CrashStealer macOS Malware Uses Notarized Dropper to Pass Gatekeeper Checks
Cybersecurity researchers have flagged a new macOS information stealer called CrashStealer that's capable of harvesting sensitive data from compromised systems. Unlike other information stealers that are built on AppleScript droppers or Objective-C-based wrappers, CrashStealer is implemented in native C++, according to Jamf Threat Labs. "It validates the victim's login password locally before harvesting, collects broadly across browsers, cryptocurrency wallets, password managers, and the keychain, encrypts what it collects with AES-GCM before exfiltrating over libcurl, and persists by copying and re-signing itself," security researcher Thijs Xhaflaire said in a report shared with The Hacker News. CrashStealer is said to be distributed by means of a signed and Apple-notarized dropper that's distributed as a disk image file named "Werkbit.app." Because both the disk image and binary are notarized and carry a valid developer ID ("Emil Grigorov...
Jul 13, 2026