SharpRhino RAT: Advanced Threat Hidden in Legitimate Software
Overview:
A recent addition to the list of cybercrime is SharpRhino, a RAT (Remote Access Trojan) actively used by Hunters International ransomware group. SharpRhino is highly developed and penetrates into the network mask of IT specialists, primarily due to the belief in the tools’ legitimacy. Going under the genuine software installer, SharpRhino started functioning in mid-June 2024. However, Quorum Cyber discovered it in early August 2024 while investigating ransomware.
About Hunters International Group:
Hunters International emerged as one of the most notorious groups focused on ransomware attacks, having compromised over 134 targets worldwide in the first seven months of 2024. It is believed that the group is the rebranding of Hive ransomware group that was previously active, and there are considerable similarities in the code. Its focus on IT employees in particular demonstrates the fact that they move tactically in gaining access to the organizations’ networks.
Modus Operandi:
1. Typosquatting Technique
SharpRhino is mainly distributed by a domain that looks like the genuine Angry IP Scanner, which is a popular network discovery tool. The malware installer, labeled as ipscan-3.9.1-setup. It is a 32-bit Nullsoft installer which embeds a password protected 7z archive in it.
2. Installation Process
- Execution of Installer: When the victim downloads and executes the installer and changes the windows registry in order to attain persistence. This is done by generating a registry entry that starts a harmful file, Microsoft. AnyKey. exe, are fakes originating from fake versions of true legitimate Microsoft Visual Studio tools.
- Creation of Batch File: This drops a batch file qualified as LogUpdate at the installer.bat, that runs the PowerShell scripts on the device. These scripts are to compile C# code into memory to serve as a means of making the malware covert in its operation.
- Directory Creation: The installer establishes two directories that allow the C2 communication – C:\ProgramData\Microsoft: WindowsUpdater24 and LogUpdateWindows.
3. Execution and Functionality:
- Command Execution: The malware can execute PowerShell commands on the infected system, these actions may involve privilege escalation and other extended actions such as lateral movement.
- C2 Communication: SharpRhino interacts with command and control servers located on domains from platforms such as Cloudflare. This communication is necessary for receiving commands from the attackers and for returning any data of interest to the attackers.
- Data Exfiltration and Ransomware Deployment: Once SharpRhino has gained control, it can steal information and then proceed to encrypt it with a .locked extension. The procedure generally concludes with a ransom message, which informs users on how to purchase the decryption key.
4. Propagation Techniques:
Also, SharpRhino can spread through the self-copying method, this is the virus may copy itself to other computers using the network account of the victim and pretending to be trustworthy senders such as emails or network-shared files. Moreover, the victim’s machine may then proceed to propagate the malware to other systems like sharing in the company with other employees.
Indicators of Compromise (IOCs):
- LogUpdate.bat
- Wiaphoh7um.t
- ipscan-3.9.1-setup.exe
- kautix2aeX.t
- WindowsUpdate.bat
Command and Control Servers:
- cdn-server-1.xiren77418.workers.dev
- cdn-server-2.wesoc40288.workers.dev
- Angryipo.org
- Angryipsca.com
Analysis:
Graph:
Precautionary measures to be taken:
To mitigate the risks posed by SharpRhino and similar malware, organizations should implement the following measures:
- Implement Security Best Practices: It is important only to download software from official sites and avoid similar sites to confuse the user by changing a few letters.
- Enhance Detection Capabilities: Use technology in detection that can detect the IOCs linked to Sharp Rhino.
- Educate Employees: Educate IT people and employees on phishing scams and the requirement to check the origin of the application.
- Regular Backups: It is also important to back up important files from systems and networks in order to minimize the effects of ransomware attacks on a business.
Conclusion:
SharpRhino could be deemed as the evolution of the strategies used by organizations like Hunters International and others involved in the distribution of ransomware. SharpRhino primarily focuses on the audience of IT professionals and employs complex delivery and execution schemes, which makes it an extremely serious threat for corporate networks. To do so it is imperative that organizations have an understanding of its inner workings in order to fortify their security measures against this relatively new threat. Through the enforcement of proper security measures and constant enlightenment of organizations on the importance of cybersecurity, firms can prevent the various risks associated with SharpRhino and related malware. Be safe, be knowledgeable, and most importantly, be secure when it comes to cyber security for your investments.
Reference:
https://cybersecuritynews.com/sharprhino-ransomware-alert/
https://cybersecsentinel.com/sharprhino-explained-key-facts-and-how-to-protect-your-data/
https://www.dataprivacyandsecurityinsider.com/2024/08/sharprhino-malware-targeting-it-professionals/
Related Blogs
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Introduction
AI-generated fake videos are proliferating on the Internet indeed becoming more common by the day. There is a use of sophisticated AI algorithms that help manipulate or generate multimedia content such as videos, audio, and images. As a result, it has become increasingly difficult to differentiate between genuine, altered, or fake content, and these AI-manipulated videos look realistic. A recent study has shown that 98% of deepfake-generated videos have adult content featuring young girls, women, and children, with India ranking 6th among the nations that suffer from misuse of deepfake technology. This practice has dangerous consequences and could harm an individual's reputation, and criminals could use this technology to create a false narrative about a candidate or a political party during elections.
