Trojan_Linux_MsfShellBin_B

YARA detection rule by roadwy

Trojan:Linux/MsfShellBin.B,SIGNATURE_TYPE_ELFHSTR_EXT,01 00 01 00 03 00 00

rule Trojan_Linux_MsfShellBin_B{
	meta:
		description = "Trojan:Linux/MsfShellBin.B,SIGNATURE_TYPE_ELFHSTR_EXT,01 00 01 00 03 00 00 "
		
	strings :
		$a_01_0 = {68 6e 2f 73 68 68 2f 2f 62 69 89 e3 52 53 89 e1 b0 0b cd 80 } 		$a_01_1 = {68 2f 2f 73 68 68 2f 62 69 6e 89 e3 50 53 89 e1 b0 0b cd 80 } 		$a_03_2 = {6a 66 58 cd 80 d1 e3 b0 66 cd 80 57 43 b0 66 89 51 ?? cd 80 93 b6 0c b0 03 cd 80 87 df 5b b0 06 cd 80 ff e1 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1) >=1
 
}

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

6f7cc627-de46-4e2d-a92b-a19d582838d2

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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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