Suspicious Office VBA Security Downgrade via Registry (via registry_set)

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1112Modify Registry
Priv Esc
Defense Evasion
- T1112Modify Registry
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects registry changes that enable programmatic access to the VBA object model and disable macro warnings which the OfflRouter virus sets to spread through Office documents without prompting. Weakening Office macro protections is a precursor to self-propagating macro malware and unattended code execution.

Reporting behind it

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Suspicious Office VBA Security Downgrade via Registry (via registry_set)

Pivot detection · T1112 · 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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