• Sublime Core Feed
High Severity

Attachment: ICS with employee policy review lure

Description

Detects ICS calendar attachments containing references to 'policy review' and 'secure access' terminology, which may be used in social engineering attacks to prompt users to take action under the guise of compliance or security requirements.

References

No references.

Sublime Security
Created Mar 16th, 2026 • Last updated Mar 16th, 2026
Source
type.inbound
and any(filter(attachments,
               .file_type in~ ('ics')
               or .content_type in ("text/calendar", "application/ics")
        ),
        any(file.explode(.),
            .depth == 0
            and any(.scan.strings.strings,
                    strings.icontains(., 'policy review')
            )
            and any(.scan.strings.strings,
                    strings.icontains(., 'secure access')
            )
        )
)
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