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Detectionmediumtest

Suspicious History File Operations

Detects commandline operations on shell history files

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Launch
Mikhail Larin, oscd.communityCreated Sat Oct 17Updated Sat Nov 27508a9374-ad52-4789-b568-fc358def2c65macos
Log Source
macOSProcess Creation
ProductmacOS← raw: macos
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic1 selector
detection:
    selection:
        CommandLine|contains:
            - '.bash_history'
            - '.zsh_history'
            - '.zhistory'
            - '.history'
            - '.sh_history'
            - 'fish_history'
    condition: selection
False Positives

Legitimate administrative activity

Legitimate software, cleaning hist file

References
1
Resolving title…
github.com
MITRE ATT&CK
Rule Metadata
Rule ID
508a9374-ad52-4789-b568-fc358def2c65
Status
test
Level
medium
Type
Detection
Created
Sat Oct 17
Modified
Sat Nov 27
Author
Mikhail Larin, oscd.community
Path
rules/macos/process_creation/proc_creation_macos_susp_histfile_operations.yml
Raw Tags
attack.credential-accessattack.t1552.003
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