The BOSSAI campaign involves a single operator using a mesh of 12 AI agents to conduct persistent attacks across 11 countries. The attacker leveraged both abliterated and commercial AI models in specialized roles such as infrastructure building, vulnerability scanning, and exploitation. Primary targets included emergency services, universities, financial institutions, and government systems in Taiwan, Thailand, and Mexico. Confirmed breaches include exfiltration of medical records from Taipei emergency services, student data from Thai universities, and over 200,000 Mexican residential phone records. Despite attempts to jailbreak commercial AI models, the attacker relied on less effective abliterated models. The investigation uncovered the full operational infrastructure, including command histories and victim data, highlighting both the capabilities and limitations of AI-augmented autonomous exploitation.
A Korean-speaking threat actor linked with moderate confidence to North Korea's Lazarus Group is conducting a global campaign exploiting two critical PHP vulnerabilities (CVE-2026-109618 and CVE-2026-109619) that allow unauthenticated remote code execution. The campaign targets government agencies, financial institutions, manufacturing, logistics, aviation, and trading platforms across multiple countries including the US, Japan, and EU. Exploitation attempts have been observed since 17 October 2026, involving web shell deployment and session poisoning. The vulnerabilities affect all internet-facing PHP installations below versions 8.5.12, 8.4.27, 8.3.36, or 8.2.35, with Apache mod_php being at highest risk.
Two critical remote code execution vulnerabilities in PHP, collectively named PHP2Shell, were disclosed on October 21, 2026. CVE-2026-109618 involves out-of-memory handling corruption that can interrupt PHP while internal request data is partially initialized, leading to invalid data treatment. CVE-2026-109619 exploits stale global state where request-owned internal state survives after memory is freed. Both vulnerabilities can be exploited successfully on ARM64 systems and x86 systems without ASLR. Fixed versions include PHP 8.5.12, 8.4.27, 8.3.36, and 8.2.35. Over 2.6 million internet-facing hosts running PHP were identified as vulnerable, with 42% on end-of-life branches receiving no official patches. Early exploitation attempts were observed from multiple sources, including scanning activity and webshell deployment attempts targeting the upload-progress vulnerability path.
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.
Between April and July 2026, attackers compromised AOMEI's update servers to distribute malware via brief modifications to configuration files used by AOMEI Backupper's built-in promotional and notification features. The attackers altered two configuration files to redirect software updates to malicious payloads, delivering a downloader named CROSSROAD and a backdoor called SHINYROAD. These changes were short-lived, lasting only minutes, making detection difficult. The malware established persistence and enabled remote control of infected systems. Additionally, a technique to steal Windows authentication hashes was observed during one attack window. Affected organizations spanned multiple countries and sectors. AOMEI has since upgraded its servers, patched vulnerabilities, and taken corrective actions, though details on the initial breach vector remain undisclosed.
Ledger has requested that resellers and distributors in several Asian countries suspend sales and remove their wallets from shelves due to an ongoing investigation into device tampering linked to a supply-chain attack.
BambooToken is a multiplatform malware family active since at least February 2023 that uses the MQTT protocol for covert command and control. It targets Windows and Linux systems primarily across Asia and South America, infecting backend servers in various sectors including mobile apps, legal, financial, software, hotels, and GitLab instances. The malware employs sideloading via Tendyron's OnKey authentication software, common in Chinese banking and government networks. It has capabilities for host enumeration, antivirus detection, and potential keylogging and clipboard theft. The attacker uses MQTT's publish-subscribe model and Cloudflare proxies to conceal infrastructure and operations. The campaign demonstrates sophisticated operational security and widespread infections.
MacSync Stealer is a macOS information stealer and remote-access stager delivered through ClickFix social engineering and malvertising campaigns. Operating under a malware-as-a-service model, it employs sophisticated evasion techniques including process daemonization, single-byte XOR obfuscation, and in-memory AppleScript execution to bypass Apple Gatekeeper, XProtect, and EDR solutions. The malware exfiltrates credentials, browser data, cryptocurrency wallets, and SSH keys through fault-tolerant 10MB chunked uploads to command-and-control infrastructure. MacSync targets professionals in software engineering, cryptocurrency, fintech, and corporate environments across North America, Europe, and Asia-Pacific regions, with campaigns impersonating legitimate services like Google Meet, Claude AI, Docker, and TradingView to trick victims into executing malicious Terminal commands.
