Suspicious Screen Capture via PowerShell Graphics API (via process_creation)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-21
Updated
2026-08-28

ATT&CK techniques

Collection
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects PowerShell invoking the CopyFromScreen graphics method to grab the desktop, a screen-capture collection technique used to spy on a victim's session. Screen capture is tracked in the Red Canary Threat Detection Report. Detecting the graphics-API call surfaces surveillance of the user's screen.

Related detections9 linkedT1113 — drag to rearrange
Suspicious RDP Shadow Session Started - Native (via rdp)
Malicious RDP Shadow Session Configuration Enabled - Registry (via registry_event)
Suspicious GoGRPC Screen Capture Log File Creation (via file_event)
Malicious RDP Shadow Session Started - Command (via process_creation)
Windows Registry: EnablePeriodicBackup value set for periodic system hive backups
Windows Recall Enabled by Deleting DisableAIDataAnalysis Registry Value
Windows Recall Enabled by Registry: DisableAIDataAnalysis Set to 0 (Windows)
Windows Recall Enabled via reg.exe Registry Changes (Windows)
Windows PowerShell Screen Capture via CopyFromScreen
Suspicious Screen Capture via PowerShell Graphics API (via process_creation)
Pivot detection · T1113 · 9 related

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