win_dbatloader_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_dbatloader_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.dbatloader"
    malpedia_rule_date = "20201014"
    malpedia_hash      = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
    malpedia_version   = "20201014"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0  = { 8b 45 04 03 c5 8b e8 8b c5 2b 44 24 14 }
                            $sequence_1  = { 66 81 e1 ff 0f 0f b7 c9 03 c1 01 10 }
                        $sequence_2  = { 8b 54 24 04 8b 52 28 8b c6 03 d0 89 15 ?? ?? ?? ?? 6a 00 6a 01 }
                                    $sequence_3  = { e8 ?? ?? ?? ?? 89 44 24 18 8b dd 83 c3 08 8b 7c 24 18 4f }
                                $sequence_4  = { e8 ?? ?? ?? ?? 50 8b 43 08 50 8b 43 0c 03 c6 50 }
                                    $sequence_5  = { 89 44 24 20 df 6c 24 1c d8 35 ?? ?? ?? ?? e8 ?? ?? ?? ?? 89 44 24 18 }
                            $sequence_6  = { 8b 45 00 03 c6 0f b7 0b 66 81 e1 ff 0f 0f b7 c9 }
                            $sequence_7  = { 8b 5c 24 04 81 c3 f8 00 00 00 8b 44 24 04 0f b7 78 06 }
                        $sequence_8  = { 89 44 24 0c 8b 44 24 0c 89 48 34 8b 44 24 0c 05 f8 00 00 00 }
                            $sequence_9  = { 50 8b 44 24 10 8b 40 34 50 e8 ?? ?? ?? ?? }
                            $sequence_10 = { e9 ?? ?? ?? ?? 90 90 90 90 90 90 }
                                    $sequence_11 = { 90 90 81 ca 80 00 00 00 eb 52 90 }
                            $sequence_12 = { 90 90 90 83 ca 10 8b c2 c3 }
                                $sequence_13 = { 33 c0 89 44 24 40 df 6c 24 3c d8 35 ?? ?? ?? ?? e8 ?? ?? ?? ?? }
                            $sequence_14 = { 8b 44 24 1c 8b 40 24 e8 ?? ?? ?? ?? 50 8b 44 24 20 8b 40 08 50 }
                                    $sequence_15 = { 83 c4 c0 8b f0 8d 3c 24 b9 10 00 00 00 }
                        $sequence_16 = { 52 50 8b 44 24 10 8b 40 3c 99 }
                            $sequence_17 = { 8b ea 8b d8 90 90 }
                        $sequence_18 = { 02 2e 31 05 00 00 00 00 0c 00 00 00 94 }
                            $sequence_19 = { 68 00 20 00 00 8b 44 24 0c 8b 40 50 50 }
                        $sequence_20 = { 8b d8 33 c0 55 68 ?? ?? ?? ?? 64 ff 30 64 89 20 90 }
                                    $sequence_21 = { 51 b9 10 00 00 00 f3 a5 59 }
                        $sequence_22 = { 8b 44 24 18 8b 40 3c 99 03 04 24 13 54 24 04 }
                            $sequence_23 = { 8d 3c 24 b9 10 00 00 00 f3 a5 90 90 90 }
              
  condition:
    7 of them and filesize < 54214656
}

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

573219f9-30d1-4748-ac18-6d24a11bcd86

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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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