elf_babuk_auto

YARA detection rule by Felix Bilstein - yara-signator at cocacoding dot com

Detects elf.babuk.

rule elf_babuk_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2024-10-31"
        version = "1"
        description = "Detects elf.babuk."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/elf.babuk"
        malpedia_rule_date = "20241030"
        malpedia_hash = "26e26953c49c8efafbf72a38076855d578e0a2e4"
        malpedia_version = "20241030"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { 658b0d00000000 8b89fcffffff 3b6108 7678 83ec14 8b442418 8b4c241c }
                                                                                                
        $sequence_1 = { 8b4c2438 890f 8b542444 89570c 8b1d???????? 85db }
                                                                                    
        $sequence_2 = { e8???????? 8b44240c 89442410 8b4c2418 890c24 e8???????? 8b442420 }
                                                                                                
        $sequence_3 = { e8???????? 8b442438 8b4804 90 8b492c 894c2420 e8???????? }
                                                                                                
        $sequence_4 = { c3 658b1d00000000 8b9bfcffffff 8b5b18 8b5b70 8403 890424 }
                                                                                                
        $sequence_5 = { 01d9 8b9c24a8010000 8bbc243c030000 01fb 11cd 8b8c248c010000 8b9c2464020000 }
                                                                                                
        $sequence_6 = { 8b44244c 8b4c2440 31d2 eb06 8d5101 90 89f1 }
                                                                                                
        $sequence_7 = { 895328 8b9424b0000000 8b8c2490000000 01ca 33562c 89532c }
                                                                                    
        $sequence_8 = { 8b5a40 39d8 0f85360f0000 89bc2408020000 81c4dc010000 c3 89c7 }
                                                                                                
        $sequence_9 = { 8b4c2424 01ca 89942444050000 8b8c2490050000 c1e11a 898c2420050000 }
                                                                                    
    condition:
        7 of them and filesize < 4186112
}

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

82eaed5b-fb14-4056-8e8b-31e3d34935db

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion