Files
blue-team-tools/rules/macos/process_creation/proc_creation_macos_nscurl_usage.yml
T
Daniel Cortez d7bd6001d1 Merge PR #4773 from @DefenderDaniel - Add rules covering Nscurl usage
new: File Download Via Nscurl - MacOS 

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Co-authored-by: nasbench <8741929+nasbench@users.noreply.github.com>
2024-06-05 10:22:39 +02:00

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996 B
YAML

title: File Download Via Nscurl - MacOS
id: 6d8a7cf1-8085-423b-b87d-7e880faabbdf
status: experimental
description: Detects the execution of the nscurl utility in order to download files.
references:
- https://www.loobins.io/binaries/nscurl/
- https://www.agnosticdev.com/content/how-diagnose-app-transport-security-issues-using-nscurl-and-openssl
- https://gist.github.com/nasbench/ca6ef95db04ae04ffd1e0b1ce709cadd
author: Daniel Cortez
date: 2024/06/04
tags:
- attack.defense_evasion
- attack.command_and_control
- attack.t1105
logsource:
category: process_creation
product: macos
detection:
selection:
Image|endswith: '/nscurl'
CommandLine|contains:
- '--download '
- '--download-directory '
- '--output '
- '-dir '
- '-dl '
- '-ld'
- '-o '
condition: selection
falsepositives:
- Legitimate usage of nscurl by administrators and users.
level: medium