YARA · Malpedia signator rules
MALPEDIA_Win_Vermilion_Strike_Auto
autogenerated rule brought to you by yara-signator
MalwareVermilion StrikeMalpedia 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: Vermilion Strike.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-vermilion-strike-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Vermilion_Strike_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "49d90ef8-3759-57a0-adac-9690460f5acf"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.vermilion_strike"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.vermilion_strike_auto.yar#L1-L127"
= "N/A"
= "d9789a266624fc4fe86b5a8e26e2b9e0a209ced3a81f68414975a2c27c03f158"
= 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 = { 751f 833d????????10 a1???????? 7305 b8???????? 68204e0000 }
$sequence_1 = { e8???????? 83c404 53 33db c746580f000000 }
$sequence_2 = { 6a02 53 52 8bcf 89742434 e8???????? }
$sequence_3 = { e8???????? 50 a1???????? 50 e8???????? 85c0 7448 }
$sequence_4 = { 89442428 8b451c 89442430 894c2418 8b4d24 89542414 }
$sequence_5 = { 83f910 7304 8d442450 3bc3 7711 8bc2 83f910 }
$sequence_6 = { 8b0d???????? 6a00 68???????? 894e18 c7460810000000 ff15???????? }
$sequence_7 = { 03c6 885c2408 8a5802 8a4003 8844240c 83c604 }
$sequence_8 = { 884c2414 8bd0 c1fa10 8bc8 88442417 8b442410 88542415 }
$sequence_9 = { 56 8b742418 8b5618 57 8d4604 83fa08 7204 }
condition:
7 of them and filesize < 540672
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 751f 833d????????10 a1???????? 7305 b8???????? 68204e0000 } | |
| $sequence_1 | hex | { e8???????? 83c404 53 33db c746580f000000 } | |
| $sequence_2 | hex | { 6a02 53 52 8bcf 89742434 e8???????? } | |
| $sequence_3 | hex | { e8???????? 50 a1???????? 50 e8???????? 85c0 7448 } | |
| $sequence_4 | hex | { 89442428 8b451c 89442430 894c2418 8b4d24 89542414 } | |
| $sequence_5 | hex | { 83f910 7304 8d442450 3bc3 7711 8bc2 83f910 } | |
| $sequence_6 | hex | { 8b0d???????? 6a00 68???????? 894e18 c7460810000000 ff15???????? } | |
| $sequence_7 | hex | { 03c6 885c2408 8a5802 8a4003 8844240c 83c604 } | |
| $sequence_8 | hex | { 884c2414 8bd0 c1fa10 8bc8 88442417 8b442410 88542415 } | |
| $sequence_9 | hex | { 56 8b742418 8b5618 57 8d4604 83fa08 7204 } |
Condition
7 of them and filesize < 540672In plain words (Heuristic)
- The file must be smaller than 540672 (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: 49d90ef8-3759-57a0-adac-9690460f5acf
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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