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Windows Module Usage Enumeration via tasklist.exe -m rdpcorets.dll

Flags tasklist.exe module enumeration (-m) targeting rdpcorets.dll to identify the owning process.

FreeReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
Swachchhanda Shrawan Poudel (SigmaHQ), DRL 1.1
Published
2024-02-12
Updated
2026-07-30
AnalysisDetection

ATT&CK techniques

Cred Access

  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. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule detects when tasklist.exe is launched with module enumeration enabled (-m) and the command line references rdpcorets.dll. Attackers can use this to identify the specific process and PID that has a targeted DLL loaded, which can enable follow-on actions such as memory access or credential-related activity. The detection relies on Windows process creation telemetry, matching tasklist.exe execution and its command-line parameters.

Reporting behind it

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Windows Module Usage Enumeration via tasklist.exe -m rdpcorets.dll
Pivot detection · T1003 · 9 related

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