MALPEDIA_Win_Smac_Auto

YARA detection rule by Felix Bilstein - yara-signator at cocacoding dot com · GPL-2.0

autogenerated rule brought to you by yara-signator

rule MALPEDIA_Win_Smac_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "b9e948cf-fc1c-55b5-a40e-593d0b67f4eb"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.smac"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.smac_auto.yar#L1-L129"
    license_url        = "N/A"
    logic_hash         = "69ecbaffb88ef2eb7b0bb4fc54b666c372bcfee7df6d63633067f160f5f10295"
    score              = 75
    quality            = 75
    tags               = "FILE"
    version            = "1"
    tool               = "yara-signator v0.6.0"
    signator_config    = "callsandjumps;datarefs;binvalue"
    malpedia_rule_date = "20231130"
    malpedia_hash      = "fc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351"
    malpedia_version   = "20230808"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"

  strings:
    $sequence_0 = { 66 89 85 48 ff ff ff 8b c3 66 89 85 4a ff ff ff 58 6a 74 66 89 85 4c ff ff ff 58 }
    $sequence_1 = { 39 bd 78 fe ff ff 0f 86 b8 00 00 00 ff b5 78 fe ff ff e8 ?? ?? ?? ?? ff b5 78 fe ff ff 8b f0 57 }
    $sequence_2 = { 66 89 45 ec 66 89 75 ea 8d 85 98 fe ff ff 8b f4 89 a5 78 fe ff ff 50 }
    $sequence_3 = { 8d 9d 44 ff ff ff e8 ?? ?? ?? ?? 6a 01 33 ff 8b f3 e8 ?? ?? ?? ?? 8b 1d ?? ?? ?? ?? }
    $sequence_4 = { e8 ?? ?? ?? ?? 83 ec 1c c6 84 24 90 01 00 00 0e 8d 84 24 84 00 00 00 8b f4 89 64 24 5c }
    $sequence_5 = { 89 45 f0 3b c3 75 14 6a 01 33 ff 8d 75 08 e8 ?? ?? ?? ?? }
    $sequence_6 = { 83 c4 2c 33 f6 46 5b ff b5 f4 80 ff ff ff 15 ?? ?? ?? ?? }
    $sequence_7 = { 89 86 d8 00 00 00 ff d7 89 86 dc 00 00 00 8b c6 e8 ?? ?? ?? ?? c2 08 00 6a 00 }
    $sequence_8 = { 8b f4 89 a5 78 fe ff ff 50 e8 ?? ?? ?? ?? 83 ec 1c c6 45 fc 04 8d 45 28 }
    $sequence_9 = { 66 89 9d 42 ff ff ff 5b 6a 74 66 89 9d 44 ff ff ff 5b }

  condition:
    7 of them and filesize < 212992
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

66455410-b60f-493b-878d-7dd3e4c03f86

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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