MALPEDIA_Win_Absentloader_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_Absentloader_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "9aab04f2-7678-5cf8-8d74-f6db3f7fcf22"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.absentloader"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.absentloader_auto.yar#L1-L132"
    license_url        = "N/A"
    logic_hash         = "77496690e6eb66a44354cd3e27ded72ee59f2468546d53e2a80ae68b108dd0bf"
    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 = { fe 81 b8 94 06 fd 89 14 8d 90 94 06 fd 8d 4d fc e8 ?? ?? ?? ?? 5e c9 c3 }
    $sequence_1 = { eb 16 66 c7 04 37 5c 6e eb 0e 66 c7 04 37 5c 74 eb 06 66 c7 04 37 5c 62 83 c6 02 }
    $sequence_2 = { e8 ?? ?? ?? ?? c6 45 fc 12 8b cb 0f 28 05 ?? ?? ?? ?? 0f 11 45 b4 6a 7f }
    $sequence_3 = { 74 0f 33 c0 80 b0 34 a6 06 fd 2e 40 83 f8 14 72 f3 8b 0d ?? ?? ?? ?? }
    $sequence_4 = { 8b ec 56 ff 75 08 8b f1 e8 ?? ?? ?? ?? c7 06 84 1e 05 fd }
    $sequence_5 = { 74 08 3a 8a c0 5d 05 fd 75 5a 8b 06 8a 08 40 42 }
    $sequence_6 = { 7e 37 68 f8 aa 06 fd e8 ?? ?? ?? ?? 83 3d ?? ?? ?? ?? ff 59 75 23 bf fc aa 06 fd }
    $sequence_7 = { 74 17 68 27 13 00 00 68 30 f4 05 fd 68 34 16 06 fd e8 ?? ?? ?? ?? 83 c4 0c 83 7f 2c 00 }
    $sequence_8 = { c9 c3 6a 08 b8 a3 03 05 fd e8 ?? ?? ?? ?? 8b f1 89 75 ec }
    $sequence_9 = { 84 db 74 3b 8b 46 08 83 78 fc 00 74 32 83 ec 10 8d 46 68 }

  condition:
    7 of them and filesize < 794624
}

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

5e459eb8-de50-4230-8317-ed5130b0f040

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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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