Ransom_Linux_RansomESX_A

YARA detection rule by roadwy

Ransom:Linux/RansomESX.A,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 04 00 00

rule Ransom_Linux_RansomESX_A{
	meta:
		description = "Ransom:Linux/RansomESX.A,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_00_0 = {65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6b 69 6c 6c 20 2d 74 3d 73 6f 66 74 20 2d 77 3d 25 64 } 		$a_00_1 = {65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6b 69 6c 6c 20 2d 74 3d 66 6f 72 63 65 20 2d 77 3d 25 64 } 		$a_00_2 = {65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6b 69 6c 6c 20 2d 74 3d 68 61 72 64 20 2d 77 3d 25 64 } 		$a_00_3 = {65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6c 69 73 74 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1) >=4
 
}

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

ce4f0df3-1084-4ad1-a252-d406dd77ddda

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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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