Trojan_O97M_SysinfoStealer_A_MSR

YARA detection rule by roadwy

Trojan:O97M/SysinfoStealer.A!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 03 00 03 00 00

rule Trojan_O97M_SysinfoStealer_A_MSR{
	meta:
		description = "Trojan:O97M/SysinfoStealer.A!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 03 00 03 00 00 "
		
	strings :
		$a_00_0 = {57 69 6e 48 74 74 70 52 65 71 2e 53 65 6e 64 } 		$a_00_1 = {77 69 6e 4d 67 6d 74 73 2e 45 78 65 63 51 75 65 72 79 28 42 61 73 65 36 34 44 65 63 6f 64 65 53 74 72 69 6e 67 } 		$a_00_2 = {42 61 73 65 36 34 45 6e 63 6f 64 65 53 74 72 69 6e 67 28 47 65 74 44 6f 63 4e 61 6d 65 20 26 20 22 7c 22 20 26 20 47 65 74 43 6f 6d 70 75 74 65 72 49 6e 66 6f 20 26 20 22 7c 22 20 26 20 47 65 74 4f 53 49 6e 66 6f 20 26 20 22 7c 22 20 26 20 47 65 74 41 56 20 26 20 22 7c 22 20 26 20 47 65 74 50 72 6f 63 29 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*2) >=3
 
}

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

440763d9-2d14-414f-a432-9a65cdc17f89

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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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