Sublime Security high experimental mql
Link: Unsolicited email contains link to page containing Tycoon URI structure
Detects links containing Tycoon phishing kit URI patterns with specific alphanumeric sequences separated by exclamation marks or at symbols from unsolicited senders.
Detection Logic
type.inbound
and 0 < length(body.links) < 15
and any(body.links,
any(html.xpath(ml.link_analysis(.).final_dom, '//script//text()').nodes,
// full tycoon uri struct
any(.links,
regex.icontains(.href_url.path,
'^\/[a-z0-9]{0,30}[!@][a-z0-9]{0,30}\/'
)
and not regex.icontains(.href_url.path, '\/[!@][a-z]{2,30}\/')
and not strings.istarts_with(.href_url.domain.domain, 'www.')
and not regex.icontains(.href_url.domain.root_domain,
'(?:fpjs\.io
| (?:medium
| unpkg
| alicdn)\.com
| turtl\.co)'
)
)
)
// tycoon structured path and cloudflare captcha domain
or (
regex.icontains(.display_text,
'\/[a-zA-Z0-9]{0,30}[!@][a-zA-Z0-9]{0,30}\/'
)
and strings.icontains(.display_text, 'challenges.cloudflare.com')
)
) Field Validations
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