Suspicious Command Execution from NTFS Alternate Data Stream via cmd Redirection (via process_creation)

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1059.003Windows Command Shell
Persistence
Priv Esc
Defense Evasion
- T1564.004NTFS File Attributes
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects cmd.exe reading and executing content from an NTFS alternate data stream attached to a decoy PDF using input redirection. TA397 delivered LNK files that ran a hidden PowerShell stage stored in a PDF ADS such as ~tmp.pdf.

Reporting behind it

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Suspicious Command Execution from NTFS Alternate Data Stream via cmd Redirection (via process_creation)

Pivot detection · T1059.003 · 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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