YARA · Malpedia signator rules
MALPEDIA_Win_Redyms_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: Redyms.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-redyms-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Redyms_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "2f69e704-8c2b-5e98-9c61-935ce0d086c9"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.redyms"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.redyms_auto.yar#L1-L132"
= "N/A"
= "7def7132508b19206ce192505b0bb1dcfc36d60dc042f3be374902228186de08"
= 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 = { a1???????? 8d7828 57 894518 ffd3 83c8ff 8bce }
$sequence_1 = { 8945f8 ffd3 83c9ff 8bd6 f00fc10a 85c9 }
$sequence_2 = { 8a0431 3c10 7506 c604312d eb05 0441 880431 }
$sequence_3 = { 8bc7 83f05b 014508 47 3bfb 72ca 8d4b04 }
$sequence_4 = { 8d1c9d10000000 833c0b00 0f85b2feffff 5e 5b 8be5 5d }
$sequence_5 = { 50 56 ff15???????? 8975f8 85f6 747b 8b450c }
$sequence_6 = { 8b35???????? 8d4dec 8bd1 33c0 c645eb00 2bf2 8a140e }
$sequence_7 = { 8d7828 57 8945f8 ffd3 83caff 8bc6 f00fc110 }
$sequence_8 = { 50 ff15???????? 57 ff15???????? 8b4dfc 8b1d???????? 51 }
$sequence_9 = { 8d7828 57 c745bce479f403 8bf0 ffd3 8d45a8 }
condition:
7 of them and filesize < 98304
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { a1???????? 8d7828 57 894518 ffd3 83c8ff 8bce } | |
| $sequence_1 | hex | { 8945f8 ffd3 83c9ff 8bd6 f00fc10a 85c9 } | |
| $sequence_2 | hex | { 8a0431 3c10 7506 c604312d eb05 0441 880431 } | |
| $sequence_3 | hex | { 8bc7 83f05b 014508 47 3bfb 72ca 8d4b04 } | |
| $sequence_4 | hex | { 8d1c9d10000000 833c0b00 0f85b2feffff 5e 5b 8be5 5d } | |
| $sequence_5 | hex | { 50 56 ff15???????? 8975f8 85f6 747b 8b450c } | |
| $sequence_6 | hex | { 8b35???????? 8d4dec 8bd1 33c0 c645eb00 2bf2 8a140e } | |
| $sequence_7 | hex | { 8d7828 57 8945f8 ffd3 83caff 8bc6 f00fc110 } | |
| $sequence_8 | hex | { 50 ff15???????? 57 ff15???????? 8b4dfc 8b1d???????? 51 } | |
| $sequence_9 | hex | { 8d7828 57 c745bce479f403 8bf0 ffd3 8d45a8 } |
Condition
7 of them and filesize < 98304In plain words (Heuristic)
- The file must be smaller than 98304 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 2f69e704-8c2b-5e98-9c61-935ce0d086c9
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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