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NETWORK Security Affairs

Inside XCPE, the botnet that turned 1.3M set-top boxes into proxy servers

Google dismantled a 1.3 million-device botnet allegedly built by Android TV box maker Videostrong to enable ad fraud and proxy abuse. Google and its partners dismantled a backdoor called XCPE that had enrolled more than 1.3 million set-top boxes in a botnet. The result of the investigation into the malware operation is the striking part: Videostrong Technology Co., an Android device maker, built and ran the botnet for money. Google says it is highly confident that Videostrong deliberately created, spread and operated the backdoor. The company reportedly sold access to criminal groups and installed their malware on infected devices. The malware was used for ad fraud, secretly added devices to residential proxy networks and installed other malicious software. Google says this was not the work of a rogue employee or a simple coding mistake. The backdoor was found in many device models and brands over several years. Its operation involved dedicated infrastructure and regularly changing configurations. “We assess with high confidence that the backdoor and botnet were intentionally developed, deployed, and operated for financial gain by Videostrong Technology Co., an Android Original Equipment Manufacturer (OEM) and Original Design Manufacturer (ODM).” Google states. “Videostrong monetized the backdoor by selling access to criminal affiliates and loading those affiliates’ malware modules onto infected devices. “ Google has now cut all ties with Videostrong. The company is banned from making devices with pre-installed Google apps. The ban also covers any future subsidiaries or business partners, and Videostrong can no longer supply software to other certified device makers. Videostrong got around Google’s compatibility and security tests with code obfuscation. The malicious code loaded after a device’s first boot, which the tests didn’t catch. Google has changed its review process and is improving how it checks firmware on certified Android TV devices. Google also took legal action against the domains and servers Videostrong used to control the botnet, and against the control domains of over a dozen malware families loaded through the backdoor. Those affiliates spread their modules through other channels too, so Google expects the takedown to cut access to at least 10 million more compromised devices. Japan’s National Police Agency, Lumen, HUMAN Security, Plume, Synthient and TrendAI worked on the operation. The malware has three stages. The primary backdoor, x.cpe (called com.oemservice in some builds), is preloaded in the firmware and runs with system privileges. If a user uninstalls it, it reinstalls itself from the /oem/ partition at the next reboot. It handles communication with the control server and passes work to a loader called com.abc.nexus, which carries its own anti-analysis tricks and sets up the money-making modules. These modules are supplied by other criminals working as affiliates. They can arrive as programs built into the backdoor, software packages added to its loader, or extra apps downloaded later. Many turn the device into a residential proxy, allowing other people to use the victim’s home internet connection to hide their online activity. Others commit ad fraud or install additional backdoors. In other words, a set-top box becomes a proxy server without its owner’s knowledge. The backdoor uses two steps to control infected devices. First, the box sends an HTTP request to download settings, location data and network information. It then maintains a live connection through MQTT, a lightweight messaging protocol, to receive commands from the operators. Google found that all analyzed samples used the same MQTT server to communicate with infected devices. “Additional monetization modules as well as various shell scripts and legitimate applications are hosted remotely and downloaded by infected devices upon command from the operator via the MQTT broker.” continues the report. “A significant majority of these files are hosted as Github releases on operator-owned Github pages. Other files are hosted on operator-controlled servers and file hosting sites.” Through this connection, attackers could secretly install apps, run commands and scripts, take screenshots, record keystrokes and map the victim’s network. They could also disable Google Play Protect’s app verification to install software without the user’s knowledge. Google observed operators taking screenshots, recording keystrokes, collecting account and device information, stealing app lists and system logs, and opening remote command-line sessions. However, most of their activity involved installing, removing and managing malware modules. The malicious files came from several sources. The attackers mainly used GitHub releases hosted on their own accounts, the Filemail file-sharing service and two servers under their control. Network traffic analysis also suggests that the operators managed the command infrastructure through remote interfaces and an EMQX web console, connecting from IP addresses outside the infected device network. Most infected devices are Android TV set-top boxes, but Google also found telehealth devices, karaoke machines and digital signage. One device can run several modules at once, up to three residential proxy kits. That shows Videostrong wants to squeeze every infected device as hard as it can. The proxy and bandwidth-sharing kits named in the report include Linkfog, AppSalt, GaGaNode, BWM, Traffmonetizer, EarnFM and NetNut. Some of those kits enroll devices without asking. AppSalt’s SDK, owned by Honeygain, calls an opt-in function without showing any consent screen, and it stops running if the app came from the official Google Play Store. Ad-fraud modules such as Fission and HiddenView fire off fake ad impressions in the background, and HiddenView also uses hidden browser windows to simulate clicks and scrolling. The configuration shows a well-run operation. MQTT messages carry resource limits for each module, download links per processor type, and priority weights. Devices are assigned to one of six timezone-based pools on ott.szbboys[.]com. Devices report their bandwidth use and alarms back, so the modules stay within set limits. Google says the underlying market is resilient. Backdoor operators, ad-fraud rings and residential proxy providers work as an interconnected supply chain, and when one part gets disrupted they quickly switch to new loaders or rival kits. Lasting change, it says, needs accountability across hardware makers, the residential proxy industry and the broader technology sector. Google wants retailers and distributors to require independent security audits from device manufacturers and to delist any implicated in supply-chain abuse. It says proxy providers’ claims of ethical sourcing need transparent, auditable proof of user consent, and that in its analysis these providers asked for consent only when platform policy forced them to. Silent opt-in remains the most common way devices become exit nodes. For consumers, Google advises caution with apps that pay you for “unused bandwidth” or “sharing your internet”, which are a main way illicit proxy networks grow. Stick to app stores you trust, review permissions for third-party VPNs and proxies, and keep Google Play Protect on. Buy connected devices like set-top boxes only from reputable manufacturers, and check the partner list on Google’s Android TV website. Google also urges mobile platforms, ISPs, online marketplaces and other tech platforms to keep sharing intelligence. “A device manufacturer intentionally infecting their users with malware is an unacceptable breach of trust. By turning everyday hardware into persistent beachheads for criminal affiliates, Videostrong prioritized illicit post-sale recurring revenue over the safety and privacy of its users.” concludes the report. “Downstream hardware brands, white-label resellers, telecommunications providers, and online e-commerce marketplaces also share responsibility for closing this vector.” Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini (SecurityAffairs – hacking, newsletter)

