MALPEDIA_Win_Owlproxy_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_Owlproxy_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "9642ab2d-7dc5-58a6-b1f9-20da6d2b2d38"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.owlproxy"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.owlproxy_auto.yar#L1-L131"
    license_url        = "N/A"
    logic_hash         = "8f3ab8fd440290f6fe4f2136a06c496cf082fcb282138fdbc332de45a924ef6b"
    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 = { 48 8d 94 24 50 01 00 00 48 8d 8c 24 30 01 00 00 e8 ?? ?? ?? ?? 90 4c 8d 84 24 30 01 00 00 48 83 bc 24 48 01 00 00 08 4c 0f 43 84 24 30 01 00 00 }
    $sequence_1 = { 48 8b cb 48 89 05 ?? ?? ?? ?? ff 15 ?? ?? ?? ?? 48 8d 15 1b 58 01 00 48 33 05 ?? ?? ?? ?? 48 8b cb 48 89 05 ?? ?? ?? ?? }
    $sequence_2 = { 48 89 44 24 28 48 8d 44 24 50 45 33 c0 48 8b cf 66 44 89 a5 88 01 00 00 48 89 44 24 20 ff 15 ?? ?? ?? ?? }
    $sequence_3 = { 48 8d 4c 24 40 e8 ?? ?? ?? ?? eb 27 49 c7 47 18 0f 00 00 00 49 c7 47 10 00 00 00 00 41 c6 07 00 45 33 c0 }
    $sequence_4 = { e8 ?? ?? ?? ?? 44 8b c0 48 8b d3 48 8b ce e8 ?? ?? ?? ?? 84 c0 74 06 }
    $sequence_5 = { e8 ?? ?? ?? ?? 90 48 8b 45 27 4c 8b 4d 0f 66 90 48 83 7d e7 00 74 0a }
    $sequence_6 = { 4c 8b c6 49 8b d7 48 8d 0c 28 e8 ?? ?? ?? ?? 4c 8b 47 08 48 8b 54 24 78 }
    $sequence_7 = { f6 c1 01 75 27 45 8b c6 48 8d 15 6e e1 00 00 66 3b 1a }
    $sequence_8 = { 48 89 44 24 28 48 8d 05 4e ff 01 00 48 89 44 24 40 48 8b 44 24 68 48 63 48 04 48 8d 05 81 fe 01 00 48 89 44 0c 68 }
    $sequence_9 = { 89 44 24 20 4c 8b ce 45 33 c0 48 8b 56 10 48 8b 4d a8 ff 15 ?? ?? ?? ?? 85 c0 }

  condition:
    7 of them and filesize < 475136
}

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

b8d86225-7381-448d-902a-c8e90170771b

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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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