Malicious BADIIS Driver Dropped to System32 Drivers Directory (via file_event)

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.003Windows Service
Priv Esc
- T1543.003Windows Service
Defense Evasion
- T1027Obfuscated Files or Information
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the BADIIS malicious kernel driver payloads being written into the System32 drivers directory under masquerading filenames. Observed in Elastic Security Labs analysis of the global SEO poisoning campaign where WUDFPfprot.sys, WppRecorderpo.sys, and WppRecorderrt.sys are dropped to establish a stealthy foothold.

Reporting behind it

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Malicious BADIIS Driver Dropped to System32 Drivers Directory (via file_event)

Pivot detection · T1027 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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