Backdoor_Linux_Gafgyt_I_xp

YARA detection rule by roadwy

Backdoor:Linux/Gafgyt.I!xp,SIGNATURE_TYPE_ELFHSTR_EXT,02 00 02 00 05 00 00

rule Backdoor_Linux_Gafgyt_I_xp{
	meta:
		description = "Backdoor:Linux/Gafgyt.I!xp,SIGNATURE_TYPE_ELFHSTR_EXT,02 00 02 00 05 00 00 "
		
	strings :
		$a_02_0 = {2f 62 69 6e 2f 62 75 73 79 62 6f 78 20 77 67 65 74 20 2d 67 [0-30] 20 2d 6c 20 2f 74 6d 70 [0-10] 20 2d 72 20 2f [0-10] 44 65 66 61 75 6c 74 [0-10] 2e 6d 69 70 73 3b 20 2f 62 69 6e 2f 62 75 73 79 62 6f 78 20 63 68 6d 6f 64 20 37 37 37 20 2a 20 2f 74 6d 70 [0-10] 3b 20 2f 74 6d 70 [0-10] 20 68 75 61 77 65 69 2e 65 78 70 6c 6f 69 74 } 		$a_02_1 = {2f 73 68 65 6c 6c 3f 63 64 2b 2f 74 6d 70 3b 72 6d 2b 2d 72 66 2b 2a 3b 77 67 65 74 2b [0-30] 2f 6a 61 77 73 3b 73 68 2b 2f 74 6d 70 2f 6a 61 77 73 } 		$a_00_2 = {47 45 54 20 2f 73 68 65 6c 6c 3f 63 64 25 25 32 30 25 25 32 46 74 6d 70 25 25 33 42 72 6d 25 25 32 30 2d 72 66 25 25 32 30 25 25 32 41 25 25 33 42 77 67 65 74 25 25 32 30 68 74 74 70 25 25 33 41 25 25 32 46 25 25 32 46 25 73 25 25 32 46 61 72 6d 7a 2e 73 68 25 25 33 42 63 68 6d 6f 64 25 25 32 30 25 25 32 42 78 25 25 32 30 61 72 6d 7a 2e 73 68 25 25 33 42 25 25 32 30 73 68 25 25 32 30 61 72 6d 7a 2e 73 68 } 		$a_00_3 = {6f 55 7a 69 6c 53 7a 31 34 78 64 32 6d 30 4c 68 53 64 59 31 54 50 33 55 72 51 5a 4a 6e 74 68 4c 75 6d 45 55 53 67 4b 32 79 75 71 42 44 42 6c 63 53 67 33 57 67 67 55 65 66 45 6e 52 54 4b } 		$a_02_4 = {2e 6d 69 70 73 3b 20 2f 62 69 6e 2f 62 75 73 79 62 6f 78 20 63 68 6d 6f 64 20 2b 78 20 2f 74 6d 70 2f 2e [0-05] 3b 20 2f 74 6d 70 2f [0-05] 20 68 75 61 77 65 69 2e 6d 69 70 73 } 	condition:
		((#a_02_0  & 1)*2+(#a_02_1  & 1)*2+(#a_00_2  & 1)*2+(#a_00_3  & 1)*1+(#a_02_4  & 1)*1) >=2
 
}

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

94133867-0af8-4736-954b-ca9f6fb0cf54

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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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