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Check Point Research detailed BundleBot, a stealer/bot malware family that uses the .NET single-file, self-contained bundle format and custom obfuscation to hinder static analysis and detection. The malware has been spread through Facebook Ads and compromised Facebook accounts that redirect users to phishing pages posing as utilities, AI tools, and games, then delivered through a multi-stage infection chain that includes a RAR downloader and a password-protected ZIP archive.
Once installed, BundleBot steals browser data, Facebook, Telegram, and Discord information, along with system details and screenshots, and maintains persistence through the Windows Run registry key. Researchers said the malware communicates with command-and-control servers over TCP, with some variants using HTTPS, and assessed that multiple campaigns were likely run by the same threat actor, with stolen Facebook credentials potentially fueling continued propagation through newly hijacked accounts.
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Check Point Research reported on a new stealer/bot malware family it dubbed BundleBot. The report described its use of .NET single-file bundles, Facebook-based distribution, and data theft capabilities.
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Threat actors used fake Facebook job advertisements and impersonation content, including lures themed around Amazon CEO Andy Jassy and DocuSign, to distribute the Windows information stealer **Ov3r_Stealer**. Trustwave SpiderLabs found victims were redirected to Discord-hosted `.url` shortcut files and, in some cases, weaponized PDFs, which triggered a multi-stage infection chain involving `control.exe`, malicious `.cpl` loaders, PowerShell scripts fetched from GitHub, and a final DLL sideloading payload delivered from a remote SMB share. Once installed, **Ov3r_Stealer** established persistence through scheduled tasks running every 90 minutes and harvested browser credentials, crypto wallets, FTP and Discord data, documents, and system information before exfiltrating the data to attacker-controlled Telegram bots and channels. Researchers said the malware was under active development, with alternate delivery methods including HTML smuggling, SVG smuggling, and LNK masquerading, and noted strong similarities to the open-source **Phemedrone Stealer**; the activity was linked to aliases including **Liu Kong**, **John Macollan**, **MR Meta**, and **MeoBlackA**, with indications the operator may be offering the malware as a service.
Aug 14, 2026
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Aug 15, 2026
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Aug 15, 2026