Backdoor_Linux_Nixgi_A_xp

YARA detection rule by roadwy

Backdoor:Linux/Nixgi.A!xp,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00

rule Backdoor_Linux_Nixgi_A_xp{
	meta:
		description = "Backdoor:Linux/Nixgi.A!xp,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {2f 74 6d 70 2f 78 69 6e 67 79 69 5f 72 65 76 65 72 73 65 5f 70 69 64 } 		$a_01_1 = {2f 74 6d 70 2f 78 69 6e 67 79 69 5f 62 69 6e 64 73 68 65 6c 6c 5f 70 69 64 } 		$a_01_2 = {2f 74 6d 70 2f 78 69 6e 67 79 69 5f 72 65 76 65 72 73 65 5f 70 6f 72 74 } 		$a_01_3 = {2f 74 6d 70 2f 78 69 6e 67 79 69 5f 62 69 6e 64 73 68 65 6c 6c 5f 70 6f 72 74 } 		$a_01_4 = {73 77 30 72 64 6d 34 6e } 	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 ]]

ccd9e885-0ed9-4101-a165-a8823ca51ab4

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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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