YARA · Malpedia signator rules
MALPEDIA_Win_Erebus_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: Erebus.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-erebus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Erebus_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "b55f6d61-5516-52a8-9f11-bbc6c3256406"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.erebus"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.erebus_auto.yar#L1-L134"
= "N/A"
= "58a7097f7d645c280477f955a2776e0b140b8f1b0ba314c39e5de6941820eb32"
= 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 = { 57 ff750c e8???????? 83c41c 8d4c246c ffb424b4000000 ffb424bc000000 }
$sequence_1 = { 83fa40 7707 ba40000000 eb19 8d42ff 8d4c241c 8944241c }
$sequence_2 = { 7433 8b07 83f81d 7d2c 83f81a 7c06 837d0c04 }
$sequence_3 = { e8???????? 83c404 c645fc06 83bd14ffffff10 c745c00f000000 c745bc00000000 c645ac00 }
$sequence_4 = { c741140f000000 c7411000000000 50 c60100 e8???????? 8d8d30ffffff e8???????? }
$sequence_5 = { ff35???????? 50 e8???????? ff35???????? e8???????? 83c404 8d045b }
$sequence_6 = { 68???????? c744241000000000 c705????????402b4f00 e8???????? 83c404 8b442414 8b4c2418 }
$sequence_7 = { 8d44240c c644245c00 50 c7442410a0fb4f00 e8???????? 8b4c2450 64890d00000000 }
$sequence_8 = { 2142fc 5b 5f 5e c20400 68???????? e8???????? }
$sequence_9 = { 8bcb 6a00 8b4014 ffd0 8b7510 8d4c2478 0fb6c0 }
condition:
7 of them and filesize < 2564096
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 57 ff750c e8???????? 83c41c 8d4c246c ffb424b4000000 ffb424bc000000 } | |
| $sequence_1 | hex | { 83fa40 7707 ba40000000 eb19 8d42ff 8d4c241c 8944241c } | |
| $sequence_2 | hex | { 7433 8b07 83f81d 7d2c 83f81a 7c06 837d0c04 } | |
| $sequence_3 | hex | { e8???????? 83c404 c645fc06 83bd14ffffff10 c745c00f000000 c745bc00000000 c645ac00 } | |
| $sequence_4 | hex | { c741140f000000 c7411000000000 50 c60100 e8???????? 8d8d30ffffff e8???????? } | |
| $sequence_5 | hex | { ff35???????? 50 e8???????? ff35???????? e8???????? 83c404 8d045b } | |
| $sequence_6 | hex | { 68???????? c744241000000000 c705????????402b4f00 e8???????? 83c404 8b442414 8b4c2418 } | |
| $sequence_7 | hex | { 8d44240c c644245c00 50 c7442410a0fb4f00 e8???????? 8b4c2450 64890d00000000 } | |
| $sequence_8 | hex | { 2142fc 5b 5f 5e c20400 68???????? e8???????? } | |
| $sequence_9 | hex | { 8bcb 6a00 8b4014 ffd0 8b7510 8d4c2478 0fb6c0 } |
Condition
7 of them and filesize < 2564096In plain words (Heuristic)
- The file must be smaller than 2564096 (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: b55f6d61-5516-52a8-9f11-bbc6c3256406
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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