Backdoor_Linux_Mirai_B

YARA detection rule by roadwy

Backdoor:Linux/Mirai.B,SIGNATURE_TYPE_ELFHSTR_EXT,07 00 07 00 09 00 00

rule Backdoor_Linux_Mirai_B{
	meta:
		description = "Backdoor:Linux/Mirai.B,SIGNATURE_TYPE_ELFHSTR_EXT,07 00 07 00 09 00 00 "
		
	strings :
		$a_80_0 = {6e 6d 6e 6c 6d 65 76 64 6d } 		$a_80_1 = {58 4d 4e 4e 43 50 46 } 		$a_80_2 = {65 67 76 6e 6d 61 63 6e 6b 72 } 		$a_80_3 = {47 4c 43 40 4e 47 } 		$a_80_4 = {51 5b 51 56 47 4f } 		$a_80_5 = {4c 41 4d 50 50 47 41 56 } 		$a_80_6 = {41 4a 57 4c 49 47 46 } 		$a_01_7 = {47 45 54 20 2f 73 68 65 6c 6c 3f 63 61 74 25 25 32 30 2f 65 74 63 2f 70 61 73 73 77 64 } 		$a_01_8 = {47 45 54 20 2f 73 79 73 74 65 6d 2e 69 6e 69 3f 6c 6f 67 69 6e 75 73 65 26 6c 6f 67 69 6e 70 61 73 } 	condition:
		((#a_80_0  & 1)*1+(#a_80_1  & 1)*1+(#a_80_2  & 1)*1+(#a_80_3  & 1)*1+(#a_80_4  & 1)*1+(#a_80_5  & 1)*1+(#a_80_6  & 1)*1+(#a_01_7  & 1)*-1+(#a_01_8  & 1)*-1) >=7
 
}

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

2e6cba69-7d9e-44eb-a07b-0c23a236411b

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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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