frack113
36 lines
1.0 KiB
YAML
36 lines
1.0 KiB
YAML
title: Suspicious Desktopimgdownldr Command
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id: bb58aa4a-b80b-415a-a2c0-2f65a4c81009
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status: test
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description: Detects a suspicious Microsoft desktopimgdownldr execution with parameters used to download files from the Internet
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author: Florian Roth
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references:
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- https://labs.sentinelone.com/living-off-windows-land-a-new-native-file-downldr/
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- https://twitter.com/SBousseaden/status/1278977301745741825
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date: 2020/07/03
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modified: 2021/11/27
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logsource:
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category: process_creation
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product: windows
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detection:
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selection1:
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CommandLine|contains: ' /lockscreenurl:'
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selection1_filter:
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CommandLine|contains:
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- '.jpg'
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- '.jpeg'
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- '.png'
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selection_reg:
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CommandLine|contains|all:
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- 'reg delete'
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- '\PersonalizationCSP'
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condition: ( selection1 and not selection1_filter ) or selection_reg
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fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- False positives depend on scripts and administrative tools used in the monitored environment
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level: high
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tags:
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- attack.command_and_control
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- attack.t1105
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