Backdoor_Linux_Mirai_F_MTB

YARA detection rule by roadwy

Backdoor:Linux/Mirai.F!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00

rule Backdoor_Linux_Mirai_F_MTB{
	meta:
		description = "Backdoor:Linux/Mirai.F!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00 "
		
	strings :
		$a_00_0 = {77 67 65 74 20 2d 4f 20 2d 3e 20 77 77 77 77 3b 20 73 68 20 77 77 77 77 } 		$a_00_1 = {73 68 65 6c 6c 3a 63 64 20 2f 64 61 74 61 2f 6c 6f 63 61 6c 2f 74 6d 70 3b 20 62 75 73 79 62 6f 78 } 		$a_00_2 = {47 45 54 20 2f 63 67 69 2d 62 69 6e 2f 6b 65 72 62 79 6e 65 74 3f 53 65 63 74 69 6f 6e 3d 4e 6f 41 75 74 68 52 45 51 26 41 63 74 69 6f 6e 3d 78 35 30 39 4c 69 73 74 26 74 79 70 65 3d 2a 25 32 32 3b 63 64 25 32 30 25 32 46 74 6d 70 3b 63 75 72 6c 25 32 30 2d 4f 25 32 30 68 74 74 70 25 33 41 25 32 46 25 32 46 35 2e 32 30 36 2e 32 32 37 2e 32 32 38 25 32 46 7a 65 72 6f 3b 73 68 25 32 30 7a 65 72 6f 3b 25 32 32 20 48 54 54 50 2f 31 2e 30 0d 0a 0d 0a 00 17 00 } 		$a_00_3 = {47 45 54 20 2f 73 68 65 6c 6c 3f 63 64 25 32 30 2f 74 6d 70 3b 77 67 65 74 25 32 30 68 74 74 70 25 33 41 25 32 46 25 32 46 35 2e 32 30 36 2e 32 32 37 2e 32 32 38 25 32 46 6a 61 77 3b 73 68 25 32 30 6a 61 77 3b 20 48 54 54 50 2f 31 2e 30 0d 0a 0d 0a 00 } 	condition:
		((#a_00_0  & 1)*2+(#a_00_1  & 1)*2+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1) >=5
 
}

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

1469765e-f2d5-4393-9f37-1367a97b5ac9

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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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