Backdoor_Linux_Mirai_E_xp

YARA detection rule by roadwy

Backdoor:Linux/Mirai.E!xp,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 06 00 00

rule Backdoor_Linux_Mirai_E_xp{
	meta:
		description = "Backdoor:Linux/Mirai.E!xp,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 06 00 00 "
		
	strings :
		$a_00_0 = {53 65 6c 66 20 52 65 70 20 46 75 63 6b 69 6e 67 20 4e 65 54 69 53 20 61 6e 64 20 54 68 69 73 69 74 79 20 30 6e 20 55 72 20 46 75 43 6b 49 6e 47 20 46 6f 52 65 48 65 41 64 20 57 65 20 42 69 47 20 4c 33 33 54 20 48 61 78 45 72 53 } 		$a_00_1 = {42 41 4e 4b 54 59 20 44 44 4f 53 20 46 4f 52 20 39 31 } 		$a_00_2 = {2f 78 33 38 2f 78 46 4a 2f 78 39 33 2f 78 49 44 2f 78 39 41 2f 78 33 38 2f 78 46 4a 2f 78 39 33 2f 78 49 44 2f 78 39 41 2f } 		$a_00_3 = {73 75 63 6b 6d 61 64 69 63 6b } 		$a_00_4 = {63 6f 6e 73 69 64 65 72 74 6f 67 6f 6f 66 66 6c 69 6e 65 74 79 76 6d } 		$a_00_5 = {6e 70 78 58 6f 75 64 69 66 46 65 45 67 47 61 41 43 53 63 73 } 	condition:
		((#a_00_0  & 1)*2+(#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) >=3
 
}

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

620bdf3b-368b-4b4c-a2f1-a0283f41b345

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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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