Trojan_Win64_Oyster_CQ_MTB

YARA detection rule by roadwy

Trojan:Win64/Oyster.CQ!MTB,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 04 00 00

rule Trojan_Win64_Oyster_CQ_MTB{
	meta:
		description = "Trojan:Win64/Oyster.CQ!MTB,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 04 00 00 "
		
	strings :
		$a_03_0 = {4b 45 52 4e c7 45 ?? 45 4c 33 32 c7 45 ?? 2e 44 4c 4c } 		$a_03_1 = {4c 69 62 72 c7 45 ?? 61 72 79 41 } 		$a_01_2 = {47 65 74 50 } 		$a_03_3 = {72 6f 63 41 c7 45 ?? 64 64 72 65 66 c7 45 } 	condition:
		((#a_03_0  & 1)*2+(#a_03_1  & 1)*2+(#a_01_2  & 1)*2+(#a_03_3  & 1)*2) >=8
 
}

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

8e1f53e9-011c-4190-b852-6285daa8bddc

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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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