TrojanDownloader_Win32_Cjfee_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Cjfee.A,SIGNATURE_TYPE_PEHSTR,05 00 05 00 05 00 00

rule TrojanDownloader_Win32_Cjfee_A{
	meta:
		description = "TrojanDownloader:Win32/Cjfee.A,SIGNATURE_TYPE_PEHSTR,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {62 6f 74 2e 63 6a 66 65 65 64 73 2e 63 6f 6d 2f 74 61 73 6b 73 2e 70 68 70 3f 63 6a 3d 25 73 26 64 6f 6d 61 69 6e 3d 25 73 26 76 3d } 		$a_01_1 = {63 6a 62 5c 63 6a 62 38 2e 65 78 65 } 		$a_01_2 = {53 4f 46 54 57 41 52 45 5c 4d 69 63 72 6f 73 6f 66 74 5c 57 69 6e 64 6f 77 73 5c 43 75 72 72 65 6e 74 56 65 72 73 69 6f 6e 5c 52 75 6e } 		$a_01_3 = {49 6e 74 65 72 6e 65 74 43 72 61 63 6b 55 72 6c 41 } 		$a_01_4 = {43 72 65 61 74 65 44 69 72 65 63 74 6f 72 79 41 } 	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) >=5
 
}

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

2b7ae28b-5d8d-46a1-8bb9-5bea0b2008f9

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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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