Low Severity

Body: Yellow highlighted text markers

Description

Detects messages containing multiple HTML span elements with yellow background highlighting (rgb(255, 241, 0)) and data-markjs attributes, potentially indicating evasion techniques through visual markup manipulation.

References

No references.

Sublime Security
Created Jun 16th, 2026 • Last updated Jun 16th, 2026
Source
type.inbound
and regex.icount(body.html.raw,
                 '<span[^>]*data-markjs="true"[^>]*background-color:\s*rgb\(255,\s*241,\s*0\)[^>]*>[^<]'
) >= 2
MQL Rule Console
DocsLearning Labs

Playground

Test against your own EMLs or sample data.

Share

Post about this on your socials.

Get Started. Today.

Managed or self-managed. No MX changes.

Deploy and integrate a free Sublime instance in minutes.
Get Started