YARA · Malpedia signator rules
MALPEDIA_Win_Revenant_Auto
autogenerated rule brought to you by yara-signator
MalwareRevenantMalpedia 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: Revenant.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-revenant-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Revenant_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6753dc62-5f76-5215-97ad-3a994241e584"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.revenant"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.revenant_auto.yar#L1-L123"
= "N/A"
= "93e08a376b4592c0adfe0e614b23602d5bc006d17b5a20a6bf8aaa7547387746"
= 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 = { 4883c308 e8???????? 4839df 75cd 4c01e7 }
$sequence_1 = { 4883ec60 4889cb e8???????? 488d0dea380000 e8???????? }
$sequence_2 = { 85c0 7521 488b542428 b940000000 41ffd6 4885c0 4889c2 }
$sequence_3 = { 4883ec28 4889cd 4889d3 4c89c7 4a8d0c0a 4c89ce }
$sequence_4 = { 4c8b3d???????? 4889c3 488d44244f 31d2 4d89f1 4889542420 41b800040000 }
$sequence_5 = { ff15???????? f644245c01 41b90a000000 7406 440fb74c2460 }
$sequence_6 = { 5f c3 4889c8 803800 7405 }
$sequence_7 = { b90a000000 f3ab 4889d9 4889f0 4883c420 5b 5e }
$sequence_8 = { 0fb7942448010000 4889d9 e8???????? 8b542440 4889d9 e8???????? 418b542404 }
$sequence_9 = { 89c5 4889ea 896c244c ff15???????? 448b44244c }
condition:
7 of them and filesize < 99328
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4883c308 e8???????? 4839df 75cd 4c01e7 } | |
| $sequence_1 | hex | { 4883ec60 4889cb e8???????? 488d0dea380000 e8???????? } | |
| $sequence_2 | hex | { 85c0 7521 488b542428 b940000000 41ffd6 4885c0 4889c2 } | |
| $sequence_3 | hex | { 4883ec28 4889cd 4889d3 4c89c7 4a8d0c0a 4c89ce } | |
| $sequence_4 | hex | { 4c8b3d???????? 4889c3 488d44244f 31d2 4d89f1 4889542420 41b800040000 } | |
| $sequence_5 | hex | { ff15???????? f644245c01 41b90a000000 7406 440fb74c2460 } | |
| $sequence_6 | hex | { 5f c3 4889c8 803800 7405 } | |
| $sequence_7 | hex | { b90a000000 f3ab 4889d9 4889f0 4883c420 5b 5e } | |
| $sequence_8 | hex | { 0fb7942448010000 4889d9 e8???????? 8b542440 4889d9 e8???????? 418b542404 } | |
| $sequence_9 | hex | { 89c5 4889ea 896c244c ff15???????? 448b44244c } |
Condition
7 of them and filesize < 99328In plain words (Heuristic)
- The file must be smaller than 99328 (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: 6753dc62-5f76-5215-97ad-3a994241e584
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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