MALPEDIA_Win_Misfox_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_Misfox_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "927dd41c-de40-5a62-bc60-3c93a08d5568"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.misfox"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.misfox_auto.yar#L1-L171"
    license_url        = "N/A"
    logic_hash         = "73f8e08e5f0adb2064a67b9bd6b00ebff7c94d43d789ff956746926b45ea1124"
    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  = { eb 6a 56 e8 ?? ?? ?? ?? 59 83 65 fc 00 8b 04 9d 50 87 01 10 }
    $sequence_1  = { 3d e4 00 00 00 73 09 8b 04 c5 98 23 01 10 5d c3 33 c0 5d }
    $sequence_2  = { c7 05 ?? ?? ?? ?? 01 00 00 00 6a 04 58 6b c0 00 8b 4d 08 89 88 ac 83 01 10 }
    $sequence_3  = { 50 e8 ?? ?? ?? ?? 83 c4 0c 6b 45 e4 30 89 45 e0 8d 80 20 77 01 10 89 45 e4 }
    $sequence_4  = { c7 45 e4 ec 90 01 10 a1 ?? ?? ?? ?? 33 db 43 89 5d e0 50 }
    $sequence_5  = { ff 37 c7 45 b8 00 00 00 00 53 6a 00 51 }
    $sequence_6  = { 8b 45 b8 52 c7 03 00 00 00 00 40 ff 37 89 45 b8 }
    $sequence_7  = { 0f 85 15 01 00 00 51 ba 00 02 00 00 c7 44 24 48 00 08 00 00 8d 4c 24 34 89 44 24 44 }
    $sequence_8  = { 48 c7 c1 01 00 00 80 c7 45 0b 00 02 00 00 48 89 44 24 20 44 89 75 07 ff 15 ?? ?? ?? ?? }
    $sequence_9  = { 45 8b c5 48 8d 95 30 06 00 00 48 03 d0 48 8b 44 24 48 48 8d 0d c6 da 00 00 }
    $sequence_10 = { 48 8b 4c 24 70 48 89 4b 10 48 89 53 18 e9 ?? ?? ?? ?? 48 8d 57 20 }
    $sequence_11 = { 48 89 85 a0 04 00 00 4c 8b 95 f8 04 00 00 48 8d 05 2c e0 00 00 4c 8b d9 48 8d 4c 24 30 }
    $sequence_12 = { f0 ff 0b 75 16 48 8d 05 64 52 01 00 48 8b 4c 24 30 48 3b c8 }
    $sequence_13 = { 48 8d 15 fd bc 00 00 48 33 05 ?? ?? ?? ?? 48 8b cb 48 89 05 ?? ?? ?? ?? ff 15 ?? ?? ?? ?? 48 8d 15 f7 bc 00 00 }
    $sequence_14 = { ff 15 ?? ?? ?? ?? 85 c0 75 47 48 8b 0f 48 8d 15 dd 6b 01 00 }
    $sequence_15 = { 75 3e 0f b6 55 30 0f b6 45 31 66 41 0f af d5 }

  condition:
    7 of them and filesize < 266240
}

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

683d824b-150e-4c0d-9012-7bde77e97f61

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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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