Mirage2FA is an active phishing-as-a-service toolkit built to steal Microsoft 365 credentials and authenticated sessions through Adversary-in-the-Middle attacks. Analysis shows 63.7% of identified victims are in the US, with Technology, Manufacturing, and Education among the most targeted industries. The operation generated thousands of compromise events between 2024 and 2026, including stolen session cookies, passwords, and SSO access. Once a Microsoft 365 session is hijacked, attackers gain access to corporate email, sensitive data, and trusted business accounts. The toolkit uses browser-based delivery through .htm, .xhtml, and .svg stagers, QR codes, JavaScript obfuscation, and WebSocket-based AiTM activity. Of 9,426 unique targeted email addresses, 4,532 were potentially compromised, representing approximately 48% success rate.
BlueShell is an open-source remote access trojan developed in Go language, primarily used by Chinese-based threat actors. A variant of BlueShell has been identified in post-intrusion activities by APT groups including BlackTech, targeting organizations in Japan, South Korea, and Thailand. This variant differs from the original through a dedicated dropper mechanism, proxy server-based C2 communication, and anti-forensic capabilities. The dropper deploys the variant to /tmp/kthread, disguises it as a Linux kernel worker process, and removes filesystem traces. Recent variants observed since 2024 include XOR-encoded configuration data and proxy functionality, indicating continuous development. The malware performs hostname verification, validates C2 certificates, and implements commands for file transfer, remote shell, and SOCKS5 proxy capabilities.
A misconfigured Python HTTP server on a Budapest VPS exposed the complete operational infrastructure of three distinct phishing operators. The investigation uncovered codemado, an Egyptian threat actor operating since 2018, running a full AiTM platform with custom tools including MaDoO Blaster; saroula01, deploying OAuth Device Code Flow attacks that accumulated 218 victims across 12 countries over a year; and mail-argenta, a Nigerian operator identified through infostealer logs containing his own credentials. All three actors leveraged customized Evilginx forks and AI-assisted development to build MFA-bypass infrastructure from public GitHub repositories. The campaigns targeted Microsoft 365 accounts primarily, with codemado maintaining ties to RockyBelling's "The Quarry" cybercrime ecosystem. The exposed server contained phishing configurations, credential logs, RMM installers, combolists, and Telegram session files, revealing sustained operations from at least January 2025 through May 2026.
Beginning in August 2025, a sophisticated intrusion was discovered where attackers used log poisoning techniques to deploy a web shell on vulnerable phpMyAdmin panels. The threat actors exploited misconfigured web applications to plant China Chopper web shells, controlled via AntSword, before deploying Nezha, an open-source monitoring tool, to facilitate remote command execution. This led to the deployment of Ghost RAT on compromised systems. Analysis revealed over 100 compromised machines, predominantly located in Taiwan, Japan, South Korea, and Hong Kong. The attackers demonstrated technical proficiency through multi-stage operations, utilizing AWS and VPS infrastructure, with indicators pointing to China-nexus threat actors. The campaign highlights increasing abuse of legitimate publicly available tools to achieve malicious objectives while maintaining plausible deniability.
An ongoing malware campaign is targeting WhatsApp users in multiple countries with deceptive messages that push VBScript files, leading to remote system access. [...]
An active malware campaign has been discovered distributing malicious VBScript files through WhatsApp direct messages since June 2026. The operation affects users across multiple countries, with Malaysia experiencing the highest concentration of victims. Attackers compromise WhatsApp accounts and send weaponized VBS files disguised as business and financial documents to contacts. The multi-stage infection chain ultimately deploys legitimate ManageEngine Endpoint Central RMM software, providing persistent remote access to compromised systems. The scripts employ heavy obfuscation, Chinese-language comments, and modify Windows UAC settings. Infrastructure overlaps with ValleyRAT and Gh0st RAT operations suggest possible Chinese-speaking operators, though attribution remains uncertain. The campaign primarily targets individual users through opportunistic rather than focused methods, exploiting social engineering techniques with localized filenames in multiple languages.
