YARA · Malpedia signator rules
MALPEDIA_Win_Eagerbee_Auto
autogenerated rule brought to you by yara-signator
MalwareEagerbeeMalpedia 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: Eagerbee.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-eagerbee-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Eagerbee_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7a126278-7eb1-5d08-9b25-74b27f2a3312"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.eagerbee"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.eagerbee_auto.yar#L1-L128"
= "N/A"
= "a3d744962e3184242280e8a1606b8e9d39f3a62e4bfb278481827290e0059489"
= 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 = { 3986f4160000 0f8576ffffff 8b8684000000 85c0 7809 488bd0 }
$sequence_1 = { 488d4c0422 44896309 e8???????? 8bd0 e9???????? 488d4c0421 e8???????? }
$sequence_2 = { 44396818 0f84b7010000 488d1de463ffff beffff0000 bd00010000 e9???????? 4439af90000000 }
$sequence_3 = { 885c247d 488b08 488d542470 ff5058 b9fb010000 488bd8 e8???????? }
$sequence_4 = { c684242b0100006d 4088bc242c010000 4088b4242d010000 48397308 0f84ae030000 488b05???????? c684249000000073 }
$sequence_5 = { 33c9 8bd7 41b800300000 ff15???????? 8b5500 }
$sequence_6 = { c644243432 c64424352e c644243664 884c2438 488d4c2430 c644243900 }
$sequence_7 = { 488d8c24e0040000 48894c2420 488b8c24e8040000 4c8bc3 ba01000000 ffd0 488b05???????? }
$sequence_8 = { 8a8424c0000000 8b9c24a8000000 488bbc2498000000 88442450 488b8424b8000000 498943e0 8a8424b0000000 }
$sequence_9 = { 4883ec38 83fa01 7528 488364242800 8364242000 }
condition:
7 of them and filesize < 422912
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 3986f4160000 0f8576ffffff 8b8684000000 85c0 7809 488bd0 } | |
| $sequence_1 | hex | { 488d4c0422 44896309 e8???????? 8bd0 e9???????? 488d4c0421 e8???????? } | |
| $sequence_2 | hex | { 44396818 0f84b7010000 488d1de463ffff beffff0000 bd00010000 e9???????? 4439af90000000 } | |
| $sequence_3 | hex | { 885c247d 488b08 488d542470 ff5058 b9fb010000 488bd8 e8???????? } | |
| $sequence_4 | hex | { c684242b0100006d 4088bc242c010000 4088b4242d010000 48397308 0f84ae030000 488b05???????? c684249000000073 } | |
| $sequence_5 | hex | { 33c9 8bd7 41b800300000 ff15???????? 8b5500 } | |
| $sequence_6 | hex | { c644243432 c64424352e c644243664 884c2438 488d4c2430 c644243900 } | |
| $sequence_7 | hex | { 488d8c24e0040000 48894c2420 488b8c24e8040000 4c8bc3 ba01000000 ffd0 488b05???????? } | |
| $sequence_8 | hex | { 8a8424c0000000 8b9c24a8000000 488bbc2498000000 88442450 488b8424b8000000 498943e0 8a8424b0000000 } | |
| $sequence_9 | hex | { 4883ec38 83fa01 7528 488364242800 8364242000 } |
Condition
7 of them and filesize < 422912In plain words (Heuristic)
- The file must be smaller than 422912 (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: 7a126278-7eb1-5d08-9b25-74b27f2a3312
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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