Telecom
Sophos Research Reveals that Attackers Are Using Log4Shell Vulnerability to Deliver Backdoors to Virtual Servers

Sophos, a global leader in next-generation cybersecurity, has released findings on how attackers are using the Log4Shell vulnerability to deliver backdoors and profiling scripts to unpatched VMware Horizon servers, paving the way for persistent access and future ransomware attacks. A new technical paper, “Horde of Miner Bots and Backdoors Leveraged Log4J to Attack VMware Horizon Servers,” details the tools and techniques used to compromise the servers and deliver three different backdoors and four cryptominers. The backdoors are possibly delivered by Initial Access Brokers.

Log4Shell is a remote code execution vulnerability in the Java logging component, Apache Log4J, which is embedded in hundreds of software products. It was reported and patched in December 2021.
“Widely used applications such as VMware Horizon that are exposed to the internet and need to be manually updated, are particularly vulnerable to exploitation at scale,” said Sean Gallagher, senior security researcher at Sophos. “Sophos detections reveal waves of attacks targeting Horizon servers, starting in January, and delivering a range of backdoors and cryptominers to unpatched servers, as well as scripts to collect some device information. Sophos believes that some of the backdoors may be delivered by Initial Access Brokers looking to secure persistent remote access to a high value target that they can sell on to other attackers, such as ransomware operators.”
The multiple attack payloads Sophos detected using Log4Shell to target vulnerable Horizon servers include:
· Two legitimate remote monitoring and management tools, Atera agent and Splashtop Streamer, likely intended for malicious use as backdoors
· The malicious Sliver backdoor
· The cryptominers z0Miner, JavaX miner, Jin and Mimu
· Several PowerShell-based reverse shells that collect device and backup information
Sophos’ analysis revealed that Sliver is sometimes delivered together with Atera and PowerShell profiling scripts and is used to deliver the Jin and Mimu variants of the XMrig Monero miner botnet.
According to Sophos, the attackers are using several different approaches to infect targets. While some of the earlier attacks used Cobalt Strike to stage and execute the cryptominer payloads, the largest wave of attacks that began in mid-January 2022, executed the cryptominer installer script directly from the Apache Tomcat component of the VMware Horizon server. This wave of attacks is ongoing.
“Sophos’ findings suggest that multiple adversaries are implementing these attacks, so the most important protective step is to upgrade all devices and applications that include Log4J with the patched version of the software. This includes patched versions of VMware Horizon if organizations use the application in their network,” said Gallagher.
“Log4J is installed in hundreds of software products and many organizations may be unaware of the vulnerability lurking in within their infrastructure, particularly in commercial, open-source or custom software that doesn’t have regular security support. And while patching is vital, it won’t be enough if attackers have already been able to install a web shell or backdoor in the network. Defense in depth and acting upon any detection of miners and other anomalous activity is critical to avoid falling victim to such attacks.”

For further information read the article “Horde of Miner Bots and Backdoors Leveraged Log4J to Attack VMware Horizon Servers” on Sophos News.
Sophos has closely monitored attack activity related to the Log4Shell vulnerability and has published a number of in depth technical and advisory reports, including Log4Shell Hell – Anatomy of an Exploit Outbreak, Log4Shell Response and Mitigation Recommendations, Inside the Code: How the Log4Shell Exploit Works, and Log4Shell: No Mass Abuse, But No Respite, What Happened?
Additional Resources
· Sophos endpoint products, such as Intercept X, protect users by detecting the actions and behaviors of attackers
. Further details on the evolving cyberthreat landscape can be found in the Sophos 2022 Threat Report
. Tactics, techniques, and procedures (TTPs) and more for different types of threats are available on SophosLabs Uncut, which provides Sophos’ latest threat intelligence
. Information on attacker behaviors, incident reports and advice for security operations professionals is available on Sophos News SecOps
. Learn more about Sophos’ Rapid Response Service that contains, neutralizes and investigates attacks 24/7
The four top tips for responding to a security incident from Sophos Rapid Response and the Managed Threat Response Team
Telecom
NCC Ranked Among Top 3 MDAs for Best Website Performance in 2025

Bureau of Public Service Reforms (BPSR) has named the Nigerian Communications Commission (NCC) among the top three Ministries, Departments and Agencies (MDAs) of the Federal Government with the Best Ranking in Website Performance for 2025.

