Backdoor_Linux_Gafgyt_A_MTB

YARA detection rule by roadwy

Backdoor:Linux/Gafgyt.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 07 00 00

rule Backdoor_Linux_Gafgyt_A_MTB{
	meta:
		description = "Backdoor:Linux/Gafgyt.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 07 00 00 "
		
	strings :
		$a_00_0 = {2f 78 35 34 2f 78 35 33 2f 78 36 66 2f 78 37 35 2f 78 37 32 2f 78 36 33 2f 78 36 35 2f 78 32 30 2f 78 34 35 2f 78 36 65 2f 78 36 37 2f 78 36 39 2f 78 36 65 2f 78 36 35 2f 78 32 30 2f 78 35 31 2f 78 37 35 2f 78 36 35 2f 78 37 32 2f 78 37 39 } 		$a_00_1 = {4b 49 4c 4c 41 4c 4c } 		$a_00_2 = {62 6f 74 6e 61 6d 65 3a } 		$a_00_3 = {64 61 79 7a 64 64 6f 73 2e 63 6f } 		$a_00_4 = {76 73 65 61 74 74 61 63 6b } 		$a_00_5 = {73 74 64 68 65 78 66 6c 6f 6f 64 } 		$a_00_6 = {6c 6f 6c 6f 6c 6f 6c 6f 6c 6f 6c } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*2+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1) >=4
 
}

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

ba0a129b-95bd-4c1c-92ba-daec19044c66

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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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