tools and services online instead of needing to construct and manage their IT systems. As a result, organizations are now more agile, scalable, and efficient and can react swiftly to shifting consumer demands and market situations.

The Growth of Remote and Hybrid Workspaces

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Hybrid and remote workplaces are becoming more popular post-pandemic era. Many businesses have used regional workplace solutions to manage a more scattered workforce. IT departments are put in a difficult position since they have to make sure that branch office staff and remote workers can access the information they require safely and dependably. VPNs and Direct Internet Access links are becoming more and more popular, thus IT professionals are coming up with innovative ways for connecting distant locations to the main office while protecting the confidentiality of information.

User Portability

‍The widespread use of mobile devices for work, along with the growing Bring Your Own Device (BYOD) culture, has significantly contributed to the rise of remote work and flexible work environments. Employees can now connect to corporate systems using either personal or company-issued devices through secure methods such as Virtual Private Networks (VPNs) or cloud-based platforms. This has made teleworking, work-from-home setups, and flexible work hours increasingly common and practical, allowing for greater productivity and work-life balance.

Growing Volume of Traffic

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Professionals in the modern workplace must have access to private apps stored in a data centre or a multi-cloud setup. Nevertheless, these programs might not always be easily accessible from branch offices or by remote workers and staff members might not have instant support for IT. Organizations must discover solutions to this problem so that remote workers may consistently and dependably access company resources while also making the most of their current assets. It is important to note that employees need reliable and secure ways to access their work tools from anywhere, just like they would in the office.

Battling Networking and Security Issues in a Post-Pandemic Setting

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While many businesses have successfully adopted a cloud-first approach for new system implementations or have deployed specific Software-as-a-Service (SaaS) solutions, many are still struggling to fully reap the benefits of moving most or all of their business software to the cloud.

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• Conventional IT frameworks allowed for the creation of the present company applications. Because of this, these applications are frequently inflexible and configured for fixed capacity across a limited number of data facilities. Certain organizations could lack the elements required to oversee an entire cloud migration. This could be the result of things like an affinity for on-premises systems, aversion to alteration, or a lack of experience with cloud systems. 
• Although cloud computing might be a cost-effective solution for some workloads, it might not be the best choice overall. Running certain applications in a combination of cloud services or on-premises may be more cost-effective. 
• Particularly if they are regionally distributed, workloads requiring high connection speeds or low latency may not be ideal for cloud computing.
• If a corporation lacks authority over the servers in the cloud, it may be concerned about the integrity of its data stored there. Consequently, they would rather keep it inside their data facilities.
• Firms may be restricted in their ability to migrate some types of information to the cloud by legal or compliance regulations. 

Networking and Cybersecurity Consolidation: Handling Present Risks

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In the past, protecting a network required establishing boundaries and keeping an eye on communication between recognized devices. However, it is now required for a network's components to work together as a cohesive system due to shifting expectations. To do this, flexible network pieces must be able to communicate with one another while also protecting workflows, apps, and payments that move across different devices. The current problem is to effortlessly combine security with network capabilities and connection so that data can flow between constantly moving devices while being inspected, encrypted, and subject to regulation.

Infrastructure and security personnel must update their methods and equipment to better meet these constraints to deliver reliable, efficient, and trustworthy access across users, apps, and regions within an enterprise. Inevitably, networking and safety will eventually merge for improved organizational alignment.

Businesses may stay ahead of the competition in attracting top people in an increasingly diverse and cost-effective workplace by integrating a virtual and physical workforce. The future of security solutions lies in consolidation and platformisation; a cloud-centric Secure Access Service Edge (SASE) the capacity offering paired with network edge capabilities like secured Software-Defined Wide Area Network (SD-WAN) can improve and automate the safety measures of the company while also cutting down on the complexity and expense of managing disparate point remedies.

Safe Networking: Moving Towards This Phenomenon and Concentration of Cybersecurity

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Companies relying on conventional networking models often face challenges in securing modern elements, such as cloud-based applications, remote users, mobile devices, and distributed locations, because traditional networks were not designed with these factors in mind. A robust networking strategy integrates both safety and networking into one system to get around these problems. It enhances security posture and network performance. It improves the user's experience and lessens the complexities of management. It is important to combine point product providers into a risk management platform rather than implementing safety measures one at a time. Tighter cooperation, greater efficiency, and a quicker, better-coordinated reaction to network threats are made possible by this.

