All news with #malware tag

🔍 Aryaka Threat Research Lab has identified a campaign that distributes resume-like attachments to target HR and recruiting staff, deploying a component named BlackSanta that attempts to disable endpoint detection and response. The multi-stage infection chain performs system reconnaissance, sandbox and VM checks, and geographic and language filtering before downloading further payloads. Attackers appear Russian-speaking and leverage routine hiring workflows to increase success, while encrypted communications and data exfiltration help maintain persistence.

🚨 BeatBanker is a sophisticated Android trojan targeting Brazilian users through counterfeit pages that mimic Google Play and legitimate services such as INSS Reembolso or Starlink. The malware installs in staged downloads, injects encrypted modules into RAM after device and country checks, and avoids analysis by detecting emulators. It deploys a Monero miner that evades power optimizers by playing near‑inaudible audio and uses Accessibility abuse to overlay screens and divert crypto transfers. Users should stick to official stores, scrutinize permissions, and run up‑to‑date anti‑malware.

🛡️ Researchers at Aryaka uncovered a Russian-speaking threat actor using targeted spear-phishing emails that delivered ISO attachments masquerading as resumes to deploy a new EDR-killing module named BlackSanta. The multi-stage infection leverages a malicious .LNK to launch a PowerShell script that extracts hidden code via steganography and runs payloads in memory. The chain also uses DLL sideloading with a legitimate SumatraPDF executable and a malicious DWrite.dll, and performs extensive fingerprinting and environment checks to evade sandboxes. BlackSanta disables and terminates security tooling, adjusts Microsoft Defender settings and suppresses notifications to minimize user alerts.

🛡️Kaspersky researchers have uncovered BeatBanker, an Android malware campaign that lures victims with fake Starlink app pages and sideloaded APKs. The threat blends banking-trojan capabilities with a modified XMRig Monero miner and, in recent variants, deploys the BTMOB RAT for full device takeover. BeatBanker uses in-memory DEX loading, environment checks, a faux Play Store update prompt, and a near‑inaudible MP3-based persistence mechanism to evade detection.

🧟 A new 'Zombie ZIP' technique hides malware by declaring compressed entries as uncompressed, causing many AV and EDR engines to misinterpret DEFLATE data as raw bytes and miss signatures. Researcher Chris Aziz reported it bypassed 50 of 51 VirusTotal engines and published a PoC with sample archives. CERT/CC assigned CVE-2026-0866 and advises vendors to validate compression method fields and implement integrity checks.

🛡️ Cybersecurity researchers at Black Lotus Labs have identified a novel malware family, KadNap, that has infected over 14,000 edge devices — primarily Asus routers — since first observed in August 2025. KadNap uses a custom Kademlia-based DHT to conceal its control infrastructure and build a resilient peer-to-peer botnet. Infected devices are being offered as resident proxies by a service named Doppelgänger, complicating attribution and abuse tracking.

🔒 KadNap is a newly observed botnet that compromises primarily ASUS routers and other edge devices to assemble a distributed proxy network. Since August 2025 it has grown to roughly 14,000 nodes and uses a modified Kademlia Distributed Hash Table (DHT) protocol to conceal command-and-control infrastructure and complicate takedowns. Infections begin when a malicious script (aic.sh) is fetched from 212.104.141.140, which installs an ELF binary named kad and establishes persistence via a cron job that runs every 55 minutes. Researchers at Black Lotus Labs link KadNap to the Doppelganger/Faceless proxy service that sells access to infected devices, and Lumen has blocked related traffic on its network while preparing indicators of compromise.

🛡️ Modern malware increasingly uses mathematical and timing checks to avoid analysis. The Picus Red Report™ 2026 found Virtualization/Sandbox Evasion (T1497) surged to the #4 technique in 2025, appearing in 20% of samples. Threats like Blitz and LummaC2 use system profiling, trigonometry-based mouse analysis, and CPU timing comparisons to detect sandboxes and abort execution. Organizations should shift from file analysis to continuous behavioral validation using AEV and BAS.

⚠️ JFrog researchers discovered a malicious npm package published as "@openclaw-ai/openclawai" that impersonates an OpenClaw installer and executes a multi-stage infection chain delivering a remote access trojan. During installation a postinstall script places a binary on the PATH, which runs an obfuscated setup that simulates a legitimate CLI installer and prompts for administrator credentials. The second-stage payload, internally named GhostLoader, installs persistently, harvests credentials, browser data, wallets, SSH keys and Apple Keychain entries, and exposes a SOCKS5 proxy for remote operators.

🔍 Since April 2024 ESET documents the reactivation of Sednit’s advanced implant team, which now deploys paired implants BeardShell and Covenant to maintain resilient command-and-control through distinct cloud providers. A SlimAgent keylogger found in Ukraine shows clear code lineage to the 2010-era Xagent backdoor, while BeardShell executes PowerShell in a .NET runtime and communicates via Icedrive using an obfuscation pattern previously seen in Xtunnel. Covenant is a heavily modified open-source framework adapted for long-term espionage with cloud-backed protocols, and ESET maps observed behaviors to ATT&CK techniques and publishes IoCs.

