Detection rules › Sublime MQL

DLP: France Tax Identification Number (SPI)

Severity
medium
Type
dlp
Source
github.com/sublime-security/sublime-rules

Detects messages containing French Tax Identification Numbers (Numéro SPI).

Event coverage

Rule body MQL

type.outbound
and any([body.current_thread.text, subject.subject],
        // French Tax ID (SPI): 13 digits
        regex.contains(., '\b\d{13}\b')
)
and any([body.current_thread.text, subject.subject],
        regex.icontains(., 'numéro\s+fiscal|SPI|tax\s+identification')
)
and (
  strings.icontains(sender.email.domain.tld, "fr")
  or strings.icontains(body.current_thread.text, "france")
)

Detection logic

Scope: outbound message.

Detects messages containing French Tax Identification Numbers (Numéro SPI).

  1. outbound message
  2. any of [body.current_thread.text, subject.subject] where:
    • . matches '\\b\\d{13}\\b'
  3. any of [body.current_thread.text, subject.subject] where:
    • . matches 'numéro\\s+fiscal|SPI|tax\\s+identification'
  4. any of:
    • sender.email.domain.tld contains 'fr'
    • body.current_thread.text contains 'france'

Inspects: body.current_thread.text, sender.email.domain.tld, subject.subject, type.outbound. Sensors: regex.contains, regex.icontains, strings.icontains.

Indicators matched (4)

FieldMatchValue
regex.containsregex\b\d{13}\b
regex.icontainsregexnuméro\s+fiscal|SPI|tax\s+identification
strings.icontainssubstringfr
strings.icontainssubstringfrance