Ransom_Linux_Babuk_K_MTB

YARA detection rule by roadwy

Ransom:Linux/Babuk.K!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00

rule Ransom_Linux_Babuk_K_MTB{
	meta:
		description = "Ransom:Linux/Babuk.K!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {66 6f 72 20 69 20 69 6e 20 24 28 65 73 78 63 6c 69 20 76 6d 20 70 72 6f 63 65 73 73 20 6c 69 73 74 } 		$a_01_1 = {67 72 65 70 20 2d 45 6f 20 27 5b 30 2d 39 5d 7b 31 2c 38 7d 27 29 3b 20 64 6f 20 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 24 69 3b 20 64 6f 6e 65 } 		$a_01_2 = {66 6f 72 20 69 20 69 6e 20 24 28 76 69 6d 2d 63 6d 64 20 76 6d 73 76 63 2f 67 65 74 61 6c 6c 76 6d 73 } 		$a_01_3 = {67 72 65 70 20 2d 45 6f 20 27 5b 30 2d 39 5d 7b 31 2c 38 7d 27 29 3b 20 64 6f 20 76 69 6d 2d 63 6d 64 20 76 6d 73 76 63 2f 73 6e 61 70 73 68 6f 74 2e 72 65 6d 6f 76 65 61 6c 6c 20 24 69 3b 20 64 6f 6e 65 } 		$a_01_4 = {5d 5d 3b 20 74 68 65 6e 20 76 69 6d 2d 63 6d 64 20 76 6d 73 76 63 2f 70 6f 77 65 72 2e 6f 66 66 20 24 69 3b 20 66 69 3b 20 64 6f 6e 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

97c37787-eb38-452c-a26f-54c03a49fe37

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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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