Sigma rule: Suspicious Tasklist Discovery Command

Rule

Title

Suspicious Tasklist Discovery Command

Status

test

Level

informational

Author

frack113

Date

2021-12-11

Modified

2022-12-25

File

rules-threat-hunting/windows/process_creation/proc_creation_win_tasklist_basic_execution.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network

Log source

product

windows

category

process_creation

Detection

selection:
    - CommandLine|contains: 'tasklist'
    - Image|endswith: '\tasklist.exe'
    - OriginalFileName: 'tasklist.exe'
condition: selection

False positives (as the rule lists them)

• Likely from users, administrator and different internal and third party applications.

Tags

• attack.discovery
• attack.t1057
• detection.threat-hunting

MITRE ATT&CK ids this rule names

• T1057

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1057/T1057.md#atomic-test-2---process-discovery---tasklist

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-threat-hunting/windows/process_creation/proc_creation_win_tasklist_basic_execution.yml