TrojanDownloader_Win64_Johnnygo_A_dha

YARA detection rule by roadwy

TrojanDownloader:Win64/Johnnygo.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00

rule TrojanDownloader_Win64_Johnnygo_A_dha{
	meta:
		description = "TrojanDownloader:Win64/Johnnygo.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_01_0 = {65 78 70 61 6e 64 20 33 32 2d 62 79 74 65 20 6b 65 78 70 61 6e 64 20 33 32 2d 62 79 74 65 20 6b } 		$a_01_1 = {63 3a 2f 67 6f 2f 77 6f 72 6b 2f 73 65 72 76 69 63 65 49 49 2f 73 65 72 76 69 63 65 2e 67 6f } 		$a_01_2 = {63 3a 2f 67 6f 2f 73 72 63 2f 67 69 74 68 75 62 2e 63 6f 6d 2f 6b 61 72 64 69 61 6e 6f 73 2f 73 65 72 76 69 63 65 2f 73 65 72 76 69 63 65 2e 67 6f } 		$a_01_3 = {43 3a 2f 55 73 65 72 73 2f 6a 6f 68 6e 2f 67 6f 2f 73 72 63 2f 67 6f 6c 61 6e 67 2e 6f 72 67 2f 78 2f 73 79 73 2f 77 69 6e 64 6f 77 73 2f 73 76 63 2f 73 65 72 76 69 63 65 2e 67 6f } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

b15ede80-2f59-47dd-8d15-4383762a794f

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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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