Backdoor_Linux_Gafgyt_AB_xp

YARA detection rule by roadwy

Backdoor:Linux/Gafgyt.AB!xp,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 04 00 00

rule Backdoor_Linux_Gafgyt_AB_xp{
	meta:
		description = "Backdoor:Linux/Gafgyt.AB!xp,SIGNATURE_TYPE_ELFHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_01_0 = {4b 54 40 24 53 49 54 40 24 53 4c 54 40 24 53 4c 54 40 24 53 41 54 40 24 53 54 54 40 24 53 54 54 40 24 53 4b } 		$a_01_1 = {4c 54 40 24 53 4f 54 40 24 53 4c 54 40 24 53 4e 54 40 24 53 4f 54 40 24 53 47 54 40 24 53 54 54 40 24 53 46 54 40 24 53 4f } 		$a_01_2 = {2f 54 40 24 53 62 54 40 24 53 69 54 40 24 53 6e 54 40 24 53 2f 54 40 24 53 62 54 40 24 53 75 54 40 24 53 73 54 40 24 53 79 54 40 24 53 62 54 40 24 53 6f 54 40 24 53 78 54 40 24 53 } 		$a_01_3 = {55 54 40 24 53 44 54 40 24 53 50 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

8765ce12-ea30-432c-9126-510c1d128aff

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion