win_darkcomet_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 win_darkcomet_auto {
  meta:
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    date               = "2020-10-14"
    version            = "1"
    description        = "autogenerated rule brought to you by yara-signator"
    tool               = "yara-signator v0.5.0"
    signator_config    = "callsandjumps;datarefs;binvalue"
    malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.darkcomet"
    malpedia_rule_date = "20201014"
    malpedia_hash      = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
    malpedia_version   = "20201014"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0 = { 64 89 20 8b 45 ec c6 40 48 01 33 d2 55 68 ?? ?? ?? ?? 64 ff 32 }
                                    $sequence_1 = { 83 7f 48 00 0f 85 8c 03 00 00 6a 00 6a 01 6a 02 e8 ?? ?? ?? ?? 89 45 fc }
                                    $sequence_2 = { 8d 45 ec ba ?? ?? ?? ?? e8 ?? ?? ?? ?? 83 7d e8 00 75 0d 8d 45 e8 ba ?? ?? ?? ?? }
                                    $sequence_3 = { 88 85 43 fe ff ff 8b 55 f4 b8 ?? ?? ?? ?? e8 ?? ?? ?? ?? 8b c8 8d 45 f4 ba 01 00 00 00 }
                                    $sequence_4 = { ff 30 8d 8d c4 fe ff ff 8b d6 8b 45 e8 8b 38 ff 57 0c }
                                $sequence_5 = { 33 c0 55 68 ?? ?? ?? ?? 64 ff 30 64 89 20 8b 46 44 85 c0 }
                                    $sequence_6 = { 8b 45 f8 ba ?? ?? ?? ?? e8 ?? ?? ?? ?? 75 09 b0 01 e8 ?? ?? ?? ?? eb 07 }
                                    $sequence_7 = { 6a 00 56 8d 43 40 50 8d 45 f0 50 e8 ?? ?? ?? ?? }
                                    $sequence_8 = { 8d 45 f8 b9 0d 00 00 00 ba 01 00 00 00 e8 ?? ?? ?? ?? 8d 45 f4 8b 55 f8 e8 ?? ?? ?? ?? }
                                    $sequence_9 = { ba ?? ?? ?? ?? e8 ?? ?? ?? ?? 8b 95 94 f9 ff ff 33 c0 e8 ?? ?? ?? ?? 68 ?? ?? ?? ?? 8d 85 90 f9 ff ff }
                
  condition:
    7 of them and filesize < 1499136
}

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

7cfff008-960b-40c7-9cc9-ccdba8a8ab7e

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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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