All news with #remote access trojan tag

🔒 ESET reports Iranian-aligned MuddyWater has deployed a previously undocumented backdoor named MuddyViper against Israeli organizations across academia, engineering, local government, manufacturing, technology, transportation, and utilities, as well as one Egyptian technology company. The intrusions began with spear-phishing PDFs and exploitation of VPN and remote-access vulnerabilities to deliver loaders called Fooder, which decrypt and execute the C/C++ backdoor or drop tunneling proxies and browser-data collectors. MuddyViper implements about 20 commands for reconnaissance, file transfer, command execution, and exfiltration of Windows credentials and browser data; several Fooder variants masquerade as the Snake game and use delayed execution to evade detection.

🛡️ ESET researchers identified a MuddyWater campaign running from 30 September 2024 to 18 March 2025 that primarily targeted organizations in Israel and one confirmed technology victim in Egypt. Operators deployed newly observed custom tools — a reflective loader called Fooder and a C/C++ backdoor named MuddyViper — and abused RMM installers and reverse tunnels. The malware uses Windows CNG for AES-CBC encryption and communicates over HTTPS; operators deliberately minimized hands-on-keyboard activity to hinder detection.

📱 Cleafy researchers disclosed Albiriox, a new Android malware offered as a malware‑as‑a‑service that facilitates on‑device fraud, screen manipulation, and real‑time remote control. The family includes a hard‑coded list of over 400 banking, fintech, payment processor, exchange and wallet apps and is distributed via packed droppers and lookalike Google Play pages using social‑engineering lures. Infections often begin with German‑language SMS or fake PENNY app listings that deliver a dropper APK which requests installation permissions and then deploys the main payload. Albiriox uses an unencrypted TCP C2 and a VNC‑based remote module that abuses Android accessibility services to stream UI elements and bypass FLAG_SECURE, enabling overlays, credential harvesting, and hidden background fraud.

🔒 Arctic Wolf Labs observed a targeted September 2025 campaign in which the Russia-aligned RomCom group used fake browser-update prompts to deliver the Mythic Agent implant via a classic SocGholish chain. Researchers say this is the first observed instance of RomCom pairing SocGholish initial access with a Mythic C2-based loader. The intrusion was stopped before impact, and Arctic Wolf published IOCs and mitigation guidance.

🐺 Group-IB and Ukuk report that the actor known as Bloody Wolf has conducted spear-phishing campaigns since June 2025 targeting Kyrgyzstan and, by October 2025, expanded into Uzbekistan to deliver NetSupport RAT. Attackers impersonate government ministries using malicious PDFs that host Java Archive (JAR) loaders built for Java 8, instructing victims to install Java so the loader can execute. The loader fetches the NetSupport payload and establishes persistence via scheduled tasks, registry entries, and a startup batch script in %APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup.

🔎 Researchers at Group-IB and UKUK have identified a widening campaign by the Bloody Wolf APT that uses streamlined Java-based loaders to deliver NetSupport remote administration software to government targets. The operation, active since late 2023 and observed in Kyrgyzstan from at least June 2025 before spreading to Uzbekistan in early October, relies on convincing PDF lures, spoofed domains and geofenced infrastructure. Simple Java 8 loaders fetch NetSupport over HTTP, add persistence via autorun entries and scheduled tasks, display fake error messages, and include a launch-limit counter to limit execution and avoid detection. The group has shifted from using STRRAT to deploying an older 2013 build of NetSupport Manager and uses a custom JAR generator to mass-produce variants.

🚨 ReliaQuest has uncovered a campaign attributed to the Scattered Lapsus$ Hunters that leverages more than 40 typosquatted domains impersonating Zendesk portals, including deceptive SSO pages designed to harvest credentials. The actors have also been observed submitting fraudulent helpdesk tickets to target support staff, aiming to deploy remote access trojans and other malware. Organizations are advised to enforce MFA with hardware keys, implement IP allowlisting and session timeouts, monitor domains and DNS, and harden chat controls and content filtering to mitigate the risk.

🔒 Arctic Wolf Labs reports that a RomCom payload was delivered via a JavaScript loader known as SocGholish to a U.S.-based civil engineering company, marking the first observed use of this distribution method. The chain relied on fake browser update prompts to run a loader that established a reverse shell, dropped a custom Python backdoor called VIPERTUNNEL, and installed a RomCom DLL loader that launched the Mythic Agent. Attribution to GRU Unit 29155 is assessed at medium-to-high confidence, and the intrusion was blocked before it could progress further.

🦊 Jamf Threat Labs reports a macOS malware chain, named FlexibleFerret, that employs staged scripts, credential‑harvesting decoys and a persistent Go-based backdoor to maintain long-term access. The campaign uses a second-stage shell script that reconstructs download paths and fetches different payloads for arm64 and Intel systems, then unpacks and runs a loader while writing a LaunchAgent for persistence. A decoy app mimics Chrome permission prompts and a Chrome-style password window to steal credentials, which are exfiltrated via the legitimate Dropbox API. The final stage invokes a Golang backdoor, CDrivers, that provides remote command-and-control and extensive data-theft capabilities.

