mirror of
https://github.com/Yara-Rules/rules
synced 2026-06-08 12:58:40 +00:00
Michal Ambroz
35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
/*
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This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and
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open to any user or organization, as long as you use it under this license.
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*/
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rule with_attachment : mail {
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meta:
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author = "Antonio Sanchez <asanchez@hispasec.com>"
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reference = "http://laboratorio.blogs.hispasec.com/"
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description = "Rule to detect the presence of an or several attachments"
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strings:
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$attachment_id = "X-Attachment-Id"
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condition:
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$attachment_id
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}
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rule without_attachments : mail {
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meta:
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author = "Antonio Sanchez <asanchez@hispasec.com>"
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reference = "http://laboratorio.blogs.hispasec.com/"
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description = "Rule to detect the no presence of any attachment"
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strings:
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$eml_01 = "From:"
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$eml_02 = "To:"
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$eml_03 = "Subject:"
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$attachment_id = "X-Attachment-Id"
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$mime_type = "Content-Type: multipart/mixed"
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condition:
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all of ( $eml_* ) and
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not $attachment_id and
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not $mime_type
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}
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