TrojanDropper_O97M_UpperCider_A_dha

YARA detection rule by roadwy

TrojanDropper:O97M/UpperCider.A!dha,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 0c 00 00

rule TrojanDropper_O97M_UpperCider_A_dha{
	meta:
		description = "TrojanDropper:O97M/UpperCider.A!dha,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 0c 00 00 "
		
	strings :
		$a_03_0 = {43 6f 6d 6d 61 6e 64 4d 6f 76 65 54 6f 20 3d 20 22 63 6d 64 2e 65 78 65 20 2f 63 20 63 6f 70 79 20 25 74 65 6d 70 25 5c 5c [0-10] 2a 20 22 20 26 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 22 2a 22 } 		$a_03_1 = {64 73 74 43 6f 70 79 54 6f [0-04] 20 3d 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 22 [0-14] 22 } 		$a_03_2 = {4f 62 6a 52 75 6e 20 43 6f 6d 6d 61 6e 64 4d 6f 76 65 54 6f 2c 20 64 73 74 43 6f 70 79 54 6f [0-04] 2c 20 64 73 74 43 6f 70 79 54 6f [0-04] 2c 20 64 73 74 43 6f 70 79 54 6f [0-04] 2c 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 } 		$a_03_3 = {53 75 62 20 4f 62 6a 52 75 6e 28 43 6f 6d 6d 61 6e 64 4d 6f 76 65 54 6f 20 41 73 20 53 74 72 69 6e 67 2c 20 43 6f 70 79 54 6f [0-04] 20 41 73 20 53 74 72 69 6e 67 2c 20 43 6f 70 79 54 6f [0-04] 20 41 73 20 53 74 72 69 6e 67 2c 20 43 6f 70 79 54 6f [0-04] 20 41 73 20 53 74 72 69 6e 67 2c 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 41 73 20 53 74 72 69 6e 67 29 } 		$a_01_4 = {63 65 72 6d 6f 76 65 43 6f 6d 61 6e 64 20 3d 20 22 63 6d 64 2e 65 78 65 20 2f 63 20 63 6f 70 79 20 25 77 69 6e 64 69 72 25 5c 5c 73 79 73 74 65 6d 33 32 5c 5c 63 65 72 74 75 74 69 6c 2e 65 78 65 20 } 		$a_03_5 = {63 65 72 74 75 74 69 6c 43 6f 6d 61 6e 64 20 3d 20 22 63 6d 64 2e 65 78 65 20 2f 63 20 [0-20] 20 2d 64 65 63 6f 64 65 20 22 } 		$a_01_6 = {6f 62 6a 77 73 2e 52 75 6e 20 43 6f 6d 6d 61 6e 64 4d 6f 76 65 54 6f 2c 20 30 2c 20 54 72 75 65 } 		$a_01_7 = {6f 62 6a 77 73 2e 52 75 6e 20 63 65 72 6d 6f 76 65 43 6f 6d 61 6e 64 2c 20 30 2c 20 54 72 75 65 } 		$a_03_8 = {6f 62 6a 77 73 2e 52 75 6e 20 63 65 72 74 75 74 69 6c 43 6f 6d 61 6e 64 20 26 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 [0-14] 20 26 20 43 6f 70 79 54 6f [0-04] 2c 20 30 2c 20 54 72 75 65 } 		$a_03_9 = {6f 62 6a 77 73 2e 52 75 6e 20 22 65 73 65 6e 74 75 74 6c 2e 65 78 65 20 2f 79 20 22 20 26 20 43 6f 70 79 54 6f [0-04] 20 26 20 22 20 2f 64 20 22 20 26 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 [0-14] 20 26 20 22 20 2f 6f 22 2c 20 30 2c 20 54 72 75 65 } 		$a_03_10 = {6f 62 6a 77 73 2e 52 75 6e 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 [0-30] 2c 20 30 2c 20 46 61 6c 73 65 } 		$a_03_11 = {6f 62 6a 77 73 2e 52 75 6e 20 22 63 6d 64 2e 65 78 65 20 2f 63 20 64 65 6c 20 2f 66 20 2f 73 20 2f 71 20 22 20 26 20 41 6c 6c 55 73 65 72 73 50 72 6f 66 69 6c 65 20 26 20 [0-10] 2c 20 30 2c 20 46 61 6c 73 65 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_01_4  & 1)*1+(#a_03_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_03_8  & 1)*1+(#a_03_9  & 1)*1+(#a_03_10  & 1)*1+(#a_03_11  & 1)*1) >=6
 
}

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

2cb0f9a7-37d7-4b8f-836c-96bddb22e3da

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion