YARA · Malpedia signator rules
MALPEDIA_Win_Saigon_Auto
autogenerated rule brought to you by yara-signator
- 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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "5c219dba-79ac-5e6b-8b06-1981705aeb25"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.saigon"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.saigon_auto.yar#L1-L119"
= "N/A"
= "9a7d28f467a6c3f78efa353c4e242537cdf939f610ed03d1a386bdc6442e8409"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 488bf1 488d4c2420 488bd5 e8???????? } | |
| $sequence_1 | hex | { 448bc7 895c2420 e8???????? 488d842450010000 4c8d842420040000 488d9424b0040000 488d8c2400030000 } | |
| $sequence_2 | hex | { 488364243000 4533c0 488bd3 33c9 c744242800000008 8364242000 c784248000000068000000 } | |
| $sequence_3 | hex | { 488d442454 4c8d442470 418d5112 488bcb 4889442420 ff15???????? } | |
| $sequence_4 | hex | { 488d842470020000 4c8d842440050000 488d942490030000 488d8c24c0000000 448bcb 895c2428 } | |
| $sequence_5 | hex | { 488d542430 488d4c2430 895c2420 e8???????? 4c8d842470020000 } | |
| $sequence_6 | hex | { 488b8c2498000000 4c8d842490000000 33d2 488b01 } | |
| $sequence_7 | hex | { e8???????? bf26000000 3bc6 0f44c7 8bd8 e9???????? } | |
| $sequence_8 | hex | { 488b0d???????? 33d2 ff15???????? 488b0d???????? 4d8bc4 33d2 } | |
| $sequence_9 | hex | { 8b9424b0000000 eb52 8364242800 488d442460 } |
Condition
7 of them and filesize < 147456In 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.
Test this rule in your browser
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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)
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
| 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 |
Tags:FILE
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