TrojanDownloader_Linux_Simmerph_B

YARA detection rule by roadwy

TrojanDownloader:Linux/Simmerph.B,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00

rule TrojanDownloader_Linux_Simmerph_B{
	meta:
		description = "TrojanDownloader:Linux/Simmerph.B,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_01_0 = {37 34 36 38 37 30 37 34 32 46 33 41 37 33 32 46 36 44 36 39 36 43 37 30 37 32 36 35 36 46 36 34 37 34 36 39 37 34 32 45 32 46 36 42 36 46 36 38 36 35 36 44 36 44 32 46 36 32 37 39 37 33 36 35 36 33 37 34 37 33 36 44 37 30 32 46 36 45 36 46 36 34 36 35 36 43 36 35 36 35 32 45 36 35 37 38 } 		$a_01_1 = {4f 20 3d 20 41 72 72 61 79 28 22 61 74 61 44 70 70 41 22 2c 20 22 50 4d 45 54 22 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1) >=2
 
}

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

179d37ee-09d8-4290-83e9-72c123936d40

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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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