MALPEDIA_Win_Disk_Knight_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_Disk_Knight_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "9beebfb6-ef57-52bd-934c-31d9b91ab2bc"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.disk_knight"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.disk_knight_auto.yar#L1-L133"
    license_url        = "N/A"
    logic_hash         = "e89ae24c28bc10924a7fb7bbea0ccafb184ecff432361cc9f981384efa6a4077"
    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 = { 89 7d 8c 89 7d 88 ff 15 ?? ?? ?? ?? 8b 1d ?? ?? ?? ?? 8d 4d c4 51 }
    $sequence_1 = { c7 45 f0 e0 1b 40 00 33 c0 89 45 f4 89 45 f8 88 45 e0 6a 01 ff 15 ?? ?? ?? ?? }
    $sequence_2 = { ff 15 ?? ?? ?? ?? f7 d8 1b c0 23 f0 8d 45 b0 50 8d 4d c0 }
    $sequence_3 = { 8d 8d 7c ff ff ff 51 56 ff 52 20 db e2 85 c0 7d 0f }
    $sequence_4 = { 8b 47 10 8d 55 94 52 50 8b 08 ff 91 38 01 00 00 85 c0 }
    $sequence_5 = { 89 50 04 8b 8d 48 ff ff ff 89 48 08 8b 95 4c ff ff ff 89 50 0c 8b 85 e0 fe ff ff 8b 08 }
    $sequence_6 = { 3b c8 7d 7d 8d 95 74 ff ff ff 52 6a 01 56 e8 ?? ?? ?? ?? }
    $sequence_7 = { ff 15 ?? ?? ?? ?? 8b 3d ?? ?? ?? ?? 83 c4 0c 85 f6 0f 84 d1 01 00 00 a1 ?? ?? ?? ?? 85 c0 }
    $sequence_8 = { e8 ?? ?? ?? ?? 8b f0 ff 15 ?? ?? ?? ?? 8d 54 24 0c 8d 84 24 a0 00 00 00 52 50 }
    $sequence_9 = { 8b 45 d0 0f 80 ea 06 00 00 69 db 00 01 00 00 99 0f 80 dd 06 00 00 2b c2 89 9d 10 ff ff ff }

  condition:
    7 of them and filesize < 868352
}

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

3606ec2a-5baf-42f7-8e8d-7fa430d7f875

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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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