Backdoor_Linux_Gummo_A_xp

YARA detection rule by roadwy

Backdoor:Linux/Gummo.A!xp,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00

rule Backdoor_Linux_Gummo_A_xp{
	meta:
		description = "Backdoor:Linux/Gummo.A!xp,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 04 00 00 "
		
	strings :
		$a_01_0 = {67 75 6d 6d 6f 20 62 61 63 6b 64 6f 6f 72 } 		$a_01_1 = {57 65 6c 63 6f 6d 65 20 54 6f 20 47 75 6d 6d 6f 20 42 61 63 6b 64 6f 6f 72 20 53 65 72 76 65 72 } 		$a_01_2 = {72 65 77 74 } 		$a_01_3 = {77 69 70 65 6f 75 74 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=5
 
}

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

77797b06-1986-41fc-8777-bd843c2c0dfe

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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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