Ransom_Linux_Rustomware_A_MTB

YARA detection rule by roadwy

Ransom:Linux/Rustomware.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00

rule Ransom_Linux_Rustomware_A_MTB{
	meta:
		description = "Ransom:Linux/Rustomware.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00 "
		
	strings :
		$a_01_0 = {52 45 41 44 4d 45 5f 52 75 73 74 73 6f 6d 77 61 72 65 } 		$a_01_1 = {72 75 73 74 73 6f 6d 77 61 72 65 20 3c 65 6e 63 72 79 70 74 } 		$a_01_2 = {44 72 6f 70 70 65 64 20 72 61 6e 73 6f 6d 20 6d 65 73 73 61 67 65 } 		$a_01_3 = {75 6e 77 69 6e 64 5f 67 65 74 74 65 78 74 72 65 6c 62 61 73 65 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=5
 
}

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

fd45ed66-c469-4a42-b042-96d2c051098f

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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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