AryStinger is a malware family that hijacks over 4,300 outdated routers built on Realtek RTL819X chips, primarily D-Link DIR-850L devices, to create a stealthy reconnaissance and intrusion support network. It exploits old vulnerabilities disclosed in 2013 and 2016 to install a lightweight Linux binary that performs distributed scanning and information gathering without typical malicious activities like file encryption or cryptocurrency mining. A second, more capable Go-based build targets NAS devices via a 2025 code injection vulnerability. The malware communicates with its command and control infrastructure using obfuscated protocols and establishes persistence via Dropbear SSH. The infected routers act as Executors that perform parallel scanning tasks, enabling efficient network footprinting. The infection is concentrated mainly in South Korea and China but also affects other countries. The malware's low detection rate and use of legacy hardware with no firmware updates pose ongoing risks to privacy, enterprise security, and national infrastructure.
A previously undocumented malware botnet named AryStinger has compromised more than 4,000 outdated routers to turn them into proxies for malicious traffic. [...]
Cybercriminals orchestrated a sophisticated malvertising operation leveraging Google Ads to impersonate popular AI developer tools including Claude AI, ChatGPT Codex, Perplexity, Cursor IDE, and JetBrains. Over seven weeks spanning April to June 2026, attackers deployed 106 unique malicious hostnames across six distinct waves, initially hosting ClickFix social engineering pages on GitLab infrastructure before pivoting to weaponize claude.ai's legitimate shared chat feature. The campaign targeted technically proficient users searching for AI development tools, tricking them into executing terminal commands that deployed the MacSync infostealer. This credential-harvesting malware collected browser data, SSH keys, and cryptocurrency wallets. The Asia-Pacific region sustained the heaviest impact with 67.2% of over 2,000 victims, particularly concentrated in Taiwan. Anthropic responded by banning malicious accounts and implementing additional abuse mitigations.
Since late 2025, cybercriminals have been exploiting Wallpaper Engine, a popular live wallpaper application on Steam, to distribute malware through Steam Workshop. Attackers target primarily Chinese and Russian gamers by embedding malicious code within application wallpapers shared on the platform. These compromised wallpapers deliver various malware types including infostealers, backdoors, crypto miners, and ransomware. One analyzed sample dropped DarkKomet backdoor while hijacking Steam sessions to steal account credentials. The malware modifies system libraries to locate Steam installations and exfiltrate data to attacker-controlled servers. Compromised accounts are then used to upload additional malicious wallpapers. The diverse malware families suggest multiple independent hacking groups are exploiting this distribution method. Infected wallpapers received thousands of downloads before removal, with 89% of infections occurring in China.
TA4922 is a highly sophisticated Chinese-speaking threat actor demonstrating rapid operational tempo and continually evolving malware capabilities. Initially targeting East Asia, particularly Japan, the group has expanded globally to Europe and Africa. The actor deploys multiple malware families including Atlas RAT, RomulusLoader, SilentRunLoader, and ValleyRAT (Winos4.0), alongside legitimate remote management tools like AnyDesk and SyncFuture. Campaigns use localized lures themed around HR, payroll, tax, and invoicing, targeting hundreds to thousands of recipients per campaign. TA4922 conducts credential phishing, fraud operations including credit card theft, and attempts to shift communications to out-of-band channels like LINE, WhatsApp, and Microsoft Teams. The group leverages legitimate cloud hosting services and trusted software for delivery and persistence, combining advanced tradecraft with financially motivated objectives such as data theft, fraud, access resale, and persistent remote access.
Endpoint detection and response (EDR) tools are widely deployed and far more capable than traditional antivirus. As a result, attackers use EDR killers to disable or bypass them. The malicious “msimg32.dll” used in Qilin ransomware attacks, which is a multi-stage infection chain targeting EDR systems. It can terminate over 300 different EDR drivers from almost every vendor in the market.
