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MALPEDIA_Win_Mimic_Auto

autogenerated rule brought to you by yara-signator

MalwareMimicMalpedia 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: Mimic.

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

Summary generated from the rule's metadata and condition.

Rule source

win-mimic-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mimic_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "00a16a7c-48b3-5f0e-88a8-89ba47d815a4"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.mimic"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mimic_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "7761e5895ed8b8755b4c4387f41077aecea128dfbbd599f5bbf827d143614f9a"
		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 = { 0fb6c1 33148508ee5b00 8bc7 c1e810 33d3 0fb6c8 33de }
		$sequence_1 = { 7429 83e804 83f86c 77e8 0fb680147a4d00 ff24850c7a4d00 2d86000000 }
		$sequence_2 = { 83ec14 8b4518 8b5508 53 8bd9 8945f0 }
		$sequence_3 = { 53 56 57 8d442414 c744241400000000 50 51 }
		$sequence_4 = { 0f84c1010000 8b45ec 33c9 3b45e0 0f85b3010000 3b4de4 0f85aa010000 }
		$sequence_5 = { 8975dc c745e400000000 837f1410 8b5f10 7202 8b3f e8???????? }
		$sequence_6 = { c70700000000 b801000000 e9???????? ff15???????? 50 68???????? }
		$sequence_7 = { 0f8483000000 eb7d 8b1c9de8a75c00 6800080000 6a00 53 ff15???????? }
		$sequence_8 = { 50 6a00 ff75ec 0f1145dc ff15???????? 85c0 0f8878ffffff }
		$sequence_9 = { 663930 75f2 85c0 7523 3bd7 7405 83ea02 }

	condition:
		7 of them and filesize < 4204544
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0fb6c1 33148508ee5b00 8bc7 c1e810 33d3 0fb6c8 33de }
$sequence_1hex{ 7429 83e804 83f86c 77e8 0fb680147a4d00 ff24850c7a4d00 2d86000000 }
$sequence_2hex{ 83ec14 8b4518 8b5508 53 8bd9 8945f0 }
$sequence_3hex{ 53 56 57 8d442414 c744241400000000 50 51 }
$sequence_4hex{ 0f84c1010000 8b45ec 33c9 3b45e0 0f85b3010000 3b4de4 0f85aa010000 }
$sequence_5hex{ 8975dc c745e400000000 837f1410 8b5f10 7202 8b3f e8???????? }
$sequence_6hex{ c70700000000 b801000000 e9???????? ff15???????? 50 68???????? }
$sequence_7hex{ 0f8483000000 eb7d 8b1c9de8a75c00 6800080000 6a00 53 ff15???????? }
$sequence_8hex{ 50 6a00 ff75ec 0f1145dc ff15???????? 85c0 0f8878ffffff }
$sequence_9hex{ 663930 75f2 85c0 7523 3bd7 7405 83ea02 }

Condition

7 of them and filesize < 4204544

In plain words (Heuristic)

  • The file must be smaller than 4204544 (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: 00a16a7c-48b3-5f0e-88a8-89ba47d815a4

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