TrojanDropper_Win32_MessengerSkinner

YARA detection rule by roadwy

TrojanDropper:Win32/MessengerSkinner,SIGNATURE_TYPE_PEHSTR,23 00 23 00 09 00 00

rule TrojanDropper_Win32_MessengerSkinner{
	meta:
		description = "TrojanDropper:Win32/MessengerSkinner,SIGNATURE_TYPE_PEHSTR,23 00 23 00 09 00 00 "
		
	strings :
		$a_01_0 = {49 6e 74 65 72 6e 65 74 4f 70 65 6e 55 72 6c 41 } 		$a_01_1 = {48 74 74 70 4f 70 65 6e 52 65 71 75 65 73 74 41 } 		$a_01_2 = {43 72 65 61 74 65 4d 75 74 65 78 41 } 		$a_01_3 = {6d 65 73 73 65 6e 67 65 72 73 6b 69 6e 6e 65 72 2e 63 6f 6d } 		$a_01_4 = {53 6f 66 74 77 61 72 65 5c 4d 65 73 73 65 6e 67 65 72 53 6b 69 6e 6e 65 72 00 00 00 4d 65 73 73 65 6e 67 65 72 53 6b 69 6e 6e 65 72 } 		$a_01_5 = {76 65 72 73 69 6f 6e 00 75 70 64 61 74 65 00 00 6d 61 69 6e 41 70 70 00 6d 65 73 73 65 6e 67 65 72 73 6b 69 6e 6e 65 72 } 		$a_01_6 = {4d 65 73 73 65 6e 67 65 72 53 6b 69 6e 6e 65 72 20 63 6f 75 6c 64 20 6e 6f 74 20 73 74 61 72 74 } 		$a_01_7 = {55 73 65 72 64 61 74 61 5c 00 00 00 4d 65 73 73 65 6e 67 65 72 53 6b 69 6e 6e 65 72 5c } 		$a_01_8 = {49 6e 69 74 69 61 6c 69 7a 65 44 6c 6c 46 72 6f 6d 45 78 65 00 00 00 00 4d 65 73 73 65 6e 67 65 72 53 6b 69 6e 6e 65 72 44 6c 6c 2e 64 6c 6c } 	condition:
		((#a_01_0  & 1)*10+(#a_01_1  & 1)*10+(#a_01_2  & 1)*10+(#a_01_3  & 1)*2+(#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) >=35
 
}

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

692212a4-f811-4e19-988b-01b53ca20eb2

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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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