🔐CISA warns that threat actors are actively using commercial spyware and remote-access trojans to target users of mobile messaging apps, combining technical exploits with tailored social engineering to gain unauthorized access. Recent campaigns include abuse of Signal's linked-device feature, Android spyware families ProSpy, ToSpy and ClayRat, a chained iOS/WhatsApp exploit (CVE-2025-43300, CVE-2025-55177) targeting a small number of users, and a Samsung flaw (CVE-2025-21042) used to deliver LANDFALL. CISA urges high-value individuals and organizations to adopt layered defenses: E2EE, FIDO phishing-resistant MFA instead of SMS, password managers, device updates, platform hardening (Lockdown Mode, iCloud Private Relay, app-permission audits, Google Play Protect), and to prefer modern hardware from vendors with strong security records.

🛡️ ThreatFabric has detailed a new Android banking trojan named Sturnus that combines screen-capture, accessibility abuse, and overlays to steal credentials and enable full device takeover. The malware captures decrypted messages from WhatsApp, Telegram, and Signal by recording the device screen, serves region-specific fake banking login screens, and contacts operator servers via WebSocket/HTTP to receive encrypted payloads and enable remote VNC-style control. It resists cleanup by blocking uninstallation and leveraging administrator privileges.

🔒Sturnus is a new Android banking trojan discovered by ThreatFabric that can capture decrypted messages from end-to-end encrypted apps like Signal, WhatsApp, and Telegram. It abuses Accessibility services and on-screen capture to read message content and deploys HTML overlays to harvest banking credentials. The malware also supports real-time, AES-encrypted VNC remote control and obtains Android Device Administrator privileges to resist removal while targeting European financial customers with region-specific overlays.

📰 In episode 444 of the Smashing Security podcast Graham Cluley and guest Tricia Howard examine a refreshingly candid breach response where a company apologised and redirected a ransom payment to cybersecurity research, illustrating how legacy systems can still magnify risk. They unpack a sophisticated hotel-booking malware campaign that abuses trust in apps and CAPTCHAs to deliver PureRAT. The hosts also discuss the rise of autonomous pen testing, AI-turbocharged cybercrime, and practical questions CISOs should be asking on Monday morning, with a featured interview featuring Snehal Antani from Horizon3.ai.

🔒 Trustwave SpiderLabs has identified Eternidade Stealer, a multi-component banking Trojan that combines a Python-based WhatsApp-propagating worm, a Delphi stealer and an MSI dropper to harvest financial credentials and spread laterally. The campaign uses an obfuscated VBScript to deliver two payloads, dynamically retrieves command-and-control via IMAP and activates only on systems using Brazilian Portuguese. Defenders should watch for unexpected MSI or script executions, suspicious WhatsApp messages and indicators linked to the campaign.

🔍 Morphisec observed an AI-enhanced intrusion in October 2025 that targeted a major US real estate firm using the modular Tuoni C2 framework. The campaign began with a Microsoft Teams impersonation and a PowerShell one-liner that spawned a hidden process to retrieve a secondary script. That loader downloaded a BMP file and used least significant bit steganography to extract shellcode, executing it entirely in memory and reflectively loading TuoniAgent.dll. Researchers noted AI-generated code patterns and an encoded configuration pointing to two C2 servers; Morphisec's AMTD prevented execution.

🔒 Cybersecurity researchers disclosed an attempted intrusion against a major U.S. real-estate firm that leveraged the emerging Tuoni C2 and red-team framework. The campaign, observed in mid-October 2025, used Microsoft Teams impersonation and a PowerShell loader that fetched a BMP-steganographed payload from kupaoquan[.]com and executed shellcode in memory. That sequence spawned TuoniAgent.dll, which contacted a C2 server but ultimately failed to achieve its goals. The incident highlights the risk of freely available red-team tooling and AI-assisted code generation being abused by threat actors.

🔒 Researchers identified a ClickFix-based EVALUSION campaign deploying Amatera Stealer and NetSupport RAT, observed in November 2025. The campaign abuses the Windows Run dialog and mshta.exe to launch a PowerShell script that downloads a .NET DLL hosted on MediaFire; the Amatera DLL, packed with PureCrypter, is injected into MSBuild.exe to exfiltrate data. eSentire highlights Amatera's WoW64 SysCalls evasion and conditional NetSupport deployment when domain membership or valuable files are detected.

🔎 The Contagious Interview campaign is delivering trojanized coding tests that fetch heavily obfuscated JavaScript from public JSON-storage services such as JSON Keeper, JSONSilo, and npoint.io. When executed in a Node.js test run the payloads decode and install the BeaverTail infostealer and then stage the InvisibleFerret RAT. NVISO Labs warns attackers are abusing developer trust and legitimate platforms and recommends sandboxing, auditing config files, and blocking suspicious outbound requests.

🔒 Elastic Security Labs and Unit 42 describe a China‑focused campaign in which the actor Dragon Breath uses a multi‑stage loader named RONINGLOADER to deliver a modified Gh0st RAT. The attack leverages trojanized NSIS installers that drop two embedded packages—one benign and one stealthy—to load a DLL and an encrypted tp.png file containing shellcode. The loader employs signed drivers, WDAC tampering, and Protected Process Light abuse to neutralise endpoint protections popular in the Chinese market before injecting a persistent high‑privilege backdoor.

🔐 Palo Alto Networks Unit 42 identified two interconnected 2025 campaigns that used large-scale brand impersonation to deliver variants of the Gh0st remote access Trojan to Chinese-speaking users globally. The adversary evolved from simple droppers (Campaign Trio, Feb–Mar 2025) to sophisticated, multi-stage MSI-based chains abusing signed binaries, VBScript droppers and public cloud storage (Campaign Chorus, May 2025 onward). The report includes representative IoCs and mitigation guidance for Advanced WildFire, Cortex XDR and allied protections.