YARA · Malpedia signator rules
MALPEDIA_Win_Mgbot_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: Mgbot.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-mgbot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mgbot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "dd03dc94-bb3a-5cad-8f13-4bbe4b7f90a6"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.mgbot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mgbot_auto.yar#L1-L114"
= "N/A"
= "7310ce51cc81391fc78e9881bf8f490b2a783d4789728f7661df3e6bdca512d7"
= 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 = { 8be5 5d c20800 6808020000 e8???????? }
$sequence_1 = { 5d c20800 6808020000 e8???????? }
$sequence_2 = { 8be5 5d c20800 6808020000 }
$sequence_3 = { 5b 8be5 5d c20800 6808020000 e8???????? }
$sequence_4 = { 6808020000 e8???????? 6804010000 8bf0 6a00 56 }
$sequence_5 = { 6808020000 e8???????? 6804010000 8bf0 6a00 }
$sequence_6 = { 5b 8be5 5d c20800 6808020000 }
$sequence_7 = { 0f8553ffffff 5f 33c0 5e }
$sequence_8 = { 6808020000 e8???????? 6804010000 8bf0 }
$sequence_9 = { 6808020000 e8???????? 6804010000 8bf0 6a00 56 e8???????? }
condition:
7 of them and filesize < 1677312
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8be5 5d c20800 6808020000 e8???????? } | |
| $sequence_1 | hex | { 5d c20800 6808020000 e8???????? } | |
| $sequence_2 | hex | { 8be5 5d c20800 6808020000 } | |
| $sequence_3 | hex | { 5b 8be5 5d c20800 6808020000 e8???????? } | |
| $sequence_4 | hex | { 6808020000 e8???????? 6804010000 8bf0 6a00 56 } | |
| $sequence_5 | hex | { 6808020000 e8???????? 6804010000 8bf0 6a00 } | |
| $sequence_6 | hex | { 5b 8be5 5d c20800 6808020000 } | |
| $sequence_7 | hex | { 0f8553ffffff 5f 33c0 5e } | |
| $sequence_8 | hex | { 6808020000 e8???????? 6804010000 8bf0 } | |
| $sequence_9 | hex | { 6808020000 e8???????? 6804010000 8bf0 6a00 56 e8???????? } |
Condition
7 of them and filesize < 1677312In plain words (Heuristic)
- The file must be smaller than 1677312 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: dd03dc94-bb3a-5cad-8f13-4bbe4b7f90a6
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
Related rules
- MalwareSEKOIA.IO Community· Sekoia.io· 2024-03-20
- MalwareSEKOIA.IO Community· Sekoia.io· 2024-03-20
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04