Common attachment type filter is enabled
ORCA.205MediumDefenderAnti-malware
Part of ORCA · Defender · Anti-malware · All checks
Invoke-Maester -TestId ORCA.205Overview
Section titled “Overview”The common attachment type filter can block file types that commonly contain malware, including in internal emails.
Remediation action
Section titled “Remediation action”Enable common attachment type filter.
Related Links
Section titled “Related Links”- Configure anti-malware policies
- Microsoft 365 Defender Portal - Anti-malware
- Recommended settings for EOP and Microsoft Defender for Office 365
Details
Section titled “Details”Every attribute of this check
| Field | Value |
|---|---|
| Test ID | ORCA.205 |
| Severity | Medium |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Anti-malware |
| Area | Email and collaboration protection |
| Resource type | Policy |
| User impact | Low |
| Implementation cost | Low |
| MITRE ATT&CK | T1566.001 Spearphishing Attachment, T1204.002 Malicious File |
| Supports controls | nist-800-53-r5:SI-3 |
| PowerShell test | Test-ORCA205 |
| Services | ExchangeOnline |
Source
Section titled “Source”- Test:
tests/orca/Test.ORCA.205.ps1 - Documentation:
tests/orca/Test.ORCA.205.md