TrojanDownloader_Win32_Renos_ES_2

YARA detection rule by roadwy

TrojanDownloader:Win32/Renos.ES,SIGNATURE_TYPE_PEHSTR,0a 00 0a 00 10 00 00

rule TrojanDownloader_Win32_Renos_ES_2{
	meta:
		description = "TrojanDownloader:Win32/Renos.ES,SIGNATURE_TYPE_PEHSTR,0a 00 0a 00 10 00 00 "
		
	strings :
		$a_01_0 = {53 4f 46 54 57 41 52 45 5c 57 69 6e 41 6e 74 69 56 69 72 75 73 20 50 72 6f 20 32 30 30 37 } 		$a_01_1 = {53 6f 66 74 77 61 72 65 5c 57 69 6e 41 6e 74 69 53 70 79 77 61 72 65 20 32 30 30 37 } 		$a_01_2 = {53 6f 66 74 77 61 72 65 5c 45 72 72 6f 72 50 72 6f 74 65 63 74 6f 72 } 		$a_01_3 = {53 6f 66 74 77 61 72 65 5c 4d 61 6c 77 61 72 65 53 74 6f 70 70 65 72 } 		$a_01_4 = {68 74 74 70 3a 2f 2f 67 6f 2e 77 69 6e 61 6e 74 69 76 69 72 75 73 2e 63 6f 6d 2f } 		$a_01_5 = {68 74 74 70 3a 2f 2f 67 6f 2e 64 72 69 76 65 63 6c 65 61 6e 65 72 2e 63 6f 6d } 		$a_01_6 = {68 74 74 70 3a 2f 2f 67 6f 2e 73 79 73 74 65 6d 64 6f 63 74 6f 72 2e 63 6f 6d } 		$a_01_7 = {68 74 74 70 3a 2f 2f 67 6f 2e 65 72 72 6f 72 73 61 66 65 2e 63 6f 6d } 		$a_01_8 = {68 74 74 70 3a 2f 2f 67 6f 2e 65 72 72 6f 72 70 72 6f 74 65 63 74 6f 72 2e 63 6f 6d } 		$a_01_9 = {57 61 72 6e 69 6e 67 21 20 50 6f 74 65 6e 74 69 61 6c 20 53 70 79 77 61 72 65 20 4f 70 65 72 61 74 69 6f 6e 21 } 		$a_01_10 = {59 6f 75 72 20 63 6f 6d 70 75 74 65 72 20 69 73 20 6d 61 6b 69 6e 67 20 75 6e 61 75 74 68 6f 72 69 7a 65 64 20 63 6f 70 69 65 73 20 6f 66 20 79 6f 75 72 20 73 79 73 74 65 6d 20 61 6e 64 } 		$a_01_11 = {49 6e 74 65 72 6e 65 74 20 66 69 6c 65 73 2e 20 52 75 6e 20 66 75 6c 6c 20 73 63 61 6e 20 6e 6f 77 20 74 6f 20 70 65 72 76 65 6e 74 20 61 6e 79 20 75 6e 61 74 68 6f 72 69 73 65 64 20 61 63 63 65 73 73 } 		$a_01_12 = {74 6f 20 79 6f 75 72 20 66 69 6c 65 73 21 20 43 6c 69 63 6b 20 68 65 72 65 20 74 6f 20 64 6f 77 6e 6c 6f 61 64 20 73 70 79 77 61 72 65 20 72 65 6d 6f 76 65 72 20 2e 2e 2e } 		$a_01_13 = {57 69 6e 64 6f 77 73 20 53 65 63 75 72 69 74 79 20 41 6c 65 72 74 } 		$a_01_14 = {25 77 69 6e 64 69 72 25 5c 73 79 73 74 65 6d 33 32 5c 77 69 6e 61 76 2e 65 78 65 } 		$a_01_15 = {7b 41 42 43 44 45 43 46 30 2d 34 42 31 35 2d 31 31 44 31 2d 41 42 45 44 2d 37 30 39 35 34 39 43 31 30 30 30 30 7d } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_01_13  & 1)*1+(#a_01_14  & 1)*1+(#a_01_15  & 1)*1) >=10
 
}

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

7930ba7c-43c4-4a0b-a0f7-3f4c5aa09025

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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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