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Update body_advance_fee_new_sender.yml #922

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merged 3 commits into from
Jan 30, 2024
Merged

Update body_advance_fee_new_sender.yml #922

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cfbd6ec
Update body_advance_fee_new_sender.yml
morriscode Nov 6, 2023
8a10530
Update body_advance_fee_new_sender.yml
morriscode Jan 30, 2024
78b3919
Merge branch 'main' into morriscode-aff.patch
morriscode Jan 30, 2024
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20 changes: 13 additions & 7 deletions detection-rules/body_advance_fee_new_sender.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -23,17 +23,23 @@ source: |
)
or sender.email.domain.tld in $suspicious_tlds
)
and any(ml.nlu_classifier(body.current_thread.text).tags,
.name == "advance_fee" and .confidence in ("medium", "high")
)
and (
profile.by_sender().prevalence in ("new", "outlier")
any(ml.nlu_classifier(body.current_thread.text).tags,
.name == "advance_fee" and .confidence in ("medium", "high")
)
or (
profile.by_sender().any_messages_malicious_or_spam
and not profile.by_sender().any_false_positives
length(body.current_thread.text) < 200
and regex.icontains(body.current_thread.text,
'(donation|inheritence|\$\d,\d{3}\,\d{3}|lottery)'
)
)
)

and (
not profile.by_sender().solicited
or profile.by_sender().any_messages_malicious_or_spam
)

and not profile.by_sender().any_false_positives
attack_types:
- "BEC/Fraud"
tactics_and_techniques:
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