YARA · Malpedia signator rules
MALPEDIA_Win_Radrat_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: Radrat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-radrat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Radrat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1c27b074-be21-5c7f-8ea6-5afa829a892c"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.radrat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.radrat_auto.yar#L1-L134"
= "N/A"
= "dc8f541fb37ec4acde3ed3a7445628cc2d8faf9fbdea529d1c9437a132a74a84"
= 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 = { 8d8d60feffff e8???????? f7d8 1bc0 40 25ff000000 85c0 }
$sequence_1 = { e8???????? c645fc01 8d8d5cffffff e8???????? 8b4508 e9???????? 6a00 }
$sequence_2 = { e8???????? 83c40c c645fc02 8d8d50ffffff e8???????? 8d8d78ffffff e8???????? }
$sequence_3 = { e8???????? 83c40c 8b5508 8b4210 8b4ddc 8b55fc 891488 }
$sequence_4 = { e8???????? 8b8d54fdffff 83c901 898d54fdffff c645fc01 8d8d3cffffff e8???????? }
$sequence_5 = { e8???????? c645fc08 8b8d6cfbffff 83c108 e8???????? c645fc04 8d8ddefdffff }
$sequence_6 = { 8b4808 6bc928 8b5508 8b4204 03c1 8985dcfdffff e9???????? }
$sequence_7 = { c3 55 8bec 83ec14 8b4508 8b481c 894df4 }
$sequence_8 = { 8d8dc4dbffff e8???????? 6a00 8b8d44dbffff e8???????? 50 8d8dc4dbffff }
$sequence_9 = { e9???????? 83bd54ffffff07 0f85b3020000 6a01 8d8db8e9ffff 51 8b4d08 }
condition:
7 of them and filesize < 2080768
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d8d60feffff e8???????? f7d8 1bc0 40 25ff000000 85c0 } | |
| $sequence_1 | hex | { e8???????? c645fc01 8d8d5cffffff e8???????? 8b4508 e9???????? 6a00 } | |
| $sequence_2 | hex | { e8???????? 83c40c c645fc02 8d8d50ffffff e8???????? 8d8d78ffffff e8???????? } | |
| $sequence_3 | hex | { e8???????? 83c40c 8b5508 8b4210 8b4ddc 8b55fc 891488 } | |
| $sequence_4 | hex | { e8???????? 8b8d54fdffff 83c901 898d54fdffff c645fc01 8d8d3cffffff e8???????? } | |
| $sequence_5 | hex | { e8???????? c645fc08 8b8d6cfbffff 83c108 e8???????? c645fc04 8d8ddefdffff } | |
| $sequence_6 | hex | { 8b4808 6bc928 8b5508 8b4204 03c1 8985dcfdffff e9???????? } | |
| $sequence_7 | hex | { c3 55 8bec 83ec14 8b4508 8b481c 894df4 } | |
| $sequence_8 | hex | { 8d8dc4dbffff e8???????? 6a00 8b8d44dbffff e8???????? 50 8d8dc4dbffff } | |
| $sequence_9 | hex | { e9???????? 83bd54ffffff07 0f85b3020000 6a01 8d8db8e9ffff 51 8b4d08 } |
Condition
7 of them and filesize < 2080768In plain words (Heuristic)
- The file must be smaller than 2080768 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 1c27b074-be21-5c7f-8ea6-5afa829a892c
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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