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Indexed Rules
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CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Sysmon Discovery Via Default Driver Altitude Using Findstr.EXE
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Sysmon Discovery Via Default Driver Altitude Using Findstr.EXE
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Sysmon Discovery Via Default Driver Altitude Using Findstr.EXE
id: 37db85d1-b089-490a-a59a-c7b6f984f480
status: test
description: Detects usage of "findstr" with the argument "385201". Which could indicate potential discovery of an installed Sysinternals Sysmon service using the default driver altitude (even if the name is changed).
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1518.001/T1518.001.md#atomic-test-5---security-software-discovery---sysmon-service
author: frack113
date: 2021-12-16
modified: 2023-11-14
tags:
- attack.discovery
- attack.t1518.001
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith:
- '\find.exe'
- '\findstr.exe'
- OriginalFileName:
- 'FIND.EXE'
- 'FINDSTR.EXE'
selection_cli:
CommandLine|contains: ' 385201' # Sysmon driver default altitude
condition: all of selection_*
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_findstr_sysmon_discovery_via_default_altitude.yml