win_mongall_auto

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

Detects win.mongall.

rule win_mongall_auto {

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

    


    strings:
        $sequence_0 = { 50 ffd7 8bc3 8da5e0fdffff }
                                                            
        $sequence_1 = { ff15???????? 85c0 0f84b2000000 6a7f 8d857dffffff 6a00 }
                                                                                    
        $sequence_2 = { 8d4598 50 ff15???????? 2bf6 3935???????? 750b }
                                                                                    
        $sequence_3 = { 0fbe84c248e24000 c1f804 8985a4fdffff 83f807 0f87c8090000 ff2485b83f4000 33c0 }
                                                                                                
        $sequence_4 = { 6a00 56 e8???????? 8b8d6cf8ffff }
                                                            
        $sequence_5 = { 84d2 75f9 8dbdfcfdffff 2bc1 4f 8a4f01 47 }
                                                                                                
        $sequence_6 = { e8???????? 83c40c eb14 8d95f8fdffff 68???????? }
                                                                        
        $sequence_7 = { 57 6a00 50 8945f8 e8???????? 83c410 }
                                                                                    
        $sequence_8 = { 50 ffd6 eb06 8b35???????? 6a00 6880000000 }
                                                                                    
        $sequence_9 = { 8bf7 85ff 7e2a 6a30 }
                                                            
    condition:
        7 of them and filesize < 199680
}

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

3241d33c-5067-4760-a117-14975800ec7f

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