TrojanDownloader_O97M_Obfuse_KK_MTB_2

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.KK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 0c 00 00

rule TrojanDownloader_O97M_Obfuse_KK_MTB_2{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.KK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 0c 00 00 "
		
	strings :
		$a_03_0 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 6d 22 20 2b 20 22 67 6d 74 73 3a 57 69 6e 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_1 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 6d 67 6d 74 73 3a 57 69 6e 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_2 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 6d 67 6d 74 73 3a 22 20 2b 20 22 57 69 6e 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_3 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 6d 67 6d 74 73 3a 57 69 6e 22 20 2b 20 22 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_4 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 22 20 2b 20 22 6d 67 6d 74 73 3a 57 69 6e 22 20 2b 20 22 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_5 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 22 20 2b 20 22 6d 67 6d 74 22 20 2b 20 22 73 3a 57 69 6e 22 20 2b 20 22 33 32 5f 50 72 6f 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_6 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 77 69 6e 6d 67 6d 74 73 3a 22 20 2b 20 22 57 69 6e 33 32 5f 50 72 6f 22 20 2b 20 22 63 65 73 73 22 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_7 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 52 65 70 6c 61 63 65 28 22 77 20 20 20 20 69 20 20 20 20 20 6e 6d 20 20 20 20 67 6d 74 73 3a 57 69 6e 20 20 20 20 33 32 20 20 20 5f 50 72 20 20 20 20 6f 63 20 20 20 65 73 73 22 2c 20 22 20 22 2c 20 22 22 29 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_8 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 52 65 70 6c 61 63 65 28 22 77 69 6e 6d 20 20 20 20 67 6d 74 20 20 20 73 3a 57 69 20 20 20 20 6e 20 20 20 20 33 32 20 20 20 5f 50 72 20 20 20 20 6f 63 65 20 20 20 20 73 73 22 2c 20 22 20 22 2c 20 22 22 29 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_9 = {3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 52 65 70 6c 61 63 65 28 22 40 40 40 77 69 40 40 6e 6d 40 40 40 40 40 40 67 40 6d 74 40 40 40 40 40 73 3a 57 69 6e 40 40 40 40 33 32 5f 50 72 6f 63 40 40 40 40 40 65 73 40 40 40 40 73 22 2c 20 22 40 22 2c 20 22 22 29 29 2e 43 72 65 61 74 65 28 [0-38] 2c } 		$a_03_10 = {2b 20 54 68 69 73 44 6f 63 75 6d 65 6e 74 2e [0-09] 2e 43 61 70 74 69 6f 6e 20 2b 20 54 68 69 73 44 6f 63 75 6d 65 6e 74 } 		$a_01_11 = {53 68 6f 77 57 69 6e 64 6f 77 21 20 5f } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1+(#a_03_5  & 1)*1+(#a_03_6  & 1)*1+(#a_03_7  & 1)*1+(#a_03_8  & 1)*1+(#a_03_9  & 1)*1+(#a_03_10  & 1)*1+(#a_01_11  & 1)*1) >=3
 
}

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

e3fc3522-9058-4883-a2f0-7f1e8d86bcec

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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 ]]

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Format & documentation suggestions

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[[ 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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