Android+Malware | Breaking Cybersecurity News | The Hacker News

A new Android backdoor that's embedded deep into the device firmware can silently harvest data and remotely control its behavior, according to new findings from Kaspersky. The Russian cybersecurity vendor said it discovered the backdoor, dubbed Keenadu , in the firmware of devices associated with various brands, including Alldocube, with the compromise occurring during the firmware build phase. Keenadu has been detected in Alldocube iPlay 50 mini Pro firmware dating back to August 18, 2023. In all cases, the backdoor is embedded within tablet firmware, and the firmware files carry valid digital signatures. The names of the other vendors were not disclosed. "In several instances, the compromised firmware was delivered with an OTA update," security researcher Dmitry Kalinin said in an exhaustive analysis published today. "A copy of the backdoor is loaded into the address space of every app upon launch. The malware is a multi-stage loader granting its operators the ...

Cybersecurity researchers have disclosed details of a new mobile spyware platform dubbed ZeroDayRAT that's being advertised on Telegram as a way to grab sensitive data and facilitate real-time surveillance on Android and iOS devices. "The developer runs dedicated channels for sales, customer support, and regular updates, giving buyers a single point of access to a fully operational spyware panel," Daniel Kelley, security researcher at iVerify, said . "The platform goes beyond typical data collection into real-time surveillance and direct financial theft." ZeroDayRAT is designed to support Android versions 5 through 16 and iOS versions up to 26. It's assessed that the malware is distributed via social engineering or fake app marketplaces. The malicious binaries are generated through a builder that's provided to buyers along with an online panel that they can set up on their own server. Once the malware infects a device, the operator gets to see all ...

The distributed denial-of-service ( DDoS ) botnet known as AISURU/Kimwolf has been attributed to a record-setting attack that peaked at 31.4 Terabits per second (Tbps) and lasted only 35 seconds. Cloudflare, which automatically detected and mitigated the activity, said it's part of a growing number of hyper-volumetric HTTP DDoS attacks mounted by the botnet in the fourth quarter of 2025. The attack took place in November 2025. AISURU/Kimwolf has also been linked to another DDoS campaign codenamed The Night Before Christmas that commenced on December 19, 2025. Per Cloudflare, the average size of the hyper-volumetric DDoS attacks during the campaign was 3 billion packets per second (Bpps), 4 Tbps, and 54 requests per second (Mrps), with the maximum rates touching 9 Bpps, 24 Tbps, and 205 Mrps. "DDoS attacks surged by 121% in 2025, reaching an average of 5,376 attacks automatically mitigated every hour," Cloudflare's Omer Yoachimik and Jorge Pacheco said. "In...

Google on Wednesday announced that it worked together with other partners to disrupt IPIDEA, which it described as one of the largest residential proxy networks in the world. To that end, the company said it took legal action to take down dozens of domains used to control devices and proxy traffic through them. As of writing, IPIDEA's website ("www.ipidea.io") is no longer accessible. It advertised itself as the "world's leading provider of IP proxy" with more than 6.1 million daily updated IP addresses and 69,000 daily new IP addresses. "Residential proxy networks have become a pervasive tool for everything from high-end espionage to massive criminal schemes," John Hultquist, Google Threat Intelligence Group's (GTIG) chief analyst, said in a statement shared with The Hacker News. "By routing traffic through a person’s home internet connection, attackers can hide in plain sight while infiltrating corporate environments. By taking do...

The Black Lotus Labs team at Lumen Technologies said it null-routed traffic to more than 550 command-and-control (C2) nodes associated with the AISURU/Kimwolf botnet since early October 2025. AISURU and its Android counterpart, Kimwolf, have emerged as some of the biggest botnets in recent times, capable of directing enslaved devices to participate in distributed denial-of-service (DDoS) attacks and relay malicious traffic for residential proxy services . Details about Kimwolf emerged last month when QiAnXin XLab published an exhaustive analysis of the malware, which turns compromised devices – mostly unsanctioned Android TV streaming devices – into a residential proxy by delivering a software development kit (SDK) called ByteConnect either directly or through sketchy apps that come pre-installed on them. The net result is that the botnet has expanded to infect more than 2 million Android devices with an exposed Android Debug Bridge (ADB) service by tunneling through residentia...

The botnet known as Kimwolf has infected more than 2 million Android devices by tunneling through residential proxy networks, according to findings from Synthient. "Key actors involved in the Kimwolf botnet are observed monetizing the botnet through app installs, selling residential proxy bandwidth, and selling its DDoS functionality," the company said in an analysis published last week. Kimwolf was first publicly documented by QiAnXin XLab last month, while documenting its connections to another botnet known as AISURU. Active since at least August 2025, Kimwolf is assessed to be an Android variant of AISURU. There is growing evidence to suggest that the botnet is actually behind a series of record-setting DDoS attacks late last year. The malware turns infected systems into conduits for relaying malicious traffic and orchestrating distributed denial-of-service (DDoS) attacks at scale. The vast majority of the infections are concentrated in Vietnam, Brazil, India, and ...

Threat actors have been observed leveraging malicious dropper apps masquerading as legitimate applications to deliver an Android SMS stealer dubbed Wonderland in mobile attacks targeting users in Uzbekistan. "Previously, users received 'pure' Trojan APKs that acted as malware immediately upon installation," Group-IB said in an analysis published last week. "Now, adversaries increasingly deploy droppers disguised as legitimate applications. The dropper looks harmless on the surface but contains a built-in malicious payload, which is deployed locally after installation – even without an active internet connection." Wonderland (formerly WretchedCat), according to the Singapore-headquartered cybersecurity company, facilitates bidirectional command-and-control (C2) communication to execute commands in real-time, allowing for arbitrary USSD requests and SMS theft. It masquerades as Google Play, or files of other formats, such as videos, photos, and wedding in...

The North Korean threat actor known as Kimsuky has been linked to a new campaign that distributes a new variant of Android malware called DocSwap via QR codes hosted on phishing sites mimicking Seoul-based logistics firm CJ Logistics (formerly CJ Korea Express). "The threat actor leveraged QR codes and notification pop-ups to lure victims into installing and executing the malware on their mobile devices," ENKI said . "The malicious app decrypts an embedded encrypted APK and launches a malicious service that provides RAT capabilities." "Since Android blocks apps from unknown sources and displays security warnings by default, the threat actor claims the app is a safe, official release to trick victims into ignoring the warning and installing the malware." According to the South Korean cybersecurity company, some of these artifacts masquerade as package delivery service apps. It's being assessed that the threat actors are using smishing texts or phi...

A new distributed denial-of-service (DDoS) botnet known as Kimwolf has enlisted a massive army of no less than 1.8 million infected devices comprising Android-based TVs, set-top boxes, and tablets, and may be associated with another botnet known as AISURU , according to findings from QiAnXin XLab. "Kimwolf is a botnet compiled using the NDK [Native Development Kit]," the company said in a report published today. "In addition to typical DDoS attack capabilities, it integrates proxy forwarding, reverse shell, and file management functions." The hyper-scale botnet is estimated to have issued 1.7 billion DDoS attack commands within a three-day period between November 19 and 22, 2025, around the same time one of its command-and-control (C2) domains – 14emeliaterracewestroxburyma02132[.]su – came first in Cloudflare's list of top 100 domains, briefly even surpassing Google. Kimwolf's primary infection targets are TV boxes deployed in residential network en...

Cybersecurity researchers have disclosed details of two new Android malware families dubbed FvncBot and SeedSnatcher , as another upgraded version of ClayRat has been spotted in the wild. The findings come from Intel 471 , CYFIRMA , and Zimperium , respectively. FvncBot, which masquerades as a security app developed by mBank, targets mobile banking users in Poland. What's notable about the malware is that it's completely written from scratch and is not inspired by other Android banking trojans like ERMAC that have had their source code leaked. The malware "implemented multiple features including keylogging by abusing Android’s accessibility services, web-inject attacks, screen streaming and hidden virtual network computing (HVNC) to perform successful financial fraud," Intel 471 said. Similar to the recently uncovered Albiriox banking malware, the malware is protected by a crypting service known as apk0day that's offered by Golden Crypt. The malicious a...

