Suspicious Masqueraded Zemana Driver Written to Disk via updatedrv (via file_event)

ATT&CK techniques

Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1068Exploitation for Privilege Escalation
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the vulnerable Zemana driver being written to disk under the masqueraded name updatedrv.sys, a staging step used by the Terminator tool before creating a service and loading the driver to disable endpoint protection. The file is typically dropped into the system drivers directory or a ProgramData usoshared path.

Reporting behind it

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Suspicious Masqueraded Zemana Driver Written to Disk via updatedrv (via file_event)

Pivot detection · T1685 · 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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