A sophisticated passive backdoor named cwpdoor has been discovered targeting Control Web Panel (CWP), a free open-source server management control panel for Linux. The malware embeds malicious code directly into the legitimate cwpsrv binary and is triggered only by specially crafted HTTP requests containing cryptographic signatures. It executes commands remotely while suppressing access logs, leaving no forensic traces. With over 340,000 CWP instances exposed to the internet, the threat surface is substantial. First observed in June 2026 with deployment infrastructure at 136.0.141.71, the backdoor achieved zero detection rates across security vendors. A real-world victim was identified in Brazil in September 2026. The backdoor uses RSA signature verification and AES-256-CBC encryption for command and control communications through Unix domain sockets, making detection extremely difficult through conventional means.
A large-scale supply chain compromise affected MECOOL Android set-top boxes manufactured by Videostrong Technology Co., Ltd. Over 1.3 million devices were pre-infected with the x.cpe backdoor, enabling system-level access via MQTT infrastructure. The backdoor deploys multiple payloads including residential proxy SDKs and various ad fraud modules. Approximately 500,000 infected devices remain active, primarily in Malaysia, Mexico, and Brazil. The operation supports a pay-per-install campaign that fuels ad fraud and proxy ecosystems. Google has permanently banned Videostrong from the Android ecosystem due to this compromise.
A Brazilian Magecart group exploited a critical vulnerability (CVE-2026-8467) in Plausible Community Edition versions 3.0.0 through 3.2.0 to inject a card skimmer into the Plausible analytics script used by the Brazilian ecommerce platform Convertr. From October 24 to October 27, 2026, the malicious script stole payment card details, CVV, expiry dates, cardholder names, and CPF taxpayer numbers from shoppers during checkout. The stolen data was exfiltrated to the domain 1x0.is. Convertr removed the skimmer and patched the vulnerability on October 27. This Magecart group has targeted multiple Brazilian ecommerce platforms since 2024 using distinctive data exfiltration techniques.
Three VBScript-based malware campaigns target victims primarily in Brazil and Portugal via phishing emails using fake legal and financial documents. These campaigns deliver Overlord RAT, Lampion trojan, and an unknown RAT through multi-stage execution chains involving obfuscated VBScript, batch files, and DLL side-loading with legitimate Windows components. The malware establishes persistence via scheduled tasks and registry modifications, evades detection by adding exclusions to Windows Defender and checking for virtual environments, and uses cloud services for payload delivery. Command and control infrastructure is based in Brazil.
Midnight Mimosa is a widespread Android malware campaign involving malicious applications preinstalled in the firmware of low-cost MediaTek-based devices. It affects over 150 countries, with highest concentrations in Mexico, France, and Italy. The malware leverages platform-signed system apps to silently deploy payloads, evade security protections, and execute remotely supplied code. It monetizes compromised devices through advertising fraud and residential-proxy services. The malicious firmware components provide persistent system-level access before device activation and bypass conventional Android security controls by temporarily disabling Google Play Store protections. Affected devices include low-cost Android handsets, counterfeit flagship models, and devices from Doogee and Cubot.
Between April and July 2026, AOMEI Backupper, a Windows backup and disk cloning software, was compromised multiple times in short-lived supply chain attack windows. During these brief periods, users received a downloader for the ShinyRoad modular backdoor framework. The attacker, tracked as UNC7017, tampered with update server configurations to redirect users to malicious payloads, including the CrossRoad dropper, a modified Radmin Server with a malicious DLL, and the Adaptix C2 framework. The campaign used ephemeral tampering windows lasting only five to ten minutes, reverting quickly to authentic versions, which complicated detection. The attack affected a broad range of users opportunistically, with some higher education, IT services, and telecommunications organizations in multiple countries identified as compromised. AOMEI initially dismissed reports of tampering but later took corrective actions after repeated notifications.
A sophisticated malware campaign named Midnight Mimosa targets low-cost Android devices using MediaTek platforms by preinstalling malicious code in device firmware before user acquisition. The malware operates as a platform-signed system application with elevated privileges, allowing silent installation of apps, permission grants, and remote code execution. It primarily facilitates ad fraud, click fraud, device data collection, and converts infected devices into residential-proxy botnet nodes. The malicious app disguises itself under system-like names and disables Google Play Store during payload deployment to evade detection. Several related malicious apps were also found on Google Play, linked to the same command-and-control infrastructure.