Cybercriminals associated with a financially motivated group known as GoldFactory have been observed staging a fresh round of attacks targeting mobile users in Indonesia, Thailand, and Vietnam by impersonating government services. The activity , observed since October 2024, involves distributing modified banking applications that act as a conduit for Android malware, Group-IB said in a technical report published Wednesday. Assessed to be active as far back as June 2023, GoldFactory first gained attention early last year, when the Singapore-headquartered cybersecurity company detailed the threat actor's use of custom malware families like GoldPickaxe, GoldDigger, and GoldDiggerPlus targeting both Android and iOS devices. Evidence points to GoldFactory being a well-organized Chinese-speaking cybercrime group with close connections to Gigabud , another Android malware that was spotted in mid-2023. Despite major disparities in their codebases, both GoldDigger and Gigabud have bee...

The threat actor known as Water Saci is actively evolving its tactics, switching to a sophisticated, highly layered infection chain that uses HTML Application (HTA) files and PDFs to propagate via WhatsApp a worm that deploys a banking trojan in attacks targeting users in Brazil. The latest wave is characterized by the attackers shifting from PowerShell to a Python-based variant that spreads the malware in a worm-like manner over WhatsApp Web. "Their new multi-format attack chain and possible use of artificial intelligence (AI) to convert propagation scripts from PowerShell to Python exemplifies a layered approach that has enabled Water Saci to bypass conventional security controls, exploit user trust across multiple channels, and ramp up their infection rates," Trend Micro researchers Jeffrey Francis Bonaobra, Sarah Pearl Camiling, Joe Soares, Byron Gelera, Ian Kenefick, and Emmanuel Panopio said . In these attacks, users receive messages from trusted contacts on WhatsA...

A new Android malware named Albiriox has been advertised under a malware-as-a-service (MaaS) model to offer a "full spectrum" of features to facilitate on-device fraud (ODF), screen manipulation, and real-time interaction with infected devices. The malware embeds a hard-coded list comprising over 400 applications spanning banking, financial technology, payment processors, cryptocurrency exchanges, digital wallets, and trading platforms. "The malware leverages dropper applications distributed through social engineering lures, combined with packing techniques, to evade static detection and deliver its payload," Cleafy researchers Federico Valentini, Alessandro Strino, Gianluca Scotti, and Simone Mattia said . Albiriox is said to have been first advertised as part of a limited recruitment phase in late September 2025, before shifting to a MaaS offering a month later. There is evidence to suggest that the threat actors are Russian-speaking based on their activity o...

Cybersecurity researchers have disclosed details of a new Android banking trojan called Sturnus that enables credential theft and full device takeover to conduct financial fraud. "A key differentiator is its ability to bypass encrypted messaging," ThreatFabric said in a report shared with The Hacker News. "By capturing content directly from the device screen after decryption, Sturnus can monitor communications via WhatsApp, Telegram, and Signal." Another notable feature is its ability to stage overlay attacks by serving fake login screens atop banking apps to capture victims' credentials. According to the Dutch mobile security company, Sturnus is privately operated and is currently assessed to be in the evaluation stage. Artifacts distributing the banking malware are listed below - Google Chrome ("com.klivkfbky.izaybebnx") Preemix Box ("com.uvxuthoq.noscjahae") The malware has been designed to specifically single out financial inst...

Cybersecurity researchers have disclosed details of a new Android remote access trojan (RAT) called Fantasy Hub that's sold on Russian-speaking Telegram channels under a Malware-as-a-Service (MaaS) model. According to its seller, the malware enables device control and espionage, allowing threat actors to collect SMS messages, contacts, call logs, images, and videos, as well as intercept, reply, and delete incoming notifications. "It's a MaaS product with seller documentation, videos, and a bot-driven subscription model that helps novice attackers by providing a low barrier to entry," Zimperium researcher Vishnu Pratapagiri said in a report last week. "Because it targets financial workflows (fake windows for banks) and abuses the SMS handler role (for intercepting 2-factor SMS), it poses a direct threat to enterprise customers using BYOD and to any organization whose employees rely on mobile banking or sensitive mobile apps." The threat actor, in their...

