win_8t_dropper_auto

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

Detects win.8t_dropper.

rule win_8t_dropper_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.8t_dropper."
        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/win.8t_dropper"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { bf???????? 83c9ff f2ae f7d1 49 c6440c0c52 }
                                                                                    
        $sequence_1 = { f2ae f7d1 49 c6440c0c52 }
                                                            
        $sequence_2 = { 51 68???????? 6a02 50 8b442418 }
                                                                        
        $sequence_3 = { 33c0 8d7c240d c644240c00 f3ab 66ab aa bf???????? }
                                                                                                
        $sequence_4 = { f7d1 49 c6440c0c52 c6440c0d75 c6440c0e6e }
                                                                        
        $sequence_5 = { 50 ff15???????? 85c0 7559 8b4c2408 }
                                                                        
        $sequence_6 = { 741b 56 6800700000 6a01 }
                                                            
        $sequence_7 = { 51 ff15???????? 8d942410010000 6804010000 52 68???????? }
                                                                                    
        $sequence_8 = { 7559 8b4c2408 51 ff15???????? 8d942410010000 6804010000 }
                                                                                    
        $sequence_9 = { ff15???????? 8d942410010000 6804010000 52 }
                                                            
    condition:
        7 of them and filesize < 147456
}

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

47e2c985-d648-44e8-88a9-ad419eeebe8c

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