win_blacknix_rat_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_blacknix_rat_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.blacknix_rat"
    malpedia_rule_date = "20201014"
    malpedia_hash      = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
    malpedia_version   = "20201014"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0 = { bb ?? ?? ?? ?? 33 c0 55 68 ?? ?? ?? ?? 64 ff 30 64 89 20 b8 ?? ?? ?? ?? }
                                    $sequence_1 = { ff 4c 24 08 0f 85 22 ff ff ff 8b c6 e8 ?? ?? ?? ?? 8b 54 24 04 8b 08 ff 51 48 }
                                    $sequence_2 = { d9 e0 83 c4 fc d9 1c 24 9b 8d 85 78 ff ff ff e8 ?? ?? ?? ?? 8b 85 78 ff ff ff }
                                    $sequence_3 = { ff 75 14 ff 75 10 8d 45 ec e8 ?? ?? ?? ?? 8d 55 ec 8d 4d f7 8b c3 }
                                    $sequence_4 = { be ?? ?? ?? ?? 8d 7d bc b9 09 00 00 00 f3 a5 8d 55 bc 8b 45 fc 8b 80 14 02 00 00 }
                                    $sequence_5 = { b9 01 00 00 00 8b 15 ?? ?? ?? ?? e8 ?? ?? ?? ?? 83 c4 04 8d 55 c8 8b c3 e8 ?? ?? ?? ?? }
                                    $sequence_6 = { e8 ?? ?? ?? ?? 8b f0 89 b3 d8 02 00 00 8b c6 8b 15 ?? ?? ?? ?? e8 ?? ?? ?? ?? 89 58 0c }
                                    $sequence_7 = { d9 86 90 01 00 00 d8 25 ?? ?? ?? ?? e8 ?? ?? ?? ?? 8b c8 b2 01 a1 ?? ?? ?? ?? e8 ?? ?? ?? ?? }
                                    $sequence_8 = { e8 ?? ?? ?? ?? 8a 0d ?? ?? ?? ?? 5a 8b 18 ff 53 60 8b 04 24 8b 80 70 02 00 00 }
                                    $sequence_9 = { c7 80 90 02 00 00 c4 99 4a 00 8b ce b2 01 a1 ?? ?? ?? ?? e8 ?? ?? ?? ?? 8b d8 89 9e a8 02 00 00 }
                
  condition:
    7 of them and filesize < 3252224
}

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

be9179b7-f36e-4dea-8d13-17c7f39f89bd

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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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