Ransom_MSIL_Ransim_MEL_MTB

YARA detection rule by roadwy

Ransom:MSIL/Ransim.MEL!MTB,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00

rule Ransom_MSIL_Ransim_MEL_MTB{
	meta:
		description = "Ransom:MSIL/Ransim.MEL!MTB,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_81_0 = {73 70 71 71 63 69 66 79 20 74 68 71 71 20 2d 71 71 78 74 72 61 63 74 } 		$a_81_1 = {50 43 4d 4e 43 69 35 54 57 55 35 50 55 46 4e 4a 55 77 30 4b 49 43 41 67 55 6d 56 73 5a 57 46 7a 5a 54 6f 67 51 6d 56 68 64 58 67 4e 43 69 41 67 49 46 4a 68 62 } 		$a_81_2 = {52 75 62 72 69 6b 52 61 6e 53 69 6d } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1) >=3
 
}

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

419e7738-5a99-4b4b-898a-a1a40a79393e

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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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