TrojanDownloader_O97M_Malgent_AJK_MSR

YARA detection rule by roadwy

TrojanDownloader:O97M/Malgent.AJK!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,0f 00 0f 00 03 00 00

rule TrojanDownloader_O97M_Malgent_AJK_MSR{
	meta:
		description = "TrojanDownloader:O97M/Malgent.AJK!MSR,SIGNATURE_TYPE_MACROHSTR_EXT,0f 00 0f 00 03 00 00 "
		
	strings :
		$a_00_0 = {43 61 6c 6c 20 74 72 65 6e 65 73 28 22 68 74 74 70 3a 2f 2f 6b 75 7a 6f 76 2d 72 65 6d 6f 6e 74 2e 63 6f 6d 2f 77 70 2d 61 64 6d 69 6e 2f 6a 73 2f 77 69 6e 2e 65 78 65 22 2c } 		$a_00_1 = {45 6e 76 69 72 6f 6e 28 22 41 70 70 44 61 74 61 22 29 20 26 20 22 5c 44 73 2e 65 78 65 22 29 } 		$a_00_2 = {45 6e 76 69 72 6f 6e 28 22 55 73 65 72 70 72 6f 66 69 6c 65 22 29 20 26 20 22 5c 4d 65 6e fa 20 49 6e 69 63 69 6f 5c 50 72 6f 67 72 61 6d 61 73 5c 49 6e 69 63 69 6f 5c 44 73 2e 65 78 65 22 29 } 	condition:
		((#a_00_0  & 1)*5+(#a_00_1  & 1)*5+(#a_00_2  & 1)*5) >=15
 
}

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

78771cc6-eb78-45ae-b5ad-e4071a78ff95

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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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