New ZLoader Malware Variant Surfaces with 64-bit Windows Compatibility

**ZLoader returns:** Threat hunters have observed a new campaign delivering updated ZLoader 64-bit variants (2.1.6.0/2.1.7.0) that add RSA encryption in the loader, an updated domain generation algorithm as a fallback, RC4-protected static configuration, filename checks to evade sandboxes, and other obfuscation measures; distribution is via phishing, malicious search ads and MSIX installers, and the loader is expected to facilitate ransomware and information-stealing follow-on payloads.