Ransom_MSIL_Filecoder_DU_MTB

YARA detection rule by roadwy

Ransom:MSIL/Filecoder.DU!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00

rule Ransom_MSIL_Filecoder_DU_MTB{
	meta:
		description = "Ransom:MSIL/Filecoder.DU!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00 "
		
	strings :
		$a_81_0 = {42 54 43 20 41 64 64 72 65 73 73 20 3a } 		$a_81_1 = {4c 4f 43 4b 54 48 41 54 } 		$a_81_2 = {53 50 4c 49 54 54 54 54 } 		$a_81_3 = {73 74 75 62 41 45 53 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_4 = {53 45 4c 45 43 54 20 2a 20 46 52 4f 4d 20 41 6e 74 69 76 69 72 75 73 50 72 6f 64 75 63 74 } 		$a_81_5 = {2e 64 73 66 64 73 66 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1) >=5
 
}

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

39563479-b280-4821-9a26-cb1385f4041f

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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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