The DeepLoad campaign targets Windows endpoints through ClickFix social engineering, deploying a fileless loader via APC injection into LockAppHost.exe and establishing persistence through WMI event subscriptions that autonomously reinfect the host approximately 72 hours after remediation without attacker interaction, making false containment a significant operational risk. The primary payload harvests credentials stored in Chrome and Firefox; secondary capability spreads via USB. No CVE is assigned as this campaign exploits user behavior and platform features rather than a patched vulnerability; mitigation requires enforcing PowerShell Constrained Language Mode or AppLocker/WDAC policy, auditing and removing unauthorized WMI subscriptions, blocking mshta.exe execution, and treating all browser-stored credentials on affected hosts as compromised.