🔐 Researchers at BlueVoyant describe a Microsoft Teams phishing campaign that social-engineers employees into initiating Quick Assist remote sessions to install a newly observed backdoor, A0Backdoor. Attackers deliver digitally signed MSI installers and use DLL sideloading with legitimate Microsoft binaries to load a malicious hostfxr.dll that decrypts and runs shellcode. The backdoor fingerprints hosts, communicates with command-and-control over DNS MX queries with encoded subdomains, and has been observed targeting financial and healthcare organizations.

🚨 JFrog researchers found a malicious npm package, @openclaw-ai/openclawai, uploaded on March 3, 2026 and downloaded 178 times, that masquerades as an OpenClaw installer to deploy a remote access trojan and harvest sensitive macOS data. It uses a postinstall hook and a global reinstallation to expose a CLI entry point, and the staged GhostLoader payload is delivered encrypted from a C2 server and run as a detached background process. The installer displays a polished fake CLI and an iCloud Keychain prompt to capture system passwords and prompts users for Full Disk Access to unlock Apple Notes, iMessage, Safari history and Mail. Collected files — Keychain databases, browser cookies, crypto wallets, SSH and cloud credentials — are archived and exfiltrated via direct upload, the Telegram Bot API and GoFile.io, while the RAT maintains persistence, clipboard monitoring and browser session cloning.

🔒 Two Google Chrome extensions were modified following apparent ownership transfers, allowing attackers to remotely deliver JavaScript payloads, inject code, and harvest sensitive data from users. The affected extensions — QuickLens (~7,000 users) and ShotBird (~800 users) — changed owners in early 2026 and began polling C2 servers for runtime payloads. The update to QuickLens stripped security headers to bypass cross-origin protections, while ShotBird used a fake Chrome-update lure to pivot from browser compromise to host-level execution. Users should remove these extensions, audit browsers, and enterprises should treat extensions as supply-chain risk.

🔒 Researchers at MalBeacon observed the threat actor Velvet Tempest using a ClickFix malvertising chain to trick victims into pasting obfuscated commands into the Windows Run dialog. Operators leveraged nested cmd.exe chains and legitimate utilities (including finger.exe and csc.exe) to stage loaders, compile .NET components, and deploy Python-based persistence under C:\ProgramData. The intrusion staged DonutLoader and retrieved the CastleRAT backdoor, though Termite ransomware was not deployed during the observed exercise.

🤖 Microsoft’s Threat Intelligence report warns that threat actors are increasingly using generative AI across all stages of cyberattacks to accelerate execution and lower technical barriers. Attackers employ models to draft phishing lures, generate realistic fake identities and resumes, produce or debug malware, and scaffold infrastructure. Groups like Jasper Sleet and Coral Sleet have used AI in remote IT worker schemes, while operators test jailbreaking and agentic techniques. Microsoft advises treating these campaigns as insider risks and strengthening identity controls, credential monitoring, and protections around AI systems.

⚠ Attackers have shifted ClickFix phishing to use the Windows + X → I shortcut to open Windows Terminal, prompting victims to paste malicious PowerShell via fake CAPTCHAs and verification prompts. This avoids detections focused on Run (Win+R) and undermines basic security training. Microsoft says the campaign launches layered, persistent chains that decode embedded hex, download a renamed 7-Zip binary to extract payloads, establish persistence, apply Defender exclusions, and exfiltrate data.

⚠️ Bitdefender reveals that the Pakistan-aligned actor Transparent Tribe (APT36) has adopted AI-assisted coding to mass-produce disposable malware implants using niche languages like Nim, Zig, Crystal and Rust. The campaign targets Indian government entities and embassies while abusing trusted platforms such as Slack, Discord, Supabase, Google Sheets and Firebase to hide C2. Phishing via ZIP/ISO attachments or PDF lures delivers LNK shortcuts that run PowerShell in memory and fetch backdoors, often followed by deployment of Cobalt Strike and Havoc for post-compromise activity.

🛡️ Researchers at Push Security detail an InstallFix scheme that clones legitimate CLI install pages to trick users into running malicious 'curl-to-bash' and PowerShell commands. A mirrored Claude Code documentation page was found delivering encoded download commands that launch mshta.exe and related processes to retrieve a binary. The active payload is Amatera, an info-stealer sold as a MaaS, and the phony pages are being promoted through Google Ads and hosted on legitimate platforms, increasing their evasiveness.

🔍 Securonix Threat Research has disclosed a multi-stage campaign named VOID#GEIST that leverages obfuscated batch scripts to stage a portable Python runtime and deploy encrypted RAT payloads including XWorm, AsyncRAT, and Xeno RAT. The chain retrieves ZIP archives from a TryCloudflare domain, extracts a Python loader (runn.py) and encrypted shellcode blobs, then decrypts and injects them directly into separate explorer.exe processes using Early Bird APC injection. The initial stage displays a decoy PDF while a hidden PowerShell relaunches the batch, and persistence is established at the user level via an auxiliary script placed in the Startup folder to minimize forensic artifacts.

🛡️ The Media Trust reports that online advertisements are increasingly exploited to deliver malware, and malvertising now surpasses email and direct hacks as the leading global delivery vector. Millions of infected creatives or scripts can propagate across publishers in seconds, and attackers are leveraging AI to produce adaptive malware that changes by location, browser, or device. Notable examples include Ghost Cat, Click Fix and SocGholish, while the company warns of emerging AI-assisted evasion and the abuse of adtech infrastructure.