MALPEDIA_Win_Lambert_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_Lambert_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "1c692e32-84a7-5d90-ba02-61a84edfcff0"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.lambert"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.lambert_auto.yar#L1-L166"
    license_url        = "N/A"
    logic_hash         = "9e5ed22ba49a751e07cf4ea652d26902b7b8b831105840a55340dbe6f75e09b9"
    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  = { 33 f2 8b 55 e8 33 ce 33 d1 }
    $sequence_1  = { 4e 8b 1f 89 19 2b f0 }
    $sequence_2  = { 3b d8 0f 82 6f 01 00 00 8a 07 88 01 41 47 }
    $sequence_3  = { 3b d8 0f 82 a4 00 00 00 83 fe 06 0f 82 2c ff ff ff }
    $sequence_4  = { 55 8b ec 56 8b 75 10 c1 fe 04 }
    $sequence_5  = { 2b c1 3b c7 0f 82 e5 01 00 00 8b 45 08 2b c2 8d 77 01 }
    $sequence_6  = { 33 f1 8b 4d e4 33 ce 31 4d e8 }
    $sequence_7  = { 3b 7d 10 72 4d 3b f9 73 49 8b c3 2b c1 }
    $sequence_8  = { 6a 00 e8 ?? ?? ?? ?? 89 45 fc 8b 45 fc 89 45 f4 8b 4d f4 8b 55 f4 }
    $sequence_9  = { 50 e8 ?? ?? ?? ?? 89 45 e8 8b 4d e8 3b 4d 10 75 0f }
    $sequence_10 = { 83 ec 18 8b 45 0c 8b 48 14 89 4d f0 8b 55 0c 8b 45 08 }
    $sequence_11 = { 74 1f 8b 4d f8 c1 e9 0d 8b 55 f8 }
    $sequence_12 = { eb ce 8b 45 f8 8b e5 5d c2 04 00 55 8b ec }
    $sequence_13 = { 8b 51 0c 8b 42 1c 89 45 f4 8b 4d f4 89 4d f0 }
    $sequence_14 = { 3b 51 18 73 34 8b 45 fc 8b 4d ec }
    $sequence_15 = { e8 ?? ?? ?? ?? 89 45 f8 8b 4d f8 3b 4d 08 75 08 8b 55 f4 }

  condition:
    7 of them and filesize < 1212416
}

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

ec9c4ced-ebbc-4888-aa4f-0aac88d79efe

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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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