L-R: Head Special Projects, Nigerian Export Promotion Council (NEPC), Salamatu Andu; Executive Commissioner, Technical Services, Nigerian Communication Commission (NCC), Engr. Abaraham Oshadame; Director General Bureau of Public Service Reforms (BPSR), Head Customer Support Service, Galaxy Backbone, Rosemary Ehize; Secretary to the ES. Nigerian Content Development and Monitoring Board, Tahir Aminu at the BPSR award ceremony for top four MDAs in BPSR Website Performance and Ranking 2025 at the BPSR office on Tuesday, 23rd December, 2025.
This is coming barely three weeks after the telecom regulator was recognized as one of the top five best-performing Federal Government agencies for 2025 by the Presidential Enabling Business Environment Council (PEBEC) – a testament to the Commission’s consistency in investment in technology for ensuring efficient service delivery.
In the BPSR 2024/2025 scorecard ranking of agencies’ websites, the NCC came second in the ranking, trailing behind Galaxy Backbone Limited, which came first while the Nigeria Export Promotion Council (NEPC) clinched the third position, from a pool of 235 MDAs, whose website were evaluated.
BPSR deployed 14 evaluation criteria in include MDA’s website compliance with .gov.ng domain name, appearance and aesthetics (look and feel) of the website, content, relevance to MDAs mandate/government policy and the website’ structure.
Others include website’s responsiveness (device compatibility), security, load time, usability/ease of navigation, availability/uptime, functionality, interactivity, accessibility and capacity building.
The recognition was announced at the official release of Federal Government 2024/2025 Scorecard Ranking for MDAs’ Website held at the Federal Ministry of Finance Auditorium in Abuja on Monday (December 22, 2025) while the award presentation took place at BPSR’s Office on Tuesday (December 23, 2025).
The award, which is an important index metric of the National e-Government Masterplan for determining the Nigeria e-Government Status, was received by the Commission in recognition of its commitment to maintaining a world-class website that enhances service delivery to the citizens.
Receiving the award on behalf of the Executive Vice Chairman of the NCC, Dr. Aminu Maida, the NCC’s Executive Commissioner, Technical Services, Abraham Oshadami, appreciated the BPSR for the recognition, describing the award as “another encouragement for the Commission to be a better public service institution leveraging digital platforms such as our web presence to enhance public service delivery to our various stakeholders, thereby implementing the Federal Government’s Ease of Doing Business policy direction.”
While presenting the award to the NCC, alongside other two agencies, BPSR’s Director-General, Mr. Dasuki Arabi, commended the top three for their proactive decisions in maintaining world-class websites, which are compliant with the Federal Government’s policy direction in effective and efficient service delivery to the citizens.
According to the DG, the 2024/2025 MDA’s websites’ ranking represents a collective effort of federal public institutions in Nigeria to be transparent, accountable and open in governance, as well as a confirmation to align with global best practices in service delivery to the citizens.
Developed about six years ago, Arabi said as a result of the annual ranking, more public institutions have indicated readiness to embrace reforms, and align with the policy direction of the current administration’s Renewed Hope agenda on improve governance for effective service delivery, as introduced by His Excellency President Bola Ahmed Tinubu.
“The ideals of harnessing and deploying technological tools for service delivery has become imperative following the COVID pandemic, and distortions of socio-economic system of nations, culminating in the evolution of competitiveness, cost effectiveness, and agile governance.
“As engine room of governance, it behoves on us in the public service to perform our statutory duties and we must put in place technological innovations and standardized websites to operate services as well as deliver service needs to citizens,” he said.
The Scorecard exercise, he said, is part of the BPSR reform broader function of conducting research on reform implementation efforts and presenting ‘best practice’ models to the entire Public Service, and to among others, improve access to government information, facilitate seamless financial transaction, eliminate corruption and cyber theft, as well as facilitate access to government services.
Speaking on the rigorous nature of the exercise that produced the top three winners, the DG said “in the past few weeks members of the Scorecard Jury drawn from inter-Ministerial Agencies, had worked tirelessly to mill websites of selected MDAs through a rigorous process of enduring criteria for the ranking and the outcome had also passed through a quality assurance mechanism to validate the outcome.”
Telecom
Oyedele Dismisses Claims Bank Accounts Without TIN Will Be Frozen

