← All detection heuristics · Social Engineering
high
SE_FAKE_CAPTCHA
What it means
Document displays a fake CAPTCHA or robot-verification prompt.
Why it fires
The rule matches CAPTCHA or human-verification phrases ('verify you are not a robot', 'complete the verification', etc.) in document text. In malicious lures this is typically the framing for a ClickFix-style step that asks the user to paste a command, but the rule fires on the verification language alone.
Other Social Engineering heuristics
SE_BOOKING_COMPLAINT_PHISH PDF_FAKE_DOCUMENT_COMPONENT_INSTALLER OOXML_QR_CREDENTIAL_PHISH SE_CALLBACK_SCAM_TEMPLATE PDF_BRAND_ACCOUNT_UPDATE_REDIRECT_LURE PDF_IMAGE_REPEATED_DECOY_REDIRECT_LURE PDF_IMAGE_DOCUMENT_REVIEW_HOST_LURE PDF_LOCALIZED_DOWNLOAD_HOSTING_LURE PDF_MINIMAL_VIEW_DOCUMENT_REDIRECT PDF_NESTED_ENCODED_CROSSHOST_REDIRECT PDF_RFP_EXTERNAL_ACTION_LURE PDF_UTILITY_REFUND_OFFDOMAIN_LURE PDF_SPARSE_MOVED_ARTICLE_DOORWAY