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MALPEDIA_Win_Moriagent_Auto

autogenerated rule brought to you by yara-signator

MalwareMoriagentMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Moriagent.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-moriagent-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Moriagent_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "8cf65ede-d703-5568-83f2-878021165f0a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.moriagent"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.moriagent_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "1452f9a161675a1fc5d785cda904da30f21bf33db11d60376758a624f2a6a750"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 8841ff 84c0 75f3 68027f0000 6a00 ff15???????? }
		$sequence_1 = { 8b4528 c78564efffff00000000 c78568efffff0f000000 c68554efffff00 89b5d0eeffff 898500efffff 3bf0 }
		$sequence_2 = { 3b7814 7308 8bc7 5f 5e 8be5 5d }
		$sequence_3 = { e8???????? 03c7 8985d8eeffff 3bb550efffff 7432 52 c7461000000000 }
		$sequence_4 = { 50 c785e8feffff00000000 ff35???????? ff15???????? 50 8d85ecfeffff c7461000000000 }
		$sequence_5 = { 7202 8b01 8bb5bceeffff 66893410 c644100200 eb1d 6a02 }
		$sequence_6 = { 8b9568efffff 83fa10 722f 8b8d54efffff }
		$sequence_7 = { e8???????? 83c408 8b45f0 03c7 893b 894304 8b45f8 }
		$sequence_8 = { 3bc6 0f42c6 3daaaaaa0a 0f872f010000 8d3c40 c1e703 81ff00100000 }
		$sequence_9 = { 51 52 8d4dc8 e8???????? 8b45e4 8d4dc8 3bc1 }

	condition:
		7 of them and filesize < 720896
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8841ff 84c0 75f3 68027f0000 6a00 ff15???????? }
$sequence_1hex{ 8b4528 c78564efffff00000000 c78568efffff0f000000 c68554efffff00 89b5d0eeffff 898500efffff 3bf0 }
$sequence_2hex{ 3b7814 7308 8bc7 5f 5e 8be5 5d }
$sequence_3hex{ e8???????? 03c7 8985d8eeffff 3bb550efffff 7432 52 c7461000000000 }
$sequence_4hex{ 50 c785e8feffff00000000 ff35???????? ff15???????? 50 8d85ecfeffff c7461000000000 }
$sequence_5hex{ 7202 8b01 8bb5bceeffff 66893410 c644100200 eb1d 6a02 }
$sequence_6hex{ 8b9568efffff 83fa10 722f 8b8d54efffff }
$sequence_7hex{ e8???????? 83c408 8b45f0 03c7 893b 894304 8b45f8 }
$sequence_8hex{ 3bc6 0f42c6 3daaaaaa0a 0f872f010000 8d3c40 c1e703 81ff00100000 }
$sequence_9hex{ 51 52 8d4dc8 e8???????? 8b45e4 8d4dc8 3bc1 }

Condition

7 of them and filesize < 720896

In plain words (Heuristic)

  • The file must be smaller than 720896 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 8cf65ede-d703-5568-83f2-878021165f0a

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE