Hunting MacSync Stealer infrastructure through behavioral pivots
MacSync Stealer rapidly rotates domains to evade detection, but its behavior remains consistent.
ClickFix
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From open lures to cloaked gates: How a macOS ClickFix campaign learned to hide
A macOS ClickFix campaign shifted tactics from openly serving infostealer lures to hiding them behind a browser-fingerprinting gate. -
CaptiveCrunch: Midnight Blizzard targets travelers worldwide for malware delivery and credential theft
Storm-2945, a sub-cluster of the Russian threat actor Midnight Blizzard, has been observed compromising the sign-in portals of hospitality-related organizations such as hotels since May 2026 in order to deliver malware to travelers and steal credentials in an operation we call CaptiveCrunch. -
ACR Stealer: Two observed intrusion chains amid increased threat activity
From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer environments. Retain Microsoft Defender Experts
Microsoft Defender Experts are available to strengthen your teams with expertise when and where you need it. Learn how to elevate your security with expert-led services.
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ClickFix campaign uses fake macOS utilities lures to deliver infostealers
Threat actors are targeting macOS users with fake utility fixes that trick them into running malicious Terminal commands.
