Backdoor_Linux_Gafgyt_BN_MTB

YARA detection rule by roadwy

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

rule Backdoor_Linux_Gafgyt_BN_MTB{
	meta:
		description = "Backdoor:Linux/Gafgyt.BN!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {2f 62 69 6e 2f 62 75 73 79 62 6f 78 20 63 68 6d 6f 64 20 37 37 37 20 2f 74 6d 70 2f 2e 61 6d 6b } 		$a_01_1 = {2f 76 61 72 2f 53 6f 66 69 61 } 		$a_01_2 = {74 6d 70 2f 2e 61 6d 6b 20 2d 72 20 2f 68 75 61 77 65 69 } 		$a_01_3 = {3c 4e 65 77 44 6f 77 6e 6c 6f 61 64 55 52 4c 3e 24 28 65 63 68 6f 20 48 55 41 57 45 49 55 50 4e 50 29 3c 2f 4e 65 77 44 6f 77 6e 6c 6f 61 64 55 52 4c 3e } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

d0ddbfdc-3171-4818-976d-0f5722c0ff4f

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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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