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A fraudulent multichain cryptocurrency-wallet website is distributing a third known variant of the macOS information stealer PamStealer through the Wavel.dmg disk image. The campaign uses social engineering to persuade victims to run a disguised compiled script, which contacts attacker-controlled infrastructure for material needed to decrypt and install the next-stage Swift-based payload. Jamf Threat Labs identified the activity; no victim count or financial-loss estimate was reported.
PamStealer captures and validates macOS login passwords, extracts Keychain data, targets credential stores from 17 browsers, and collects system and user information including shell history and account photos. It packages the stolen data for upload to attacker infrastructure and maintains access by masquerading as Finder.app, creating a LaunchAgent, modifying shell profiles, using Git hooks and backups, and employing repair routines linked to shell sessions and Git activity while suppressing background-item notifications.
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Jamf Threat Labs identified a third known PamStealer variant distributed to macOS users through the fake multichain-wallet site wavel[.]app and its Wavel.dmg download. The social-engineering campaign installs a Swift-based stealer masquerading as Finder.app, which captures macOS passwords, harvests Keychain and browser credentials, establishes persistence, and uploads collected data to attacker-controlled infrastructure.
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Researchers have identified **PamStealer**, a previously unseen macOS malware family distributed through fake websites impersonating the legitimate **Maccy** clipboard manager. The infection begins with a trojanized disk image and a compiled AppleScript lure that tells users to press Command-R in Script Editor, a step that executes malicious code while sidestepping macOS `com.apple.quarantine` protections. The malware then deploys a Rust-based second stage that downloads additional payloads, steals browser data, clipboard contents, iCloud Keychain information, and login credentials, and sends the data to attacker-controlled infrastructure over encrypted command-and-control channels. PamStealer stands out for validating stolen passwords locally through macOS **Pluggable Authentication Modules (PAM)**, repeatedly prompting victims until the correct password is entered before exfiltration. Researchers said the malware is environment-aware, targets Apple Silicon systems, avoids analysis environments, and excludes devices tied to several Eastern European locales and time zones. It also delays Full Disk Access prompts, establishes persistence, and hides app bundles by impersonating Finder or Software Update components, while displaying decoy error messages to make victims think the fake application simply failed to launch.
Jul 3, 2026
A newly identified macOS infostealer dubbed **CrashStealer** is being used in active attacks by masquerading as Apple’s crash-reporting utility and abusing a valid Apple Developer ID with notarization to bypass Gatekeeper on first launch. Distributed in a disk image labeled **"Werkbit Setup"**, the malware presents a fake macOS authorization prompt to capture the user’s system password, then steals browser credentials, Keychain data, password manager information, cryptocurrency wallet and extension data, and files from the **Documents** and **Downloads** directories. Researchers said the C++ malware uses a loader to fetch a Base64-obfuscated shell script from GitHub infrastructure, which then downloads the main payload disguised as **`CrashReporter.app`** with the bundle identifier **`com.apple.crashreporter`**. CrashStealer encrypts stolen data with **AES-256-GCM**, packages it into ZIP archives, and exfiltrates it to an attacker-controlled server via **libcurl**; it also establishes persistence by copying and ad hoc re-signing itself before installing a LaunchAgent named **`com.apple.crashreporter.helper`**. Analysts also noted anti-debugging and control-flow obfuscation features designed to complicate detection and reverse engineering.
Jul 30, 2026
Researchers reported a new Go-based macOS stealer and backdoor, **notnullOSX**, being used in highly targeted campaigns against users believed to hold more than **$10,000 in cryptocurrency**. The malware has been linked to the developer previously known as **0xFFF**, later **alh1mik**, and was first detected in Vietnam, Taiwan, and Spain. Operators are distributing it through social-engineering lures including fake protected Google Docs, **ClickFix** terminal-prompt tricks, malicious DMG files, and counterfeit WallSpace wallpaper sites promoted through a likely hijacked YouTube channel. Once victims are persuaded to grant **Full Disk Access**, notnullOSX can steal browser credentials, Safari cookies, iMessage data, Apple Notes, Telegram sessions, crypto wallet files, and developer secrets. Researchers said the malware uses a modular architecture, downloads components from `cdn.filestackcontent.com`, and maintains persistent command-and-control through **Firebase Realtime Database** using SSE, HTTP POST, heartbeat traffic, and WebSocket-style connectivity. One module, **ReplaceApp**, appears designed to swap legitimate wallet tools such as **Ledger Live** or **Trezor** with trojanized versions to capture seed phrases, giving the operation capabilities closer to a remote access trojan than a conventional smash-and-grab stealer.
Jun 29, 2026