Nov 3, 2026, 09:52 AM Read more →
DATA Security Affairs

NIS2 Makes Board Members Personally Liable for Access Control Decisions

NIS2 Article 20 makes management bodies answerable for the access controls they approve, and boards are starting to ask for proof that those controls work. NIS2 board accountability gives directors a more direct role in cybersecurity. Under Article 20, the management bodies of essential and important entities must approve the cybersecurity risk-management measures required by the directive, oversee their implementation, and can be held liable for infringements, subject to national law. That obligation is live across most of the EU, with four member states going to the Court of Justice in July for failing to notify full transposition. Access control is one of the required measures. Directors are not expected to decide who gets administrator rights or review individual user accounts. They do, however, need to know that access is being controlled, that someone has responsibility for managing the risk, and that problems are being addressed. An estimated 160,000 entities fall within the scope of NIS2 across the EU. Approval is only part of the job Article 20 requires management bodies to both approve cybersecurity risk-management measures and oversee their implementation. It also requires the members of those bodies to undergo cybersecurity training, and to offer comparable training to employees on a regular basis. The measures themselves are set out in Article 21. They include access control policies and asset management, along with the use of multi-factor authentication or continuous authentication solutions where appropriate. Many organizations have traditionally left these decisions to security and IT teams. Under NIS2, the board still needs to know whether the measures it approved are being implemented. Day-to-day responsibility can remain with the CISO and IT teams. The difficulty comes when the person responsible for a risk does not control the budget, systems, or people needed to address it.  Greece’s implementation goes further in defining who carries that responsibility. Its NIS2 law requires essential and important entities to appoint a suitably qualified member of their organization as an Information and Communication Systems Security Officer. The officer coordinates compliance, must have the resources needed to do the job, and operates independently of the company’s data protection officer.  Access problems also need to reach the board in terms that it can act on. If an MFA rollout has failed or administrators have more access than they need, the board needs to understand the risk of leaving it unresolved. The CISO may be responsible for the risk without controlling the budget or teams needed to fix it. The board needs evidence Board reports often show what the access control policy requires, rather than whether it is being followed. For example, a company policy will likely require MFA and the removal of accounts when employees leave. However, the board also needs to know about the exceptions, including old accounts that remain active, excessive privileges, MFA exemptions that have never been reviewed, and suppliers whose access has outlasted their contracts. The board needs information about how the controls are working in practice. In a NIS2 access management report from European password and secrets manager Passwork, regulators from two national cybersecurity authorities and independent security leaders describe boards that have absorbed the liability change and now ask for proof that controls work, where they once accepted a summary of the policy. Organizations should be able to show who can access critical systems, why that access was granted, who approved it, how long it is valid, and when it was changed or revoked. The board needs to know whether that evidence exists and what it says about material access risk. Personal liability raises the stakes Implementation is still catching up in parts of Europe. In July 2026, the European Commission referred Ireland, Spain, France, and the Netherlands to the Court of Justice of the European Union for failing to notify full transposition of NIS2 into national law. The Commission also asked the Court to impose financial sanctions. For organizations in countries where NIS2 has been transposed, regulators have significant enforcement powers. For essential entities, member states must set a maximum fine of at least €10,000,000 or 2% of the global annual turnover, whichever is higher. Important entities are subject to a lower maximum threshold, of at least €7,000,000 or 1.4% of their global annual turnover, in a similar capacity. Article 32 also allows competent authorities, in specific circumstances, to seek the temporary prohibition of someone at CEO or legal representative level from exercising managerial functions in an essential entity. This can happen where enforcement action has failed to produce the required response. It is not an automatic consequence of a cyber incident. Article 20 separately requires member states to ensure that management bodies can be held liable for infringements of Article 21, subject to the applicable rules under national law. Approving the policy is not the end of the board’s involvement. It also needs information on whether the policy is being followed and what is happening with known problems. Verizon’s 2026 Data Breach Investigations Report found credential abuse somewhere in the chain of 39% of breaches, more than any other vector. Stolen credentials also circulate at scale, as the exposed database of 24 billion credential records reported in June showed. Directors should expect an answer on which accounts and credentials reach critical systems, who is responsible for them, and whether that access is being controlled. Give access risk an owner with authority CISOs briefing their boards should be able to say who owns access-control risk and whether that person has the authority to address it. The board also needs evidence of what is happening. When an access problem is identified, someone needs to be responsible for getting it fixed. That might mean removing unnecessary privileges or dealing with an MFA exception that has remained in place. If the fix depends on another team’s budget or resources, the board needs to know. Board reporting should show whether the controls it approved are working, flag significant exceptions that remain unresolved, and who is accountable for closing them. Author the author: Kirsten Doyle has spent 27 years writing about technology and has covered the industry through some of its most significant shifts. Her focus areas include cybersecurity, cloud, channel, enterprise IT, and data centre operations. She works across many formats: news, features, white papers, eBooks, and thought leadership. Kirsten has many years of experience in journalism and editing for both print and digital media, and has supported plenty of go-to-market and PR programmes with technically grounded writing that holds up to scrutiny. She is also a regular writer at Bora.  Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini (SecurityAffairs – hacking, NIS2)

