• Sublime Core Feed
High Severity

Attachment soliciting user to enable macros

Labels

Malware/Ransomware
Macros
Archive analysis
File analysis
Macro analysis
Optical Character Recognition
Sender analysis

Description

Recursively scans files and archives to detect documents that ask the user to enable macros, including if that text appears within an embedded image.

References

Sublime Security
Created Aug 17th, 2023 • Last updated Dec 19th, 2023
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and any(attachments,
        (
          .file_extension in~ $file_extensions_macros
          or .file_extension in~ $file_extensions_common_archives
          or (
              .file_extension is null
              and .file_type == "unknown"
              and .content_type == "application/octet-stream"
              and .size < 100000000
          )
        )
        and any(file.explode(.),
                strings.ilike(.scan.ocr.raw, "*please*enable*macros")
                or any(.scan.strings.strings, strings.ilike(., "*please enable macros*"))
        )
)
and (
  not profile.by_sender().solicited
  or (
    profile.by_sender().any_messages_malicious_or_spam
    and not profile.by_sender().any_false_positives
  )
)
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