BraZetsu is a Python-based Windows malware framework used by the Brazilian threat actor Exilware. It functions as a toolkit for Initial Access Brokers, converting compromised systems into assets for sale in underground markets. The malware targets corporate, financial, industrial, and law enforcement sectors primarily in Iberia and Latin America. It harvests financial transaction files in the Brazilian CNAB format, browsing histories, and digital certificates. BraZetsu supports the 'Infected Marketplace' where initial access is sold to criminal clients for further exploitation. Since early 2026, it has rapidly evolved to include AI-enhanced reconnaissance and advanced evasion techniques. There is no indication of known exploits in the wild or available patches.
Operation Master is a sophisticated cybercrime campaign exploiting a GlobalProtect authentication bypass vulnerability (CVE-2026-0257) to compromise enterprise networks across multiple countries. The attackers conducted extensive network scanning to identify high-value targets, executed SQL injection attacks with privilege escalation to steal databases, and exfiltrated Active Directory credentials. They monetized stolen data by selling it on underground forums and operating a multi-tenant automated invoice fraud platform that sent millions of phishing messages and fraudulent links. The operation employed advanced phishing techniques including M365 OAuth device-code phishing and voice-based credential harvesting, with payments collected via PIX through serverless proxies.
A suspected Chinese-speaking threat actor linked to Red Heron conducted extensive exploitation campaigns from May to September 2026. The attacker exploited multiple vulnerabilities in WordPress (CVE-2026-63030, CVE-2026-60137) to breach a western government organization, stealing over 18,000 sensitive records including credentials and personally identifiable information. Additionally, the actor exploited CVE-2026-7273 in ZyXEL GS1900 switches, compromising 996 devices across 48 countries and exfiltrating configurations and credentials. The adversary demonstrated sophisticated capabilities such as custom tool development possibly using large language models, privilege escalation, and systematic data exfiltration via PowerShell-based techniques.
The KREMLIN toolkit is a Brazilian banking malware operation active since May 2025, targeting Brazilian financial institutions via malicious Chrome browser extensions. It manipulates Chromium's integrity checks by forging Secure Preferences and HMACs to evade detection. The malware intercepts credentials, session tokens, and sensitive banking data through keylogging and request interception. The operation uses Ethereum smart contracts for dynamic command and control configuration and has evolved through multiple campaigns delivering different remote access trojans. Over 1,500 infections have been temporarily disrupted, with the vast majority of victims located in Brazil.
Trezor warned customers that threat actors who breached its third-party email provider are conducting phishing attacks targeting its users. The phishing emails impersonate Trezor and claim a critical hardware vulnerability, attempting to trick recipients into clicking malicious links. Trezor has taken down the fraudulent domain and is investigating the breach. This incident follows a prior data breach involving Trezor's shipping provider ShipMonk, which exposed customer order data affecting tens of thousands of users across multiple countries. The phishing attack leverages compromised email infrastructure rather than a direct vulnerability in Trezor products.
Gigabud is an Android remote access banking trojan active since 2022, attributed to GoldFactory group, targeting victims across Southeast Asia, South Asia, Middle East, Africa and Latin America. The malware now utilizes Vwork, a weaponized fork of the open-source app cloning application Shelter, to evade detection by creating isolated work profiles. After initial Gigabud infection, Vwork is installed to clone banking applications into the work profile, hiding malicious activity from signature-based detection in application security SDKs. Between February and July 2026, approximately 1,469 compromised devices and 1,281 potentially compromised logins were observed in Indonesia alone, with estimated losses of roughly $960,939. The infection chain involves social engineering through phishing sites delivering fake apps disguised as legitimate services, followed by credential theft through overlays and remote-controlled fraudulent transactions executed within cloned banking apps.
An investigation revealed a sophisticated cryptocurrency and credential-stealing operation using Amatera stealer as the primary payload. The attack chain leverages Cloudflare Workers to inject JavaScript stored on BNB Smart Chain, presenting fake Google CAPTCHA prompts that lead to WebDAV-based DLL execution. Two parallel infection chains were identified, one loading through a DLL named 'pf.ch' and another through 'verification.google', both delivering Amatera stealer with different secondary payloads. The 'pf.ch' variant deployed ZigCryptoStealer via NativeAOT loader and a Go-based reverse proxy, while the 'verification.google' variant installed NetSupport Manager with C2 infrastructure in Russia. The operation affects numerous countries with primary focus on stealing cryptocurrency wallets, credentials from password managers, and various authentication data through extensive collection rules targeting over 400 applications.