The North Korea-affiliated threat actor known as Konni (aka Earth Imp, Opal Sleet, Osmium, TA406, and Vedalia) has been attributed to a new set of attacks targeting both Android and Windows devices for data theft and remote control. "Attackers impersonated psychological counselors and North Korean human rights activists, distributing malware disguised as stress-relief programs," the Genians Security Center (GSC) said in a technical report. What's notable about the attacks targeting Android devices is also the destructive ability of the threat actors to exploit Google's asset tracking service, Find Hub (formerly Find My Device), to remotely reset victim devices, thereby leading to the unauthorized deletion of personal data. The activity was detected in early September 2025. The development marks the first time the hacking group has weaponized legitimate management functions to remotely reset mobile devices. The activity is also preceded by an attack chain in whi...

Cybersecurity researchers have shed light on two different Android trojans called BankBot-YNRK and DeliveryRAT that are capable of harvesting sensitive data from compromised devices. According to CYFIRMA, which analyzed three different samples of BankBot-YNRK, the malware incorporates features to sidestep analysis efforts by first checking its running within a virtualized or emulated environment, and then extracting device details such as the manufacturer and model name to ascertain if it's being executed on a real device. BankBot-YNRK also checks if the device is manufactured by Oppo, or is running on ColorOS, a version of the Android operating system that's used on devices made by the Chinese original equipment manufacturer (OEM). "The malware also includes logic to identify specific devices," CYFIRMA said. "It verifies whether the device is a Google Pixel or a Samsung device and checks if its model is included in a predefined list of recognized or suppo...

Cybersecurity researchers have disclosed details of a new Android banking trojan called Herodotus that has been observed in active campaigns targeting Italy and Brazil to conduct device takeover ( DTO ) attacks. "Herodotus is designed to perform device takeover while making first attempts to mimic human behaviour and bypass behaviour biometrics detection," ThreatFabric said in a report shared with The Hacker News. The Dutch security company said the Trojan was first advertised in underground forums on September 7, 2025, as part of the malware-as-a-service (MaaS) model, touting its ability to run on devices running Android version 9 to 16. It's assessed that while the malware is not a direct evolution of another banking malware known as Brokewell , it certainly appears to have taken certain parts of it to put together the new strain. This includes similarities in the obfuscation technique used, as well as direct mentions of Brokewell in Herodotus (e.g., "BRKWL_...

A rapidly evolving Android spyware campaign called ClayRat has targeted users in Russia using a mix of Telegram channels and lookalike phishing websites by impersonating popular apps like WhatsApp, Google Photos, TikTok, and YouTube as lures to install them. "Once active, the spyware can exfiltrate SMS messages, call logs, notifications, and device information; taking photos with the front camera; and even send SMS messages or place calls directly from the victim's device," Zimperium researcher Vishnu Pratapagiri said in a report shared with The Hacker News. The malware is also designed to propagate itself by sending malicious links to every contact in the victim's phone book, indicating aggressive tactics on the part of the attackers to leverage compromised devices as a distribution vector. The mobile security company said it has detected no less than 600 samples and 50 droppers over the last 90 days, with each successive iteration incorporating new layers of o...

Cybersecurity researchers have discovered two Android spyware campaigns dubbed ProSpy and ToSpy that impersonate apps like Signal and ToTok to target users in the United Arab Emirates (U.A.E.). Slovak cybersecurity company ESET said the malicious apps are distributed via fake websites and social engineering to trick unsuspecting users into downloading them. Once installed, both the spyware malware strains establish persistent access to compromised Android devices and exfiltrate data. "Neither app containing the spyware was available in official app stores; both required manual installation from third-party websites posing as legitimate services," ESET researcher Lukáš Štefanko said . Notably, one of the websites distributing the ToSpy malware family mimicked the Samsung Galaxy Store, luring users into manually downloading and installing a malicious version of the ToTok app." The ProSpy campaign, discovered in June 2025, is believed to have been ongoing since 2024, ...