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MALPEDIA_Win_Saigon_Auto

autogenerated rule brought to you by yara-signator

MalwareSaigonMalpedia 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: Saigon.

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

Summary generated from the rule's metadata and condition.

Rule source

win-saigon-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Saigon_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "5c219dba-79ac-5e6b-8b06-1981705aeb25"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.saigon"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.saigon_auto.yar#L1-L119"
		license_url = "N/A"
		logic_hash = "9a7d28f467a6c3f78efa353c4e242537cdf939f610ed03d1a386bdc6442e8409"
		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 = { 488bf1 488d4c2420 488bd5 e8???????? }
		$sequence_1 = { 448bc7 895c2420 e8???????? 488d842450010000 4c8d842420040000 488d9424b0040000 488d8c2400030000 }
		$sequence_2 = { 488364243000 4533c0 488bd3 33c9 c744242800000008 8364242000 c784248000000068000000 }
		$sequence_3 = { 488d442454 4c8d442470 418d5112 488bcb 4889442420 ff15???????? }
		$sequence_4 = { 488d842470020000 4c8d842440050000 488d942490030000 488d8c24c0000000 448bcb 895c2428 }
		$sequence_5 = { 488d542430 488d4c2430 895c2420 e8???????? 4c8d842470020000 }
		$sequence_6 = { 488b8c2498000000 4c8d842490000000 33d2 488b01 }
		$sequence_7 = { e8???????? bf26000000 3bc6 0f44c7 8bd8 e9???????? }
		$sequence_8 = { 488b0d???????? 33d2 ff15???????? 488b0d???????? 4d8bc4 33d2 }
		$sequence_9 = { 8b9424b0000000 eb52 8364242800 488d442460 }

	condition:
		7 of them and filesize < 147456
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 488bf1 488d4c2420 488bd5 e8???????? }
$sequence_1hex{ 448bc7 895c2420 e8???????? 488d842450010000 4c8d842420040000 488d9424b0040000 488d8c2400030000 }
$sequence_2hex{ 488364243000 4533c0 488bd3 33c9 c744242800000008 8364242000 c784248000000068000000 }
$sequence_3hex{ 488d442454 4c8d442470 418d5112 488bcb 4889442420 ff15???????? }
$sequence_4hex{ 488d842470020000 4c8d842440050000 488d942490030000 488d8c24c0000000 448bcb 895c2428 }
$sequence_5hex{ 488d542430 488d4c2430 895c2420 e8???????? 4c8d842470020000 }
$sequence_6hex{ 488b8c2498000000 4c8d842490000000 33d2 488b01 }
$sequence_7hex{ e8???????? bf26000000 3bc6 0f44c7 8bd8 e9???????? }
$sequence_8hex{ 488b0d???????? 33d2 ff15???????? 488b0d???????? 4d8bc4 33d2 }
$sequence_9hex{ 8b9424b0000000 eb52 8364242800 488d442460 }

Condition

7 of them and filesize < 147456

In plain words (Heuristic)

  • The file must be smaller than 147456 (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: 5c219dba-79ac-5e6b-8b06-1981705aeb25

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