SASE: A Coordinated Method

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Secure Access Service Edge (SASE) is a cloud-based architecture that offers security and networking solutions as needed and unites all edges into a single logical connection.

SASE drivers

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Conventional safety measures are ill-suited to deal with the more dispersed and complicated IT environment brought about by the advent of the Internet of Things, edge computing, and telecommuting. Using SASE, security and network services may be accessed from the cloud, eliminating the need to backhaul traffic to a single data centre for safety assessment.

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• Distant user traffic assessment and blind spots presented difficulties for companies.
• Full oversight over hybrid network operations is provided by SASE technology, which provides network services including FWaaS, SWG, DLP, and CASB.
• Issues around abnormal port usage and policy violations have arisen as more customers access SaaS apps from different gadgets and regions.
• SASE technology reduces the cost of hiring IT staff by combining safe access to resources from one supplier.
• SASE technology consolidates secure accessibility capabilities from one vendor, hence lowering the cost of hiring IT workers.
• One major benefit of SASE technology is its ease of administration. Even when overseeing multiple offices inside a corporate network, the IT department's job is minimized because a single cloud-based administrator manages the entire system.

Recommendations

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• For high-risk use cases, consider utilizing Zero Trust Network Access to supplement or replace the outdated VPN for distant users.
• Take inventory of the gear and agreements in order to progressively replace the branch and perimeter hardware on-site over a few years in favour of delivering SASE functionalities via the cloud.
• Simplify and cut expenses by grouping suppliers when VPN, CASB, and encrypted web portal agreements are up for renewal. Profit from a market that has come together and integrated these security edge services.
• Limit SASE products to a couple of partnering companies.
• Irrespective of location, integrate Zero Trust Network Access (ZTNA) and methods of authorization (such as MFA) for every client, including those in the workplace or branch.
• To meet security and regulatory requirements, select SASE products that provide you control over where inspection takes place, how traffic is directed, what is recorded, and where records are kept.

Conclusion

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The development of cloud technology, the rise of offsite and hybrid workplaces, and the increased challenges in communication and privacy following the pandemic highlight the necessity for a comprehensive and integrated strategy. By adopting SASE (Secure Access Service Edge), a cloud-centric framework that enables secure connectivity across diverse environments, businesses can enhance cybersecurity, streamline operations, and adapt to the evolving needs of modern workplaces. This approach ultimately contributes to a safer and more efficient future for information architecture.

References

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• https://www.dsci.in/files/content/knowledge-centre/2023/DSCI-Fortinet%20POV%20Paper.pdf
• https://www.datacenterknowledge.com/cloud/cloud-trends-and-cybersecurity-challenges-navigating-future
• https://banagevikas.medium.com/cybersecurity-trends-2024-navigating-the-future-10383ec10efe

Authors:

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Soumya Gangele (Intern - Tech & Policy), CyberPeace

Neeraj Soni (Sr. Researcher), CyberPeace

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Introduction:

A new Android malware called NGate is capable of stealing money from payment cards through relaying the data read by the Near Field Communication (“NFС”) chip to the attacker’s device. NFC  is a device which allows  devices such as smartphones to communicate over a short distance wirelessly.  In particular, NGate allows forging the victims’ cards and, therefore, performing fraudulent purchases or withdrawing money from ATMs. . 

 About NGate Malware: 

The whole purpose of NGate malware is to target victims’ payment cards by relaying the NFC data to the attacker’s device. The malware is designed to take advantage of phishing tactics and functionality of the NFC on android based devices. 

Modus Operandi: 

• Phishing Campaigns: The first step is spoofed emails or SMS used to lure the users into installing the  Progressive Web Apps (“PWAs”) or the WebAPKs presented as genuine banking applications. These apps usually have a layout and logo that makes them look like an authentic app of a Targeted Bank which makes them believable. 

• Installation of NGate: When the victim downloads the specific app, he or she is required to input personal details including account numbers and PIN numbers. Users are also advised to turn on or install  NFC on their gadgets and place the payment cards to the back part of the phone to scan the cards. 

• NFCGate Component: One of the main working features of the NGate is the NFCGate, an application created and designed by some students of Technical University of Darmstadt. This tool allows the malware to:
  • • Collect NFC traffic from payment cards in the vicinity. 
    • Transmit, or relay this data to the attacker’s device through a server. 
    • Repeat data that has been previously intercepted or otherwise copied.

