MALPEDIA_Win_Molerat_Loader_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_Molerat_Loader_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "6649c702-0322-5056-bfb1-5bb59b0b659a"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.molerat_loader"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.molerat_loader_auto.yar#L1-L132"
    license_url        = "N/A"
    logic_hash         = "9e4d3c42bd1eb8db57dd9c545f5a5ad86009e39e60f601bd2428ef16d555d86e"
    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 c4 0c 68 ?? ?? ?? ?? 50 8d 8d c0 fd ff ff 51 c6 45 fc 18 }
    $sequence_1 = { 68 ?? ?? ?? ?? e8 ?? ?? ?? ?? 8b 4d 58 e8 ?? ?? ?? ?? e9 ?? ?? ?? ?? 68 ?? ?? ?? ?? e8 ?? ?? ?? ?? }
    $sequence_2 = { 7d 0d 8a 4c 18 1c 88 88 60 46 44 00 40 eb e9 33 c0 89 45 e4 }
    $sequence_3 = { 83 c4 0c 8d 95 7c ff ff ff 52 50 8d 85 d0 fd ff ff 50 c6 45 fc 3a }
    $sequence_4 = { 50 8b 42 04 ff d0 8d 4d 0c e8 ?? ?? ?? ?? 8d 8d a0 fd ff ff c6 45 fc 07 }
    $sequence_5 = { 7f 0a 8b 08 8b 11 50 8b 42 04 ff d0 c6 45 fc 69 }
    $sequence_6 = { 8b 95 ec fe ff ff 89 95 e8 fe ff ff c7 45 fc 01 00 00 00 b8 ?? ?? ?? ?? c3 c6 45 fc 00 }
    $sequence_7 = { 8d 4c 24 7c c6 84 24 d8 00 00 00 02 e8 ?? ?? ?? ?? 8d 54 24 7c 52 c7 84 24 80 00 00 00 e8 c6 43 00 e8 ?? ?? ?? ?? }
    $sequence_8 = { 83 c0 10 83 c4 04 89 45 e8 68 ?? ?? ?? ?? 68 ?? ?? ?? ?? 8d 4d e4 51 }
    $sequence_9 = { 8d 8d 74 ff ff ff c6 45 fc 03 e8 ?? ?? ?? ?? 8d 85 74 ff ff ff 50 8d 4d 5c 68 ?? ?? ?? ?? }

  condition:
    7 of them and filesize < 688128
}

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

42b586b0-88df-4b44-962c-cd23d06e1144

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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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