Backdoor_Linux_Flosax_A

YARA detection rule by roadwy

Backdoor:Linux/Flosax.A,SIGNATURE_TYPE_MACHOHSTR_EXT,05 00 04 00 05 00 00

rule Backdoor_Linux_Flosax_A{
	meta:
		description = "Backdoor:Linux/Flosax.A,SIGNATURE_TYPE_MACHOHSTR_EXT,05 00 04 00 05 00 00 "
		
	strings :
		$a_01_0 = {63 6f 6d 2e 61 70 70 6c 65 2e 6d 64 77 6f 72 6b 65 72 5f 73 65 72 76 65 72 } 		$a_01_1 = {7b 5f 78 70 63 5f 63 6f 6e 6e 65 63 74 69 6f 6e 5f 73 3d 7d } 		$a_01_2 = {72 65 61 64 4d 65 6d 6f 72 79 42 79 58 50 43 46 72 6f 6d 43 6f 6d 70 6f 6e 65 6e 74 3a 66 6f 72 41 67 65 6e 74 3a 77 69 74 68 43 6f 6d 6d 61 6e 64 54 79 70 65 3a } 		$a_01_3 = {78 70 63 5f 63 6f 6e 6e 65 63 74 69 6f 6e 5f 73 65 6e 64 5f 6d 65 73 73 61 67 65 5f 77 69 74 68 5f 72 65 70 6c 79 5f 73 79 6e 63 } 		$a_01_4 = {6d 58 70 63 43 6f 6e } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=4
 
}

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

d88ac89f-9738-4d1b-ba09-29bed0d6b50f

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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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