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AmnesiaStealer Gives Attackers Live Control of Victims’ macOS Browsers
Jamf Threat Labs analyzed AmnesiaStealer, a Rust-based macOS infostealer spread via fake GitHub pages that also grants live hidden browser control.
AmnesiaStealer is a three-stage Rust infostealer distributed through counterfeit GitHub download pages using the ClickFix technique, a lure shared with Atomic Stealer and MacSync campaigns. It harvests the keychain, 16 Chromium browsers, Apple Notes, Telegram and documents, reusing a password captured via a fake installer dialog. A third-stage stream module clones the victim's browser profile headlessly and lets operators drive the session via Chrome DevTools Protocol, while persistence uses a LaunchDaemon impersonating Apple's com.apple.ReportCrash.agent. On macOS 26 it may replace Chrome's Safe Storage key, a useful detection signal.
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GTIG AI Threat Tracker: From Prompting to Autonomy – The Evolution of Adversarial AI
GTIG's Q2 2026 tracker shows adversaries adopting agentic AI workflows, including credential harvesting in under six hours and supply chain attacks by UNC6780.
Google Threat Intelligence Group's Q2 2026 report documents adversaries moving from basic prompting to agentic AI workflows and automation, including a cloud compromise followed by agent-enabled mass credential harvesting executed in under six hours. It tracks financially motivated actor UNC6780 (TeamPCP) conducting large-scale open source supply chain compromises across PyPI, npm, and Docker Hub since March 2026, deploying credential stealers. The report also highlights growing targeting of proprietary AI models, source code, prompts, and API credentials, plus LLMJacking practices where adversaries steal developer credentials or hijack cloud infrastructure to run unauthorized AI workloads.
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Fake Claude Opus 5 app delivers malware and wipes its own tracks
A fake 'Claude Opus 5' GitHub repository impersonating Anthropic distributes RevStealer, a Windows infostealer stealing passwords, crypto wallets and VPN credentials.
Morphisec identified a malicious GitHub repository, Claude-Opus-5-Free-Desktop, impersonating Anthropic to distribute a roughly 101 MB download that launches RevStealer, a Windows information-stealing malware. The malware targets browser credentials, Windows Credential Manager, a dozen password managers, more than fifty cryptocurrency wallets, VPN, messaging, game launcher and streaming accounts, streaming stolen data to its server before deleting itself. It evades analysis with ten sandbox and VM checks, indirect system calls, Windows Defender exclusions, a fake verification window, and a Polygon blockchain smart contract fallback for C2. Only 1 of 66 antivirus engines flagged the sample at check time.
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Fake Minecraft Sites Are Still Spreading WeedHack After C2 Takedown
McAfee says WeedHack infostealer MaaS still spreads via ten fake Minecraft client sites and SEO poisoning despite C2 takedown, with 116,464 infections logged.
McAfee Labs' follow-up on the WeedHack Malware-as-a-Service operation, first documented in June 2026, found ten active fake Minecraft client sites and multiple file-hosting accounts still distributing the infostealer even after its C2 server went dark; over 6,300 user attempts were blocked in the past month. The campaign, running since January with 116,464 infected systems and 2,000-3,000 daily new victims, offered a free Discord-gated tier and a $5/month premium tier with webcam surveillance, and stole session cookies, passwords, browser data, and cryptocurrency wallets. Distribution relies on SEO poisoning that ranked fake sites such as nova-client.com above genuine GitHub repositories, with most malicious links coming via Discord (49.6%) and MediaFire (23.4%), and one fake site built with the AI website builder lovable.app.
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16 Typosquatted RubyGems Packages Steal Browser Credentials and Crypto Wallets
Typosquatted RubyGems packages deliver the StubMaker infostealer, stealing browser credentials, crypto wallets, and Telegram data from Windows developers.
OpenSourceMalware discovered a typosquatting campaign on August 15, 2026, tracked as StubMaker, publishing 16 malicious RubyGems packages (e.g., ubnuler, brumdler, brundlef) that imitate popular Ruby dependencies. The gems use the extconf.rb install hook to fetch a 22 MB Rust-based loader from GitHub, which launches a Go-based stealer ("wincfg") containing a DLL that bypasses Chromium's app-bound encryption to extract browser credentials, payment cards, crypto wallets and seed phrases, and Telegram Desktop data. Stolen data is uploaded as a password-protected ZIP to Gofile, with the download link sent over plain HTTP. The same actor also deployed 37 typosquatted npm packages delivering the identical loader and infostealer, and abused RubyGems' namespace reuse to republish malicious versions of yanked gems.
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50,000 Stripe Secrets Leaked in Public Code
Over 50,000 Stripe merchant API keys leaked via public code and logs; 659 merchant accounts' data offered on trading forum.
Ransomnews researchers identified over 50,000 unique Stripe merchant API keys exposed in public GitHub repositories, GitHub Actions logs, and misconfigured web servers. A dataset on a data-trading forum dated August 18, 2026 contained live keys for 659 merchant accounts plus roughly 35 GB of customer and payment data. Researchers demonstrated a leaked key enabled accessing customer lists, creating fraudulent payment links, and making test charges within 17 hours. Stripe itself was not compromised; over 3,000 misconfigured web servers revealed Stripe-related strings, with about 12% containing working keys.
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