MALPEDIA_Win_Skip20_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_Skip20_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "82237026-0542-5063-b5ce-819de193cfa5"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.skip20"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.skip20_auto.yar#L1-L127"
    license_url        = "N/A"
    logic_hash         = "21de0ff5fbd1c6f42d6edbb2c240ff9a5cc9d69d730f1c14e8fabd969797a013"
    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 = { 85 c9 74 48 ff c9 74 32 ff c9 0f 85 15 0a 00 00 }
    $sequence_1 = { 78 2e 3b 0d ?? ?? ?? ?? 73 26 48 63 c9 48 8d 15 04 fe 04 00 48 8b c1 }
    $sequence_2 = { 0f b7 4c 24 7a 0f b7 54 24 78 89 44 24 38 89 4c 24 30 89 54 24 28 48 8d 15 e6 2f 01 00 }
    $sequence_3 = { 74 1c 3d 00 01 00 00 74 0e 3d 00 02 00 00 75 36 41 80 49 33 47 eb 2f }
    $sequence_4 = { e9 ?? ?? ?? ?? 48 83 bc 24 e0 00 00 00 00 74 09 83 fa 01 0f 84 2c f9 ff ff 83 fa 05 }
    $sequence_5 = { 48 8d b4 24 ec 00 00 00 0f 1f 00 41 3b fc 73 2a 44 8b 06 8b d7 }
    $sequence_6 = { 41 8b b4 82 a0 8a 01 00 eb 07 4c 8d 15 b4 b2 ff ff 8b d6 81 e2 00 00 40 00 74 7e 41 ff 4c 24 18 }
    $sequence_7 = { 48 8d 3d 07 1f 05 00 ba 58 00 00 00 48 8b cd e8 ?? ?? ?? ?? 48 85 c0 74 68 }
    $sequence_8 = { 89 54 24 28 48 8d 15 65 2f 01 00 44 0f b7 44 24 70 44 0f b7 4c 24 72 44 0f b7 54 24 76 44 89 54 24 20 48 8d 0d b7 2f 01 00 }
    $sequence_9 = { 89 44 24 38 0f b7 4c 24 7a 89 4c 24 30 0f b7 54 24 78 89 54 24 28 48 8d 15 ae 29 01 00 }

  condition:
    7 of them and filesize < 794624
}

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

05fc3577-20ce-47d9-a3a8-bdcb7cbfb65b

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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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