It is important to note that some aspects of NFCGate mandate a rooted device; however, forwarding NFC traffic can occur with devices that are not rooted, and therefore can potentially ensnare more victims. ‍

Technical Mechanism of Data Theft:

• Data Capture: The malware exploits the NFC communication feature on android devices and reads the information from the payment card, if the card is near the infected device. It is able to intercept and capture the sensive card details.  

• Data Relay: The stolen information  is transmitted through a server to the attacker’s device so that he/she is in a position to mimic the victim’s card. 

• Unauthorized Transactions: Attackers get access to spend money on the merchants or withdraw money from the ATM that has NFC enabled. This capability marks a new level of Android malware in that the hackers are able to directly steal money without having to get hold of the card. 

Social Engineering Tactics: 

In most cases, attackers use social engineering techniques to obtain more information from the target before implementing the attack. In the second phase, attackers may pretend to be representatives of a bank that there is a problem with the account and offer to download a program called NGate, which in fact is a Trojan under the guise of an application for confirming the security of the account. This method makes it possible for the attackers to get ITPIN code from the sides of the victim, which enables them to withdraw money from the targeted person’s account without authorization. 

 Technical Analysis:

The analysis of malicious file hashes and phishing links are below:

Malicious File Hashes:

csob_smart_klic.apk:

• MD5: 7225ED2CBA9CB6C038D8
• Classification: Android/Spy.NGate.B

csob_smart_klic.apk:

• MD5: 66DE1E0A2E9A421DD16B
• Classification: Android/Spy.NGate.C

george_klic.apk:

• MD5: DA84BC78FF2117DDBFDC
• Classification: Android/Spy.NGate.C

george_klic-0304.apk:

• MD5: E7AE59CD44204461EDBD
• Classification: Android/Spy.NGate.C

rb_klic.apk:

• MD5: 103D78A180EB973B9FFC
• Classification: Android/Spy.NGate.A

rb_klic.apk:

• MD5: 11BE9715BE9B41B1C852
• Classification: Android/Spy.NGate.C.

Phishing URLs:

Phishing URL: 

• https://client.nfcpay.workers[.]dev/?key=8e9a1c7b0d4e8f2c5d3f6b2

Additionally, several distinct phishing websites have been identified, including:

• rb.2f1c0b7d.tbc-app[.]life
• geo-4bfa49b2.tbc-app[.]life
• rb-62d3a.tbc-app[.]life
• csob-93ef49e7a.tbc-app[.]life
• george.tbc-app[.]life.

Analysis:

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Broader Implications of NGate: 

The ultramodern features of NGate mean that its manifestation is not limited to financial swindling. An attacker can also generate a copy of NFC access cards and get  full access when hacking into restricted areas, for example, the corporate offices or restricted facility. Moreover, it is also safe to use the capacity to capture and analyze NFC traffic as threats to identity theft and other forms of cyber-criminality. 

Precautionary measures to be taken:

To protect against NGate and similar threats, users should consider the following strategies:

• Disable NFC: As mentioned above, NFC should be not often used, it is safe to turn NFC on Android devices off. This perhaps can be done from the general control of the device in which the bursting modes are being set. 

• Scrutinize App Permissions: Be careful concerning the permission that applies to the apps that are installed particularly the ones allowed to access the device. Hence, it is very important that applications should be downloaded only from genuine stores like Google Play Store only. 

• Use Security Software: The malware threat can be prevented by installing relevant security applications that are available in the market. 

• Stay Informed: As it has been highlighted, it is crucial for a person to know risks that are associated with the use of NFC while attempting to safeguard an individual’s identity. 

Conclusion: 

The presence of malware such as NGate is proof of the dynamism of threats in the context of mobile payments. Through the utilization of NFC function, NGate is a marked step up of Android malware implying that the attackers can directly manipulate the cash related data of the victims regardless of the physical aspect of the payment card. This underscores the need to be careful when downloading applications and to be keen on the permission one grants on the application. Turn NFC when not in use, use good security software and be aware of  the latest scams are some of the measures that help to fight this high level of financial fraud. The  attackers are now improving their methods. It is only right for the people and companies to take the right steps in avoiding the breach of privacy and identity theft.

Reference:

• https://www.welivesecurity.com/en/eset-research/ngate-android-malware-relays-nfc-traffic-to-steal-cash/
• https://therecord.media/android-malware-atm-stealing-czech-banks
• https://www.darkreading.com/mobile-security/nfc-traffic-stealer-targets-android-users-and-their-banking-info
• https://cybersecuritynews.com/new-ngate-android-malware/

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