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PamStealer is a new type of of macOS malware

Feeds.4Sysops •IT News • July 3, 2026

A new macOS infostealer named PamStealer is targeting users by masquerading as the legitimate open-source clipboard manager Maccy. The infection begins when a victim downloads a malicious disk image from a fraudulent website designed to mimic the official project page. This initial stage utilizes a clever AppleScript wrapper that executes hidden JavaScript for Automation to retrieve the final payload. Source

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

PamStealer: New macOS Infostealer Targets Users via Fake Maccy Manager PamStealer is a newly identified macOS infostealer that masquerades as the legitimate Maccy clipboard manager. The malware employs a two-stage attack method, starting with a malicious AppleScript that downloads a Rust-based payload. It verifies Mac login passwords using Apple's Pluggable Authentication Modules (PAM) before stealing sensitive data, enhancing the effectiveness of stolen credentials. The attack vector involves a fraudulent website mimicking the official Maccy page, leading to the download of a malicious disk image. Once executed, PamStealer collects browser cookies, saved credentials, clipboard contents, and more, while also establishing persistence on the infected system. The malware's design incorporates social engineering tactics to convince users to enter their passwords. Jamf Threat Labs has documented this campaign, emphasizing its unique features compared to typical macOS infostealers. 60 sources 68

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PamStealer is a new type of of macOS malware

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Extracted Entities

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