Two multi-stage network intrusion campaigns are actively targeting organizations in Latin America, specifically in Mexico, Ecuador, and Brazil. The Mexican campaign targets transportation and government entities using living-off-the-land techniques and self-hosted NextChat instances. The Brazilian campaign targets financial organizations with custom remote access trojans (RATs) and tunneling tools, including a Go-based SOCKS5 proxy. Both campaigns leverage AI tools such as Claude and GPT-4.1 to generate scripts and troubleshoot operations. Operational security failures by attackers, including exposed staging directories and unsecured interfaces, have allowed defenders visibility into their activities. Indicators include multiple duckdns.org domains, an IP address, and various file hashes. There are no known exploits in the wild or confirmed active threat actors at this time.
A Chinese-speaking cybercrime group known as Gambling Goblin has targeted Brazilian government and educational websites since mid-2025 by compromising web servers and installing malicious Apache modules. These modules reverse-proxy visitors to phishing pages impersonating trusted app stores but actually promote online gambling and sports betting. The attackers manipulate search engine rankings by chaining compromised high-reputation domains, mainly Brazilian government sites. The operation uses a heavily obfuscated Linux toolkit with custom downloaders, backdoors, credential stealers, and reconnaissance tools. The campaign also targets victims in Vietnam, Spain, and English-speaking regions.
Since mid-2025, a Chinese-speaking cybercrime group dubbed Gambling Goblin has conducted a sustained campaign targeting Brazilian organizations, mainly government and educational institutions. The attackers compromise web servers and install malicious Apache modules that stealthily reverse-proxy visitors to phishing pages impersonating trusted app stores. These phishing pages promote online gambling and sports betting while leveraging hijacked high-reputation domains to manipulate search engine rankings and hijack traffic. The group uses a heavily obfuscated Linux toolkit including downloaders, backdoors, credential stealers, and brute-forcers. The infrastructure is scalable and extends beyond Brazil, with parallel phishing networks targeting Vietnamese, Spanish, and English-speaking victims. The phishing infrastructure could be reconfigured to deliver malware directly, posing a latent escalation risk.
Beginning in 2024, a financially motivated threat actor designated BREEZE COMET has conducted sophisticated operations targeting Brazilian financial services, retail, and eCommerce organizations. The group specializes in manipulating payment systems including Pix, STR, and Boleto to conduct fraudulent transfers worth tens of thousands of USD. Their evolved tactics leverage customized malware suites written in multiple languages including Rust, Nim, Golang, and Java, alongside compromised government websites for initial access and command and control. The threat actor demonstrates advanced capabilities by targeting banking software, payment APIs, and mTLS credentials while maintaining persistent access through multiple backdoors. Evidence indicates BREEZE COMET uses generative AI to accelerate malware development and script creation, suggesting potential expansion to other Latin American and African countries based on infrastructure replication observed in Nigeria, Paraguay, Ghana, and Venezuela.
BraZetsu is a sophisticated Python-based Windows malware framework attributed to the Brazilian threat actor Exilware, functioning as a comprehensive toolkit for Initial Access Brokers. Unlike standard infostealers, BraZetsu transforms compromised systems into commercial assets through deep reconnaissance capabilities targeting Iberian and Latin American corporate, financial, industrial, and law enforcement environments. The framework scans for standardized financial remittance files in Brazilian CNAB format, extracts detailed browser histories, and employs AI-enhanced data triage for target prioritization. Operating through a modular architecture with stealth techniques, BraZetsu powers the Infected Marketplace where Exilware commercializes initial access to compromised hosts. The platform allows criminal customers to remotely execute secondary malicious payloads on purchased access, creating a persistent threat-multiplier effect. Tracked since February 2026, BraZetsu demonstrates rapid technical progressi...
AnonyMousKIT is an AI-powered Phishing-as-a-Service platform engineered to disable Apple's Activation Lock on stolen devices. Operating as a credit-metered system, it automates credential harvesting through email, SMS, WhatsApp, and AI-driven voice phishing calls. The investigation exposed a reseller supply chain spanning 506 domains and 168 storefront brands active since early 2024. The platform targets owners of stolen Apple devices using device-specific lures with internal model identifiers and real-time Find My statuses. Conversational AI agents impersonating Apple Support conduct vishing operations, with over 200 calls placed primarily to Brazil at minimal cost. Coding vulnerabilities exposed 120,242 lines of operational logs, revealing 689 distinct WhatsApp operator accounts and detailed attack infrastructure. The ecosystem operates through a decentralized enterprise structure with developers, resellers, and hundreds of subscriber-operators monetizing stolen iPhone hardware through industrialized soc...
