Backdoor_Linux_Gafgyt_cg_MTB

YARA detection rule by roadwy

Backdoor:Linux/Gafgyt.cg!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 04 00 00

rule Backdoor_Linux_Gafgyt_cg_MTB{
	meta:
		description = "Backdoor:Linux/Gafgyt.cg!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_00_0 = {3f 3f 68 3f 74 3f 74 3f 70 3f 3f 68 3f 65 3f 78 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 68 3f 65 3f 78 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 68 3f 65 3f 78 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f } 		$a_00_1 = {3f 3f 68 3f 74 3f 74 3f 70 3f 72 3f 61 3f 6e 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 72 3f 61 3f 6e 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 72 3f 61 3f 6e 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f 3f 3f 68 3f 74 3f 74 3f 70 3f 3f 66 3f 6c 3f 6f 3f 6f 3f 64 3f 3f } 		$a_00_2 = {76 73 65 61 74 74 61 63 6b } 		$a_00_3 = {53 65 6e 64 53 54 44 48 45 58 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1) >=3
 
}

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

981ce413-6846-4e75-b37c-af1f4e39f452

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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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