Backdoor_Linux_Mirai_CB_MTB

YARA detection rule by roadwy

Backdoor:Linux/Mirai.CB!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 0a 00 00

rule Backdoor_Linux_Mirai_CB_MTB{
	meta:
		description = "Backdoor:Linux/Mirai.CB!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 0a 00 00 "
		
	strings :
		$a_00_0 = {68 61 63 6b 6d 79 } 		$a_00_1 = {6d 69 72 61 69 2e 6c 69 6e 75 78 } 		$a_00_2 = {62 75 73 79 62 6f 74 6e 65 74 } 		$a_00_3 = {47 41 4c 41 58 59 20 5d 20 52 65 6d 6f 76 69 6e 67 20 54 65 6d 70 20 44 69 72 65 63 74 6f 72 79 73 2e 20 7c 7c 20 49 50 3a 20 25 73 20 7c 7c 20 50 6f 72 74 3a 20 32 33 20 7c 7c 20 55 73 65 72 6e 61 6d 65 3a 20 25 73 20 7c 7c 20 50 61 73 73 77 6f 72 64 3a 20 25 73 } 		$a_00_4 = {70 6b 69 6c 6c 20 2d 39 20 25 73 3b 6b 69 6c 6c 61 6c 6c 20 2d 39 20 25 73 3b } 		$a_00_5 = {73 65 72 76 69 63 65 20 69 70 74 61 62 6c 65 73 20 73 74 6f 70 } 		$a_00_6 = {73 65 72 76 69 63 65 20 66 69 72 65 77 61 6c 6c 64 20 73 74 6f 70 } 		$a_00_7 = {4d 69 72 61 69 53 63 61 6e 6e 65 72 } 		$a_00_8 = {54 65 6c 6e 65 74 53 63 61 6e 6e 65 72 } 		$a_00_9 = {4d 69 72 61 69 49 50 52 61 6e 67 65 73 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1+(#a_00_7  & 1)*1+(#a_00_8  & 1)*1+(#a_00_9  & 1)*1) >=5
 
}

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

90e6545e-8552-487e-b4f5-ddd6c0c09b0d

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion