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5 stories in the last 30d

Hackers Deploy Casbaneiro Banking Trojan That Activates When Victims Open Bank Websites

Fortinet details Casbaneiro banking Trojan campaign hitting Latin American bank customers via invoice-themed PDF phishing, with AutoIt loading, RegSvcs.exe injection, and bank-site-triggered activation.

Fortinet identified an August 2026 Casbaneiro banking Trojan campaign targeting users in Argentina, Peru, Colombia, and Mexico through phishing PDFs styled as urgent invoices or legal notices. The staged chain uses IP-based geo-filtering, a Base64-encoded ZIP, an HTA file, and a legitimate AutoIt interpreter before injecting into RegSvcs.exe or mobsync.exe and persisting via a Startup shortcut. The Trojan exfiltrates address book and Outlook data unencrypted, stays dormant until victims visit targeted bank sites, then accepts commands for keyboard control, clipboard pasting, file execution, and command execution. It uses an expected HTTP 403 response from a second server and malformed HTTP requests to complicate network analysis.

Cyber Security News · 2d agoMalware in the wild

Casbaneiro Banking Trojan Uses Distributed C2 Servers to Evade Detection and Target Bank Users

Casbaneiro banking Trojan targets Latin American bank users via phishing PDFs, geofencing, AutoIt staging, and distributed C2 servers to evade detection.

FortiGuard Labs detailed a Casbaneiro banking Trojan campaign observed in August 2026 targeting users in Argentina, Peru, Colombia, and Mexico via fake invoice and legal-notice emails. The operation uses geofenced landing pages, an HTA downloader with WMI-based sandbox checks, a legitimate AutoIt interpreter, and process injection into RegSvcs.exe (fallback mobsync.exe). C2 activation is conditional on victims visiting banking websites, enabling keyboard control, clipboard manipulation, and fake overlay windows for bank-focused fraud, while distributed exfiltration servers and unusual HTTP 403-based signaling hinder analyst correlation.

GBHackers · 3d agoMalware in the wild1

Free streaming boxes may be routing criminal traffic through your home

Researchers found SuperBox streaming boxes and the CyberFlix TV app enroll home connections into the Popanet residential proxy network, routing criminal traffic.

Researchers found that SuperBox devices and the CyberFlix TV app, distributed through SuperBox's custom app store, contain Popanet proxy functionality that registers the device with servers controlled by the proxy operator, enrolling household connections into residential proxy networks. The reported configuration weakens Android safeguards with exposed ADB access, root-level privileges without authentication, and removal of app-install protections. Plume's research warns these proxy networks can also function as malware-delivery platforms, and the FBI notes foreign entities use residential proxies to conceal activity such as credential stuffing and account abuse. Malwarebytes advises disconnecting and replacing affected SuperBox/CyberFlix devices rather than factory-resetting them.

Malwarebytes Labs · 12d agoMalware in the wild

Android malware creates a hidden copy of your banking app

Group-IB found the Gigabud Android banking trojan clones banking apps into a hidden work profile to conduct fraud undetected.

Group-IB researchers found the Gigabud Android banking trojan installs Vwork, a trojanized version of the open-source Shelter app, to create a separate Android work profile and clone the victim's banking app into it. The operator then performs fraudulent transactions from the cloned app, separating risky activity from malware detections in the personal profile and potentially bypassing bank-side anti-fraud checks. Victims are lured into sideloading fake airline, tax, or government apps via phishing sites and messages, then grant Accessibility, overlay, and battery-optimization permissions that enable remote control and credential-theft overlays. Malwarebytes detects Gigabud components under multiple Android.Trojan.Banker signatures.

Malwarebytes Labs · 5d agoMalware 3 sources1

When scanners miss the attack: how Cloudflare Client-Side Security protects storefronts

Cloudflare's Page Shield ML uncovered four malicious JavaScript campaigns on storefronts, including affiliate fraud and a remote-backdoor script, that VirusTotal and URLScan missed.

Cloudflare's Page Shield ML detected four client-side JavaScript operations (eight payloads) in live traffic on online storefronts, enabling affiliate commission hijacking, clickless affiliate theft via hidden iframes, user tracking with a remote-code backdoor, and cloaking of paid mobile visitors. Seven of the eight payloads were absent from VirusTotal and URLScan returned no malicious verdict for any, including a Lnkr-family payload indexed unclassified for roughly 2.5 years. Detection relies on a graph neural network over JavaScript syntax trees, an LLM second opinion on Workers AI, and a frontier-model ensemble voting across benign, magecart, other malware, and cryptomining labels.

Cloudflare Blog · 10h agoMalware in the wild