Ransom_MSIL_Joker_DC_MTB

YARA detection rule by roadwy

Ransom:MSIL/Joker.DC!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Ransom_MSIL_Joker_DC_MTB{
	meta:
		description = "Ransom:MSIL/Joker.DC!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {43 72 79 70 74 6f 4a 6f 6b 65 72 44 65 63 72 79 70 74 6f 72 } 		$a_81_1 = {40 70 72 6f 74 6f 6e 6d 61 69 6c 2e 63 6f 6d } 		$a_81_2 = {44 61 72 6b 20 4d 61 74 74 65 72 20 52 65 63 6f 76 65 72 79 20 49 6e 66 6f 72 6d 61 74 69 6f 6e 2e 74 78 74 } 		$a_81_3 = {6a 6f 6b 69 6e 67 77 69 74 68 79 6f 75 } 		$a_81_4 = {42 69 74 63 6f 69 6e 20 41 64 64 72 65 73 73 } 	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) >=5
 
}

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

8b46152b-fc80-4a82-94d2-c3ad1f6c751a

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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 ]]

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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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