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Detectionmediumtest

Suspicious PowerShell Download

Detects suspicious PowerShell download command

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Florian Roth (Nextron Systems)Created Sun Mar 05Updated Fri Oct 273236fcd0-b7e3-4433-b4f8-86ad61a9af2dwindows
Log Source
WindowsPowerShell Classic
ProductWindows← raw: windows
CategoryPowerShell Classic← raw: ps_classic_start
Detection Logic
Detection Logic2 selectors
detection:
    selection_webclient:
        Data|contains: 'Net.WebClient'
    selection_download:
        Data|contains:
            - '.DownloadFile('
            - '.DownloadString('
    condition: all of selection_*
False Positives

PowerShell scripts that download content from the Internet

References
1
Resolving title…
trendmicro.com
MITRE ATT&CK
Related Rules
Derived

65531a81-a694-4e31-ae04-f8ba5bc33759

Rule not found
Rule Metadata
Rule ID
3236fcd0-b7e3-4433-b4f8-86ad61a9af2d
Status
test
Level
medium
Type
Detection
Created
Sun Mar 05
Modified
Fri Oct 27
Author
Florian Roth (Nextron Systems)
Path
rules/windows/powershell/powershell_classic/posh_pc_susp_download.yml
Raw Tags
attack.executionattack.t1059.001
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