MALPEDIA_Win_Kivars_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_Kivars_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "81082c3d-5064-55a3-8cee-83fb88e85d6c"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.kivars"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.kivars_auto.yar#L1-L170"
    license_url        = "N/A"
    logic_hash         = "57db268647853b0be399381edf4cd6dc1a86ac28f0c0a8c22aae4b45830a7fb0"
    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  = { c7 05 ?? ?? ?? ?? 00 00 00 00 c6 44 24 54 23 c7 44 24 50 02 00 00 00 48 8d 4c 24 50 e8 ?? ?? ?? ?? }
    $sequence_1  = { 8d 54 24 40 89 44 24 4c 89 4c 24 3c 6a 14 }
    $sequence_2  = { 8d 8c 24 7c 01 00 00 51 e8 ?? ?? ?? ?? 83 c4 04 33 c0 5f 5e }
    $sequence_3  = { 44 89 4c 24 20 4c 89 44 24 18 89 54 24 10 48 89 4c 24 08 48 81 ec a8 00 00 00 48 8b 05 ?? ?? ?? ?? }
    $sequence_4  = { ff 15 ?? ?? ?? ?? 8b c8 8d 73 08 83 e9 08 8d bc 24 92 00 00 00 8b d1 }
    $sequence_5  = { 48 89 84 24 70 02 00 00 ff 15 ?? ?? ?? ?? 89 84 24 30 02 00 00 c7 84 24 20 02 00 00 01 00 00 00 c7 84 24 2c 02 00 00 02 00 00 00 c6 44 24 70 7d }
    $sequence_6  = { 75 5d 4c 8b 84 24 e0 05 00 00 48 8d 94 24 60 02 00 00 48 8d 8c 24 50 01 00 00 e8 ?? ?? ?? ?? }
    $sequence_7  = { 48 83 c0 05 48 89 44 24 28 48 8b 84 24 70 10 00 00 48 83 c0 09 }
    $sequence_8  = { 89 4c 24 30 89 44 24 44 89 4c 24 34 89 44 24 48 89 4c 24 38 8d 54 24 40 89 44 24 4c }
    $sequence_9  = { 48 8d 94 24 40 01 00 00 48 8d 4c 24 30 e8 ?? ?? ?? ?? 8b 44 24 34 83 e0 01 85 c0 }
    $sequence_10 = { 50 8b 4d 18 51 8d 55 14 }
    $sequence_11 = { 74 76 eb 09 80 fb 3d 0f 84 89 00 00 00 0f be 5c 24 12 c0 e2 02 8a 5c 1c 14 }
    $sequence_12 = { 48 8b c8 ff 15 ?? ?? ?? ?? 8b 84 24 60 11 00 00 ff c0 }
    $sequence_13 = { 83 ff fe 74 1b 83 ff ff 0f 85 8c 00 00 00 8d 8c 24 7c 01 00 00 }
    $sequence_14 = { 8b f0 83 c6 09 33 ff 6a 74 89 7c 24 14 e8 ?? ?? ?? ?? 83 c4 04 }
    $sequence_15 = { 48 89 4c 24 08 48 81 ec 68 03 00 00 48 c7 84 24 48 03 00 00 fe ff ff ff 48 8d 8c 24 30 01 00 00 e8 ?? ?? ?? ?? }

  condition:
    7 of them and filesize < 196608
}

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

40382f28-d8c5-418b-a4a9-52e59c3e2a40

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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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