TrojanDropper_Win32_Frethog_N

YARA detection rule by roadwy

TrojanDropper:Win32/Frethog.N,SIGNATURE_TYPE_PEHSTR_EXT,05 00 04 00 05 00 00

rule TrojanDropper_Win32_Frethog_N{
	meta:
		description = "TrojanDropper:Win32/Frethog.N,SIGNATURE_TYPE_PEHSTR_EXT,05 00 04 00 05 00 00 "
		
	strings :
		$a_00_0 = {75 70 78 64 6e 64 2e 65 78 65 } 		$a_00_1 = {75 70 78 64 6e 64 2e 64 6c 6c } 		$a_00_2 = {65 78 70 6c 6f 72 65 72 2e 65 78 65 } 		$a_00_3 = {35 31 33 34 33 32 38 31 } 		$a_01_4 = {50 ff 15 24 20 40 00 8d 85 e0 fc ff ff 56 50 8d 85 e4 fd ff ff 50 ff d7 8d 85 e0 fc ff ff 68 cc 30 40 00 50 e8 52 08 00 00 8d 85 e0 fc ff ff 68 94 30 40 00 50 e8 41 08 00 00 83 c4 10 8d 85 e0 fc ff ff 53 50 8d 85 dc fb ff ff 50 ff 15 84 20 40 00 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_01_4  & 1)*1) >=4
 
}

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

736af7f3-ed26-40df-802f-ba1627407ec2

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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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