win_boryptgrab_auto

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

Detects win.boryptgrab.

rule win_boryptgrab_auto {

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

    


    strings:
        $sequence_0 = { 90 488d8df8010000 e8???????? 90 488d8d50030000 e8???????? 90 }
                                                                                                
        $sequence_1 = { eb0a b905000000 cd29 488bc8 e8???????? 48895c2478 4c896d80 }
                                                                                                
        $sequence_2 = { e8???????? 48897b78 e9???????? 4863c5 486bf038 8b4320 89443e18 }
                                                                                                
        $sequence_3 = { eb67 408ab598000000 41bb01000000 453bd1 7d10 488b442468 4963ca }
                                                                                                
        $sequence_4 = { ba80000000 488bce e8???????? 41807f1900 74bc 498b0e ba80000000 }
                                                                                                
        $sequence_5 = { e8???????? 488b4b18 488bd3 e8???????? 488bce e8???????? 8bc7 }
                                                                                                
        $sequence_6 = { 90 488d4d48 e8???????? 90 488d4de8 e8???????? 90 }
                                                                                                
        $sequence_7 = { e8???????? 8b7c2444 41b903000000 448b442468 488bcd 897c2420 418d515e }
                                                                                                
        $sequence_8 = { 755e 41b848510000 498bd5 488d0d5b2d0e00 e8???????? 8a55e0 80fa03 }
                                                                                                
        $sequence_9 = { e8???????? c6474100 85f6 750a 4439ac24a0000000 7503 448bf6 }
                                                                                                
    condition:
        7 of them and filesize < 5648384
}

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

88a0253a-1acf-4915-8461-d1e01c4a39fd

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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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