Ransom_Linux_BlackCat_C_MTB

YARA detection rule by roadwy

Ransom:Linux/BlackCat.C!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 04 00 00

rule Ransom_Linux_BlackCat_C_MTB{
	meta:
		description = "Ransom:Linux/BlackCat.C!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {72 65 6e 61 6d 65 70 72 65 6c 6f 63 6b 6e 6f 74 65 } 		$a_01_1 = {6b 69 6c 6c 2d 76 6d 2d 69 6e 63 6c 75 64 65 6b 69 6c 6c 2d 76 6d 2d 65 78 63 6c 75 64 65 } 		$a_01_2 = {65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6b 69 6c 6c } 		$a_01_3 = {65 73 78 63 6c 69 20 2d 2d 66 6f 72 6d 61 74 74 65 72 3d 63 73 76 20 2d 2d 66 6f 72 6d 61 74 2d 70 61 72 61 6d 3d 66 69 65 6c 64 73 3d 3d } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

130c221c-f222-43ad-a44e-1a7feccba069

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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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