Trojan_Win32_Emotetcrypt_IM_MTB

YARA detection rule by roadwy

Trojan:Win32/Emotetcrypt.IM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 02 00 00

rule Trojan_Win32_Emotetcrypt_IM_MTB{
	meta:
		description = "Trojan:Win32/Emotetcrypt.IM!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 02 00 00 "
		
	strings :
		$a_03_0 = {2b c8 03 0d ?? ?? ?? ?? 2b 0d ?? ?? ?? ?? 03 0d ?? ?? ?? ?? 2b 0d ?? ?? ?? ?? 2b 0d ?? ?? ?? ?? a1 ?? ?? ?? ?? 0f af 05 ?? ?? ?? ?? 03 c8 a1 ?? ?? ?? ?? 0f af 05 ?? ?? ?? ?? 03 45 08 0f b6 0c 08 8b 45 0c 0f b6 14 10 33 d1 a1 ?? ?? ?? ?? 0f af 05 ?? ?? ?? ?? 8b 0d } 		$a_81_1 = {50 69 69 66 47 57 25 45 61 37 33 72 33 69 29 6f 65 75 4a 71 45 71 4f 4e 5f 2b 33 52 78 48 29 65 32 4d 6b 72 32 52 21 5f 6d 6b 34 47 46 44 36 4d 6d 2b 58 46 5f } 	condition:
		((#a_03_0  & 1)*1+(#a_81_1  & 1)*1) >=1
 
}

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

4a22e9b2-3938-4d0e-8af9-1996c6d1ca2b

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion