win_edr_freeze_auto

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

Detects win.edr_freeze.

rule win_edr_freeze_auto {

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

    


    strings:
        $sequence_0 = { 4c8bf9 e8???????? 4c8be8 488d4dcf e8???????? 0f1000 0f1145ff }
                                                                                                
        $sequence_1 = { 8d4805 e8???????? 488b05???????? 4885c0 751d 4c8d0d2a810100 4c8d051b810100 }
                                                                                                
        $sequence_2 = { 66c1e002 8d0c10 6603c9 66442bc1 664183c030 66458902 448bc2 }
                                                                                                
        $sequence_3 = { 415c 5f 5e c3 f6c204 7409 488d1d43900200 }
                                                                                                
        $sequence_4 = { 4c897daf c645b700 4c897dbf c645c700 4c897dcf 6644897dd7 }
                                                                                    
        $sequence_5 = { 8b4c2434 4c8d05102afdff b8cdcccccc f7e1 c1ea03 }
                                                                        
        $sequence_6 = { 488b4c3148 488b01 4d8bc7 498bd5 ff5048 493bc7 7410 }
                                                                                                
        $sequence_7 = { 4903f5 458be6 4c8b6dc7 e9???????? 4c8d1ddda5fdff 4f8b84eb20ab0400 }
                                                                                    
        $sequence_8 = { 488d0df9820200 e8???????? 90 e8???????? cc e8???????? cc }
                                                                                                
        $sequence_9 = { 4d8be9 4c8907 48890e 488b17 493bd1 0f84aa000000 483b8c24a0000000 }
                                                                                                
    condition:
        7 of them and filesize < 661504
}

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

5d58e3e1-4087-4cb9-89a7-0b8b10115403

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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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