Ransom_MSIL_Filecoder_FA_MTB

YARA detection rule by roadwy

Ransom:MSIL/Filecoder.FA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00

rule Ransom_MSIL_Filecoder_FA_MTB{
	meta:
		description = "Ransom:MSIL/Filecoder.FA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00 "
		
	strings :
		$a_81_0 = {2e 77 6e 63 72 79 } 		$a_81_1 = {2e 5a 49 45 42 46 5f 34 35 36 31 64 72 67 66 } 		$a_81_2 = {74 65 6d 70 31 30 2e 70 6e 67 } 		$a_81_3 = {42 36 35 34 31 32 36 35 31 32 33 2e 50 72 6f 70 65 72 74 69 65 73 2e 52 65 73 6f 75 72 63 65 73 } 		$a_81_4 = {42 36 35 34 31 32 36 35 31 32 33 2e 65 78 65 } 	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) >=4
 
}

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

3a868a54-ca4a-427f-867a-bd0d9c1c0e04

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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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