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Identify shebang files via Threat Hunting (+ KQL Queries)

ID: 56f9222a-9bbe-5c2b-8402-530b2e085a10

STIX ID: report--56f9222a-9bbe-5c2b-8402-530b2e085a10

Feed Name: Detect FYI

Date Published: 2026-06-10

Date Updated: 2026-06-10

Author: Sergio Albea

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This post defines shebang (#!) scripts used on Unix-like systems and provides practical Kusto Query Language (KQL) examples to hunt for shebang files in Microsoft Defender telemetry—covering detection of attachments, files in suspicious directories, and scripts disguised with benign extensions—while recommending whitelisting to reduce false positives.

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