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Update regex string in BEC w/ mobile soliciation #4504

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Update regex string in BEC w/ mobile soliciation #4504

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3 changes: 2 additions & 1 deletion detection-rules/body_bec_mobile_solicitation.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ source: |
)
and length(attachments) == 0
and regex.icontains(body.current_thread.text,
'(?:mobile|contact|current|reliable).{0,10}(?:phone|number|#|\bno)|whatsapp|\bcell|personalcell|(?:share|what).{0,25}number.{0,15}(?:connect|reach|text|message|contact|call)|(?:\bdrop|which|send.{0,5}your|best).{0,25}(?:number|\bnum\b|#).{0,15}(?:(?:connect|reach|contact|call).{0,5}you|text|message|works?\b)|forward.{0,25}(?:\bnum\b|#)|get (?:your.{0,25}(?:number|\bnum\b|#)|in touch.{0,15}(?:via|by|through).{0,10}(?:text|phone|cell|sms|whatsapp))|(?:provide|confirm|reply.{0,15}with).{0,25}(?:direct|preferred).{0,15}(?:text.?enabled.{0,15})?(?:phone.{0,5})?(?:number|\bnum\b|#|line)|(?:share|send).{0,25}(?:direct|preferred).{0,15}(?:text.?enabled.{0,15})?(?:phone.{0,5})(?:number|\bnum\b|#|line)|(?:share|send).{0,25}preferred.{0,15}(?:text.?enabled.{0,15})?(?:number|\bnum\b|#|line)|(?:direct|preferred).{0,15}line.{0,15}(?:for|to|via).{0,10}(?:text|call|reach|contact|sms)'
'(?:mobile|contact|current|reliable).{0,10}(?:phone|number|#|\bno)|whatsapp|\bcell|personalcell|(?:share|what).{0,25}number.{0,15}(?:connect|reach|text|message|contact|call)|(?:\bdrop|which|send.{0,5}your|best).{0,25}(?:number|\bnum\b|#).{0,15}(?:(?:connect|reach|contact|call).{0,5}you|text|message|works?\b|stay connected)|forward.{0,25}(?:\bnum\b|#)|get (?:your.{0,25}(?:number|\bnum\b|#)|in touch.{0,15}(?:via|by|through).{0,10}(?:text|phone|cell|sms|whatsapp))|(?:provide|confirm|reply.{0,15}with).{0,25}(?:direct|preferred).{0,15}(?:text.?enabled.{0,15})?(?:phone.{0,5})?(?:number|\bnum\b|#|line)|(?:share|send).{0,25}(?:direct|preferred).{0,15}(?:text.?enabled.{0,15})?(?:phone.{0,5})(?:number|\bnum\b|#|line)|(?:share|send).{0,25}preferred.{0,15}(?:text.?enabled.{0,15})?(?:number|\bnum\b|#|line)|(?:direct|preferred).{0,15}line.{0,15}(?:for|to|via).{0,10}(?:text|call|reach|contact|sms)'
)
and (
any(ml.nlu_classifier(body.current_thread.text).intents,
Expand Down Expand Up @@ -65,6 +65,7 @@ source: |
or profile.by_sender().any_messages_malicious_or_spam
)
and not profile.by_sender().any_messages_benign

attack_types:
- "BEC/Fraud"
tactics_and_techniques:
Expand Down
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