Trojan_Linux_RShell_A_MTB

YARA detection rule by roadwy

Trojan:Linux/RShell.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_Linux_RShell_A_MTB{
	meta:
		description = "Trojan:Linux/RShell.A!MTB,SIGNATURE_TYPE_ELFHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {2f 72 65 76 73 68 65 6c 6c 2f 63 6c 69 65 6e 74 2f 68 6f 73 74 2e 67 6f } 		$a_01_1 = {2f 63 6c 69 65 6e 74 2e 28 2a 48 6f 73 74 29 2e 68 61 6e 64 6c 65 43 6f 6d 6d 61 6e 64 } 		$a_01_2 = {72 65 64 2e 74 65 61 6d 2f 67 6f 2d 72 65 64 2f 64 6e 73 } 		$a_01_3 = {70 72 6f 78 79 2e 73 65 72 76 65 46 6f 72 77 61 72 64 } 		$a_01_4 = {69 63 6d 70 74 75 6e 6e 65 6c 2e 6e 65 77 43 6c 69 65 6e 74 } 	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) >=5
 
}

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

d2210834-4292-4887-aa59-e2fbaf8e9f1d

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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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