The working of deepfake videos is based on algorithms that refine the fake content, and the generators are built and trained in such a way as to get the desired output. The process is repeated several times, allowing the generator to improve the content until it seems realistic, making it more flawless. Deepfake videos are created by specific approaches some of them are: -
- Lip syncing: This is the most common technique used in deepfake. Here, the voice recordings of the video, make it appear as to what was originally said by the person appearing in the video.
- Audio deepfake: For Audio-generated deepfake, a generative adversarial network (GAN) is used to colon a person’s voice, based on the vocal patterns and refine it till the desired output is generated.
- Deepfake has become so serious that the technology could be used by bad actors or by cyber-terrorist squads to set their Geo-political agendas. Looking at the present situation in the past few the number of cases has just doubled, targeting children, women and popular faces.
- Greater Risk: in the last few years the cases of deep fake have risen. by the end of the year 2022, the number of cases has risen to 96% against women and children according to a survey.
- Every 60 seconds, a deepfake pornographic video is created, now quicker and more affordable than ever, it takes less than 25 minutes and costs using just one clean face image.
- The connection to deepfakes is that people can become targets of "revenge porn" without the publisher having sexually explicit photographs or films of the victim. They may be made using any number of random pictures or images collected from the internet to obtain the same result. This means that almost everyone who has taken a selfie or shared a photograph of oneself online faces the possibility of a deepfake being constructed in their image.
Deepfake-related security concerns
As deepfakes proliferate, more people are realising that they can be used not only to create non-consensual porn but also as part of disinformation and fake news campaigns with the potential to sway elections and rekindle frozen or low-intensity conflicts.
Deepfakes have three security implications: at the international level, strategic deepfakes have the potential to destroy precarious peace; at the national level, deepfakes may be used to unduly influence elections, and the political process, or discredit opposition, which is a national security concern, and at the personal level, the scope for using Women suffer disproportionately from exposure to sexually explicit content as compared to males, and they are more frequently threatened.
Policy Consideration
Looking at the present situation where the cases of deepfake are on the rise against women and children, the policymakers need to be aware that deepfakes are utilized for a variety of valid objectives, including artistic and satirical works, which policymakers should be aware of. Therefore, simply banning deepfakes is not a way consistent with fundamental liberties. One conceivable legislative option is to require a content warning or disclaimer. Deepfake is an advanced technology and misuse of deepfake technology is a crime.
What are the existing rules to combat deepfakes?
It's worth noting that both the IT Act of 2000 and the IT Rules of 2021 require social media intermediaries to remove deep-fake videos or images as soon as feasible. Failure to follow these guidelines can result in up to three years in jail and a Rs 1 lakh fine. Rule 3(1)(b)(vii) requires social media intermediaries to guarantee that its users do not host content that impersonates another person, and Rule 3(2)(b) requires such content to be withdrawn within 24 hours of receiving a complaint. Furthermore, the government has stipulated that any post must be removed within 36 hours of being published online. Recently government has also issued an advisory to social media intermediaries to identify misinformation and deepfakes.
Conclusion
It is important to foster ethical and responsible consumption of technology. This can only be achieved by creating standards for both the creators and users, educating individuals about content limits, and providing information. Internet-based platforms should also devise techniques to deter the uploading of inappropriate information. We can reduce the negative and misleading impacts of deepfakes by collaborating and ensuring technology can be used in a better manner.
References
- https://timesofindia.indiatimes.com/life-style/parenting/moments/how-social-media-scandals-like-deepfake-impact-minors-and-students-mental-health/articleshow/105168380.cms?from=mdr
- https://www.aa.com.tr/en/science-technology/deepfake-technology-putting-children-at-risk-say-experts/2980880
- https://wiisglobal.org/deepfakes-as-a-security-issue-why-gender-matters/
Introduction
Rajeev Chandrasekhar, Minister of State at the Ministry of Electronics and Information Technology, has emphasised the need for an open internet. He stated that no platform can deny content creators access to distribute and monetise content and that large technology companies have begun to play a significant role in the digital evolution. Chandrasekhar emphasised that the government does not want the internet or monetisation to be in the purview of just one or two companies and does not want 120 crore Indians on the internet in 2025 to be catered to by big islands on the internet.
The Voice for Open Internet
India's Minister of State for IT, Rajeev Chandrasekhar, has stated that no technology company or social media platform can deny content creators access to distribute and monetise their content. Speaking at the Digital News Publishers Association Conference in Delhi, Chandrasekhar emphasized that the government does not want the internet or monetization of the internet to be in the hands of just one or two companies. He argued that the government does not like monopoly or duopoly and does not want 120 crore Indians on the Internet in 2025 to be catered to by big islands on the internet.
Chandrasekhar highlighted that large technology companies have begun to exert influence when it comes to the dissemination of content, which has become an area of concern for publishers and content creators. He stated that if any platform finds it necessary to block any content, they need to give reasons or grounds to the creators, stating that the content is violating norms.
As India tries to establish itself as an innovator in the technology sector, a recent corpus of Rs 1 lakh crore was announced by the government in the interim Budget of 2024-25. As big companies continue to tighten their stronghold on the sector, content moderation has become crucial. Under the IT Rules Act, 11 types of categories are unlawful under IT Act and criminal law. Platforms must ensure no user posts content that falls under these categories, take down any such content, and gateway users to either de-platforming or prosecuting. Chandrasekhar believes that the government has to protect the fundamental rights of people and emphasises legislative guardrails to ensure platforms are accountable for the correctness of the content.
Monetizing Content on the Platform
No platform can deny a content creator access to the platform to distribute and monetise it,' Chandrasekhar declared, boldly laying down a gauntlet that defies the prevailing norms. This tenet signals a nascent dawn where creators may envision reaping the rewards borne of their creative endeavours unfettered by platform restrictions.
An increasingly contentious issue that shadows this debate is the moderation of content within the digital realm. In this vast uncharted expanse, the powers that be within these monolithic platforms assume the mantle of vigilance—policing the digital avenues for transgressions against a conscribed code of conduct. Under the stipulations of India's IT Rules Act, for example, platforms are duty-bound to interdict user content that strays into territories encompassing a spectrum of 11 delineated unlawful categories. Violations span the gamut from the infringement of intellectual property rights to the propagation of misinformation—each category necessitating swift and decisive intervention. He raised the alarm against misinformation—a malignant growth fed by the fertile soils of innovation—a phenomenon wherein media reports chillingly suggest that up to half of the information circulating on the internet might be a mere fabrication, a misleading simulacrum of authenticity.
The government's stance, as expounded by Chandrasekhar, pivots on an axis of safeguarding citizens' fundamental rights, compelling digital platforms to shoulder the responsibility of arbiters of truth. 'We are a nation of over 90 crores today, a nation progressing with vigour, yet we find ourselves beset by those who wish us ill,'
Upcoming Digital India Act
Awaiting upon the horizon, India's proposed Digital India Act (DIA), still in its embryonic stage of pre-consultation deliberation, seeks to sculpt these asymmetries into a more balanced form. Chandrasekhar hinted at the potential inclusion within the DIA of regulatory measures that would sculpt the interactions between platforms and the mosaic of content creators who inhabit them. Although specifics await the crucible of public discourse and the formalities of consultation, indications of a maturing framework are palpable.
Conclusion
It is essential that the fable of digital transformation reverberates with the voices of individual creators, the very lifeblood propelling the vibrant heartbeat of the internet's culture. These are the voices that must echo at the centre stage of policy deliberations and legislative assembly halls; these are the visions that must guide us, and these are the rights that we must uphold. As we stand upon the precipice of a nascent digital age, the decisions we forge at this moment will cascade into the morrow and define the internet of our future. This internet must eternally stand as a bastion of freedom, of ceaseless innovation and as a realm of boundless opportunity for every soul that ventures into its infinite expanse with responsible use.
References
- https://www.financialexpress.com/business/brandwagon-no-platform-can-deny-a-content-creator-access-to-distribute-and-monetise-content-says-mos-it-rajeev-chandrasekhar-3386388/
- https://indianexpress.com/article/india/meta-content-monetisation-social-media-it-rules-rajeev-chandrasekhar-9147334/
- https://www.medianama.com/2024/02/223-rajeev-chandrasekhar-content-creators-publishers/
EXECUTIVE SUMMARY:
A viral video is surfacing claiming to capture an aerial view of Mount Kailash that has breathtaking scenery apparently providing a rare real-life shot of Tibet's sacred mountain. Its authenticity was investigated, and authenticity versus digitally manipulative features were analyzed.
CLAIMS:
The viral video claims to reveal the real aerial shot of Mount Kailash, as if exposing us to the natural beauty of such a hallowed mountain. The video was circulated widely in social media, with users crediting it to be the actual footage of Mount Kailash.
FACTS:
The viral video that was circulated through social media was not real footage of Mount Kailash. The reverse image search revealed that it is an AI-generated video created by Sonam and Namgyal, two Tibet based graphic artists on Midjourney. The advanced digital techniques used helped to provide a realistic lifelike scene in the video.
No media or geographical source has reported or published the video as authentic footage of Mount Kailash. Besides, several visual aspects, including lighting and environmental features, indicate that it is computer-generated.
For further verification, we used Hive Moderation, a deep fake detection tool to conclude whether the video is AI-Generated or Real. It was found to be AI generated.
CONCLUSION:
The viral video claiming to show an aerial view of Mount Kailash is an AI-manipulated creation, not authentic footage of the sacred mountain. This incident highlights the growing influence of AI and CGI in creating realistic but misleading content, emphasizing the need for viewers to verify such visuals through trusted sources before sharing.
- Claim: Digitally Morphed Video of Mt. Kailash, Showcasing Stunning White Clouds
- Claimed On: X (Formerly Known As Twitter), Instagram
- Fact Check: AI-Generated (Checked using Hive Moderation).
