TrojanDropper_O97M_Obfuse_C_MSR

YARA detection rule by roadwy

TrojanDropper:O97M/Obfuse.C!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDropper_O97M_Obfuse_C_MSR{
	meta:
		description = "TrojanDropper:O97M/Obfuse.C!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_00_0 = {41 74 74 72 69 62 75 74 65 20 56 42 5f 4e 61 6d 65 20 3d 20 22 63 68 69 63 6b 65 6e 70 72 69 63 65 22 } 		$a_02_1 = {3d 20 42 65 6e 61 6a 2e 43 72 65 61 74 65 54 65 78 74 46 69 6c 65 28 22 63 3a 5c [0-02] 5c 6b 65 79 6c 6f 61 64 [0-10] 2e 63 6d 64 22 2c 20 54 72 75 65 29 } 		$a_00_2 = {73 74 61 72 74 20 43 3a 5c 31 5c 57 6f 6d 61 6e 4c 6f 76 65 2e 65 78 65 } 	condition:
		((#a_00_0  & 1)*1+(#a_02_1  & 1)*1+(#a_00_2  & 1)*1) >=3
 
}

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

542cdeed-1d5b-4f7b-b32f-6bafd5f03795

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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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