Backdoor_Linux_HShell_A_MTB

YARA detection rule by roadwy

Backdoor:Linux/HShell.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,02 00 02 00 04 00 00

rule Backdoor_Linux_HShell_A_MTB{
	meta:
		description = "Backdoor:Linux/HShell.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,02 00 02 00 04 00 00 "
		
	strings :
		$a_00_0 = {2f 68 65 72 73 68 65 6c 6c 2f 73 68 65 6c 6c 2e 49 6e 6a 65 63 74 53 68 65 6c 6c 63 6f 64 65 } 		$a_00_1 = {6d 65 74 65 72 70 72 65 74 65 72 2e 52 65 76 65 72 73 65 48 74 74 70 } 		$a_00_2 = {68 65 72 73 68 65 6c 6c 2d 6d 61 73 74 65 72 2f 6d 65 74 65 72 70 72 65 74 65 72 2f 6d 65 74 65 72 70 72 65 74 65 72 2e 67 6f } 		$a_00_3 = {73 79 73 64 72 65 61 6d 2f 68 65 72 73 68 65 6c 6c 2f 73 68 65 6c 6c 2e 47 65 74 53 68 65 6c 6c } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1) >=2
 
}

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

d2abf8e3-2586-4296-9615-caf984df17de

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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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