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MALPEDIA_Win_Rugmi_Auto

autogenerated rule brought to you by yara-signator

MalwareRugmiMalpedia 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: Rugmi.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rugmi-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rugmi_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "fa80078d-a0c0-5807-b050-54f5c1a74936"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rugmi"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rugmi_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "89048014201b3c23aeb4b5345e94eb65234f04de3882329a0c258d4184d5cf44"
		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 = { c60020 40 8a08 84c9 75f1 385df4 74d6 }
		$sequence_1 = { 6806010000 8d85a0fdffff 50 ff75fc 8d85a8feffff 50 e8???????? }
		$sequence_2 = { 05d0050000 e9???????? 8b4510 ff30 8b4508 05d4050000 }
		$sequence_3 = { 898724010000 0f846cfaffff 50 ff15???????? 898728010000 59 85c0 }
		$sequence_4 = { 59 59 85c0 7430 8b4e24 bf???????? 85c9 }
		$sequence_5 = { 80be0402000000 0f848c000000 8b8398010000 8b96b8000000 6a20 59 80784700 }
		$sequence_6 = { 740d 80b84302000000 7504 8bc1 eb02 33c0 83e800 }
		$sequence_7 = { 56 e8???????? 83c410 85c0 0f84e5000000 8a55ff }
		$sequence_8 = { 59 85c0 7525 8b868c020000 f6404002 7411 ff750c }
		$sequence_9 = { 57 e8???????? 6a02 57 e8???????? 83c428 e9???????? }

	condition:
		7 of them and filesize < 950272
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c60020 40 8a08 84c9 75f1 385df4 74d6 }
$sequence_1hex{ 6806010000 8d85a0fdffff 50 ff75fc 8d85a8feffff 50 e8???????? }
$sequence_2hex{ 05d0050000 e9???????? 8b4510 ff30 8b4508 05d4050000 }
$sequence_3hex{ 898724010000 0f846cfaffff 50 ff15???????? 898728010000 59 85c0 }
$sequence_4hex{ 59 59 85c0 7430 8b4e24 bf???????? 85c9 }
$sequence_5hex{ 80be0402000000 0f848c000000 8b8398010000 8b96b8000000 6a20 59 80784700 }
$sequence_6hex{ 740d 80b84302000000 7504 8bc1 eb02 33c0 83e800 }
$sequence_7hex{ 56 e8???????? 83c410 85c0 0f84e5000000 8a55ff }
$sequence_8hex{ 59 85c0 7525 8b868c020000 f6404002 7411 ff750c }
$sequence_9hex{ 57 e8???????? 6a02 57 e8???????? 83c428 e9???????? }

Condition

7 of them and filesize < 950272

In plain words (Heuristic)

  • The file must be smaller than 950272 (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: fa80078d-a0c0-5807-b050-54f5c1a74936

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