MALPEDIA_Win_Lethic_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_Lethic_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "89881c0c-ddd2-5773-9144-03db6590b3cc"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.lethic"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.lethic_auto.yar#L1-L121"
    license_url        = "N/A"
    logic_hash         = "3125ec39e54752d0947a08a6149f6c0dbb19d9ccd38ebef90b278b6227c3cc5c"
    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 = { 83 7d f4 00 75 07 33 c0 e9 ?? ?? ?? ?? 8b 55 f4 8b 42 18 }
    $sequence_1 = { 33 c0 e9 ?? ?? ?? ?? 8b 45 fc 8b 4d 10 89 48 04 }
    $sequence_2 = { 50 8b 4d fc 83 c1 08 51 8b 55 f4 }
    $sequence_3 = { 8b 45 fc 8b 08 89 4d fc eb ec 8b 55 fc }
    $sequence_4 = { eb 42 6a 10 8b 55 fc 83 c2 08 52 }
    $sequence_5 = { eb ec 8b 55 fc 8b 45 f4 8b 08 89 0a 8b 55 fc }
    $sequence_6 = { 89 45 fc c7 45 f8 01 00 00 00 83 7d fc 00 75 07 33 c0 e9 ?? ?? ?? ?? 8b 45 fc }
    $sequence_7 = { 3b 55 f8 74 11 8b 45 fc c6 00 00 }
    $sequence_8 = { 8b 08 89 0a 8b 55 fc 8b 02 89 45 fc 8b 4d f4 51 }
    $sequence_9 = { eb 42 6a 10 8b 55 fc 83 c2 08 52 8b 45 fc 8b 48 18 }

  condition:
    7 of them and filesize < 81920
}

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

fb0a5cbf-475c-48b0-b163-2b38143cffbb

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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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