Taiwo Oyedele, Chairman of the Presidential Committee on Fiscal Policy and Tax Reforms, has dismissed reports that bank accounts not linked to a Tax Identification Number (TIN) will be frozen or automatically debited from January 1, 2026.

Taiwo Oyedele
Oyedele described the claims as false and misleading, warning Nigerians against panic over misinformation surrounding recent tax and financial reforms.
In a post on his X handle Tuesday morning, he wrote: “Don’t let anyone manipulate you. Your bank account is safe. Misinformation makes you panic and fear a reform that is designed to help you.
“When they tell you that your account will be frozen or automatically debited from January 2026, ask them for the evidence in the new law. Be wise.”
He stressed that no provision in the new tax laws authorises the freezing of bank accounts, adding that the rumours are part of widespread misrepresentation of the reforms.
The committee chairman reiterated that the reforms are intended to simplify Nigeria’s tax system and ease the burden on ordinary citizens, not to impose punitive measures on bank customers.
Telecom
Amazon Blocks 1,800 North Koreans From Job Applications

US tech giant, Amazon has disclosed that it blocked more than 1,800 North Koreans from applying for jobs, amid growing concerns that Pyongyang is deploying large numbers of IT workers overseas to earn and launder funds.

Amazon
In a LinkedIn post, Amazon’s Chief Security Officer, Stephen Schmidt, said North Korean nationals have been attempting to secure remote IT roles with companies around the world, particularly in the United States.
He noted that the company recorded nearly a one-third increase in such applications over the past year.
According to Schmidt, many of the applicants operate through so-called “laptop farms” — computers physically located in the US but remotely controlled from abroad.
He warned that the issue is not unique to Amazon and is likely occurring at scale across the tech industry.
He added that common red flags include incorrectly formatted phone numbers and questionable academic credentials.
The issue has previously drawn the attention of US authorities. In July, a woman in Arizona was sentenced to more than eight years in prison for running a laptop farm that helped North Korean IT workers obtain remote jobs at more than 300 US companies.
Officials said the scheme generated over $17 million in revenue for both the woman and North Korea.
Last year, South Korea’s intelligence agency also warned that North Korean operatives were using LinkedIn to pose as recruiters, approaching South Koreans working at defence companies in an attempt to steal sensitive technological information.
“North Korea is actively training cyber personnel and infiltrating key locations worldwide,” Hong Min, an analyst at the Korea Institute for National Unification, told AFP.
He added that, given Amazon’s business model, the motivation behind such operations is largely economic, with a high likelihood of attempts to steal financial assets.
North Korea’s cyber warfare programme dates back to at least the mid-1990s and has since expanded into a cyber unit of about 6,000 personnel known as Bureau 121, according to a 2020 US military report.
In November, Washington announced sanctions against eight individuals accused of being state-sponsored hackers, alleging their illicit activities were carried out to fund North Korea’s nuclear weapons programme.
The US Treasury has also accused North Korea-linked cybercriminals of stealing more than $3 billion over the past three years, primarily through cryptocurrency-related crimes.
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