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Update callback_phishing_nlu_body_or_attachments.yml #2050

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merged 1 commit into from
Nov 5, 2024
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Update callback_phishing_nlu_body_or_attachments.yml #2050

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33 changes: 19 additions & 14 deletions detection-rules/callback_phishing_nlu_body_or_attachments.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,21 +9,26 @@ source: |
and (
any(attachments,
(.file_type in $file_types_images or .file_type == "pdf")
and any(file.explode(.),
and (
any(ml.nlu_classifier(beta.ocr(.).text).intents,
.name == "callback_scam" and .confidence in ("medium", "high")
)
or any(file.explode(.),

// exclude images taken with mobile cameras and screenshots from android
not any(.scan.exiftool.fields,
.key == "Model"
or (
.key == "Software"
and strings.starts_with(.value, "Android")
)
or (.key == "UserComment" and .value == "Screenshot")
)
and any(ml.nlu_classifier(.scan.ocr.raw).intents,
.name == "callback_scam"
and .confidence in ("medium", "high")
)
// exclude images taken with mobile cameras and screenshots from android
not any(.scan.exiftool.fields,
.key == "Model"
or (
.key == "Software"
and strings.starts_with(.value, "Android")
)
or (.key == "UserComment" and .value == "Screenshot")
)
and any(ml.nlu_classifier(.scan.ocr.raw).intents,
.name == "callback_scam"
and .confidence in ("medium", "high")
)
)
)
and (
// negate noreply unless a logo is found in the attachment
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