Trojan_Win32_Horst_gen_B

YARA detection rule by roadwy

Trojan:Win32/Horst.gen!B,SIGNATURE_TYPE_PEHSTR_EXT,12 00 10 00 1c 00 00

rule Trojan_Win32_Horst_gen_B{
	meta:
		description = "Trojan:Win32/Horst.gen!B,SIGNATURE_TYPE_PEHSTR_EXT,12 00 10 00 1c 00 00 "
		
	strings :
		$a_01_0 = {6e 65 77 73 2e 6d 65 64 62 6f 64 2e 63 6f 6d 00 } 		$a_01_1 = {61 64 73 2e 7a 61 62 6c 65 6e 2e 63 6f 6d 00 } 		$a_01_2 = {48 6f 74 6d 61 69 6c 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_3 = {48 6f 74 6d 61 69 6c 52 65 67 69 73 74 72 61 72 2e 70 64 62 00 } 		$a_01_4 = {48 6f 74 6d 61 69 6c 52 65 67 69 73 74 72 61 72 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_5 = {48 6f 74 6d 61 69 6c 52 65 67 69 73 74 72 61 72 41 6e 6f 74 68 65 72 2e 70 64 62 00 } 		$a_01_6 = {59 61 68 6f 6f 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_7 = {41 4f 4c 52 65 67 65 72 2e 70 64 62 00 } 		$a_01_8 = {41 4f 4c 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_9 = {47 6d 61 69 6c 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_10 = {47 6d 61 69 6c 52 65 67 69 73 74 72 61 72 2e 70 64 62 00 } 		$a_01_11 = {47 6d 61 69 6c 52 65 67 69 73 74 72 61 72 4d 61 69 6c 65 72 2e 70 64 62 00 } 		$a_01_12 = {57 61 72 6e 6f 6e 42 61 64 43 65 72 74 52 65 63 76 69 6e 67 00 } 		$a_01_13 = {69 6e 6e 65 72 5f 78 6d 6c 00 00 00 74 61 67 5f 6e 61 6d 65 } 		$a_01_14 = {3c 2f 53 55 42 4a 3e 00 } 		$a_01_15 = {7b 25 4c 49 4e 4b 7d 00 } 		$a_00_16 = {52 65 61 63 74 69 76 61 74 65 41 63 6f 75 6e 74 20 65 72 72 6f 72 00 } 		$a_00_17 = {4d 65 73 73 61 67 65 20 53 65 6e 74 00 } 		$a_01_18 = {47 65 74 43 61 70 74 63 68 61 53 74 72 69 6e 67 46 72 6f 6d 52 65 73 70 6f 6e 73 65 } 		$a_01_19 = {47 65 74 43 61 70 74 63 68 61 53 74 72 69 6e 67 } 		$a_01_20 = {47 65 74 43 61 70 74 63 68 61 43 6f 64 65 } 		$a_01_21 = {53 65 74 43 61 70 74 63 68 61 43 6f 64 65 41 6e 64 53 75 62 6d 69 74 } 		$a_01_22 = {43 61 6e 27 74 20 61 73 6b 20 70 69 63 74 75 72 65 00 } 		$a_01_23 = {41 6c 6c 20 53 65 6e 74 2e } 		$a_01_24 = {71 75 65 73 74 61 6e 73 77 65 72 00 } 		$a_01_25 = {43 52 65 67 69 73 74 72 61 72 56 69 65 77 00 } 		$a_01_26 = {6d 61 69 6c 73 00 } 		$a_01_27 = {61 63 63 6f 75 6e 74 73 00 } 	condition:
		((#a_01_0  & 1)*10+(#a_01_1  & 1)*5+(#a_01_2  & 1)*5+(#a_01_3  & 1)*5+(#a_01_4  & 1)*5+(#a_01_5  & 1)*5+(#a_01_6  & 1)*5+(#a_01_7  & 1)*5+(#a_01_8  & 1)*5+(#a_01_9  & 1)*5+(#a_01_10  & 1)*5+(#a_01_11  & 1)*5+(#a_01_12  & 1)*3+(#a_01_13  & 1)*2+(#a_01_14  & 1)*2+(#a_01_15  & 1)*2+(#a_00_16  & 1)*2+(#a_00_17  & 1)*2+(#a_01_18  & 1)*2+(#a_01_19  & 1)*2+(#a_01_20  & 1)*2+(#a_01_21  & 1)*2+(#a_01_22  & 1)*2+(#a_01_23  & 1)*2+(#a_01_24  & 1)*2+(#a_01_25  & 1)*2+(#a_01_26  & 1)*1+(#a_01_27  & 1)*1) >=16
 
}

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

10486b5f-df71-4129-b783-e7316ef982a5

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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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