Nov 3, 2026, 07:21 AM Read more →
OS Security Affairs

Apple’s spyware notifications reach the Bundestag: what the BSI says to do now

Apple warns German Bundestag lawmakers of mercenary spyware attacks; BSI urges victims to assume compromise. The German government is warning politicians and public figures that they were targeted by government-backed spyware. The warning follows Apple’s notifications, which began reaching iPhones on October 29, according to the federal cybersecurity office, the BSI. The BSI says members of the Bundestag and other notable people got an Apple alert about an attack with so-called mercenary spyware. “The Federal Office for Information Security ( BSI ) has learned that several members of the German Bundestag and other public figures have received a threat notification from Apple on their devices since October 29, 2026. In the notification, Apple states that it has detected an attack using so-called mercenary spyware . This is commercially developed, advanced spyware that has frequently been used in the past by state actors against specific, targeted individuals.” reads the notice issued by BSI. “The BSI (Federal Office for Information Security) is unaware whether these notifications indicate actual compromises or merely signal attempted attacks.y “ “Germany’s digital minister, Karsten Wildberger, has confirmed that members of the Bundestag and the federal government received warnings from Apple that their iPhones may have been targeted by spyware.” states the report. Digital minister Karsten Wildberger confirmed it on ARD’s Bericht aus Berlin on Sunday, saying there had been “a notification from Apple that certain devices may have been compromised” and that members of both the Bundestag and the federal government were among those warned. Digital minister said the BSI had reacted super quickly and written to everyone affected. Wildberger didn’t say how many politicians got the alerts or who they are. “According to Wildberger, the BSI advised those affected to assume – as a precaution – that their device may have been compromised, because the alerts do not show whether an attack succeeded.” states Euronews. The German government has not revealed who was targeted. Government spokesperson Stefan Kornelius told the Financial Times that officials are taking the incident and Apple’s warning very seriously. However, he did not say which government members received the alerts or whether Chancellor Friedrich Merz was among them. Apple has not commented on the reports, according to Euronews. The Apple warning does not provide all the answers. Apple does not identify the governments behind these attacks, nor does it confirm whether a device was actually infected. Germany’s cybersecurity agency, the BSI, also says it is unclear whether the alerts indicate successful infections or only attempted attacks. Apple says mercenary spyware is far more advanced than common cybercrime tools and that most users will never be targeted. This commercial surveillance software is often used on behalf of governments to spy on specific individuals. It can infect devices through so-called zero-click attacks, which do not require victims to open a message or click a link. In most cases, victims do not notice anything unusual. Once a phone is compromised, the BSI says, attackers can read messages, including in encrypted apps, and access calls, contacts, calendars and location. They can also turn on the camera and microphone. That’s the whole phone, not a corner of it. For recipients the BSI’s advice is concrete. Update the operating system immediately, unless you plan a forensic analysis, and consider turning on Lockdown Mode, which makes new attacks harder but doesn’t remove an existing infection. Lockdown Mode limits some features such as message attachments, link previews and FaceTime calls from unknown people, while calls and plain text messages keep working. If the risk looks high, the BSI suggests replacing the device. That means resetting every account used on it and, to make repeat attacks harder, changing the phone number. Then set a new device passcode, change the passwords of your Apple account and email, and make sure two-factor authentication is on. The BSI recommends turning on Signal’s registration lock and WhatsApp’s two-step verification, with a new PIN for each. It also advises removing any linked devices you don’t recognize. Anyone who received a warning can email the BSI Service Center at service-center@bsi.bund.de. This helps the agency work out how many people may be affected. The agency says a genuine Apple warning never asks you to click links, open files, install apps or profiles, or share passwords and codes. These warnings appear on the lock screen, in settings, by email and at the top of account.apple.com after you sign in. The warnings weren’t limited to Germany. Beirut-based filmmaker Radwan Mortada said on X that Apple had warned him about another attack against his device. He had already been targeted by spyware in 2021. أمس، تلقيتُ إشعاراً أمنياً من شركة Apple تحذّرني فيه من تعرّض هاتفي الآيفون لهجوم تجسّسي موجّه، باستخدام برمجيات متطوّرة من النوع الذي تطوّره شركات مثل NSO Group، المعروفة ببرنامج «بيغاسوس». ولعلّ أخطر ما ورد في التحذير تأكيد Apple أنّ هذا النوع من الهجمات يستهدف أشخاصاً محدّدين… pic.twitter.com/2jFq6F3cvD — رُضوان (@radwanmortada) October 30, 2026 According to his notice, Apple sent the latest warnings to users in 99 countries. Nobody has publicly identified the attackers or the government that may have ordered the attacks. The BSI warned German lawmakers that Apple threat notifications may indicate compromised devices and urged recipients to contact the agency and take protective measures. “Those affected who have received a corresponding warning message from Apple should therefore assume that their device may have been compromised.” BSI concludes. “In a letter dated October 30, 2026, the German Federal Office for Information Security (BSI) alerted members of the German Bundestag to the threat and informed them of necessary measures. Affected individuals were urged to contact the BSI directly .” Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini (SecurityAffairs – hacking, Bundestag)

Nov 3, 2026, 06:24 AM Read more →
OS The Hacker News

Chainstack Reports Production Systems Breach Exposing Customer Data and Password Hashes

Blockchain infrastructure provider Chainstack on Tuesday disclosed that it was targeted in a cyber attack that allowed an unauthorized party to gain access to some parts of its infrastructure. The incident is assessed to be part of a large-scale, artificial intelligence (AI)-powered attack campaign that came to light last week. "An external attacker gained unauthorized access to part of

Nov 3, 2026, 06:16 PM Read more →
OS The Hacker News

cPGuard Update Channel Hijacked to Backdoor Linux Servers and Collect Password Hashes

An attacker broke into the update system of the cPGuard security tool on November 2 and used it to send a malicious script to customers' Linux servers. The script installed a backdoor and collected password hashes and other sensitive files from servers that ran it, cPGuard maker OPSSHIELD said in an advisory. The attacker has since taken some of that data. cPGuard 5.88.25 and later versions

Nov 3, 2026, 03:16 PM Read more →
OS The Hacker News CVE-2026-98432 ↗

Red Hat Patches 9.8-Rated Linux TCP RCE Flaw While Ubuntu Releases Fixes for Testing

Fixed kernels for a use-after-free vulnerability in the Linux kernel's IPv4 TCP code are now available for Red Hat Enterprise Linux 8, 9, and 10, while Ubuntu's fixes for its three newest long-term-support releases remain in its opt-in testing channel with no date for a regular update. The flaw, tracked as CVE-2026-98432, can be reached by a remote, unauthenticated attacker and can

Nov 3, 2026, 11:23 AM Read more →
OS The Hacker News

The 4 Elements of Exposure Prioritization and How to Operationalize Them

Your team is remediating more vulnerabilities than ever, yet your breach risk has barely changed. You’re spending too much time and effort on exposures attackers may never exploit, while higher-risk exposures sit, waiting in the queue. Gartner®’s report on exposure prioritization states that fewer than 10% of vulnerabilities are exploited, yet most are treated as urgent. The report also argues

Nov 3, 2026, 11:18 AM Read more →
OS The Hacker News

Russia-Aligned Gorbag Hackers Exploit WinRAR Flaw to Deploy Data-Stealing Malware

A Russia-aligned threat actor known as Gorbag has been observed using simple information stealer malware in attacks targeting Ukrainian organizations. "Active since at least February 2025, the group has focused exclusively on Ukrainian targets, with a clear preference for law enforcement and justice entities, local administrations near the front line, and the defense sector," ESET researcher

Nov 3, 2026, 11:00 AM Read more →
OS The Hacker News

Hackers Exploit BTCPay Server Flaw to Steal Bitcoin and Litecoin From Hot Wallets

BTCPay Server, a self-hosted, open-source cryptocurrency payment processor, has urged users to install the latest version of its software in response to reports of Bitcoin and Litecoin being stolen from hot wallets on instances running older versions. "Our investigation found that these attacks targeted servers running BTCPay Server 2.4.1 (released on 23 July 2026) or earlier," BTCPay Server

Nov 3, 2026, 08:31 AM Read more →
OS The Hacker News

New Wave of Refrigeration Cyberattacks Hits Supermarkets Across Europe, Forcing Stores to Pull Food

Attackers remotely changed the settings on refrigeration controls at supermarkets in Belgium, Sweden, Estonia and other European countries overnight into Monday, November 2, warming fridges and freezers. No chain reported more than several dozen affected stores, and some had to throw away chilled and frozen food or take it off the shelf. Danfoss, a Danish maker of refrigeration controls,&nbsp

Nov 3, 2026, 07:27 AM Read more →