High Severity

Attachment: Fake mobileconfig security update profile

Description

Detects .mobileconfig attachments that present themselves as an Apple 'Security Update' configuration profile but omit the PayloadContent section required for a legitimate profile. These crafted files are used as a lure to trick recipients into installing a bogus update, often paired with payment or account-themed subject lines and disposable or spoofed sender domains.

References

No references.

Sublime Security
Created Sep 25th, 2026 • Last updated Sep 25th, 2026
Source
type.inbound
and any(attachments,
        .file_extension == "mobileconfig"
        and strings.icontains(file.parse_text(.).text,
                              '<key>PayloadDisplayName</key><string>Security Update '
        )
        and not strings.icontains(file.parse_text(.).text, 'PayloadContent')
)
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