YARA · Malpedia signator rules
MALPEDIA_Win_Gooseegg_Auto
autogenerated rule brought to you by yara-signator
MalwareGooseeggMalpedia 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: Gooseegg.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-gooseegg-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gooseegg_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d8132454-9f6e-5d45-ae4a-e06046e4b7c3"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.gooseegg"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gooseegg_auto.yar#L1-L120"
= "N/A"
= "8983b8f0c526551207a00c2d480777794912cb3a61999ef4b05b249edd7a0003"
= 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 = { 4d85c9 488d3d797c0000 488bc2 4c8bfa 4d0f45d1 4885d2 418d6b01 }
$sequence_1 = { 488d05f1550100 c3 488d05f1550100 c3 4883ec28 e8???????? }
$sequence_2 = { eb02 33db 4c8d357194ffff 4885db }
$sequence_3 = { ff15???????? 48832300 4883c308 488d05b9440100 483bd8 }
$sequence_4 = { 488d35abe70000 48895c2420 488d056fff0000 483bd8 7419 483933 740e }
$sequence_5 = { 488b05???????? 488d150ef7ffff 483bc2 7423 65488b042530000000 }
$sequence_6 = { 4c8d0dd17b0000 33c9 4c8d05c47b0000 488d15c57b0000 e8???????? 4885c0 740b }
$sequence_7 = { 488945e0 895128 488d0dbb940000 488b45d8 488908 488d0d0d190100 488b45d8 }
$sequence_8 = { 8bfb e9???????? e8???????? 488d1df2370100 }
$sequence_9 = { 85c0 0f849e000000 4c8d051f330100 ba00020000 }
condition:
7 of them and filesize < 217088
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4d85c9 488d3d797c0000 488bc2 4c8bfa 4d0f45d1 4885d2 418d6b01 } | |
| $sequence_1 | hex | { 488d05f1550100 c3 488d05f1550100 c3 4883ec28 e8???????? } | |
| $sequence_2 | hex | { eb02 33db 4c8d357194ffff 4885db } | |
| $sequence_3 | hex | { ff15???????? 48832300 4883c308 488d05b9440100 483bd8 } | |
| $sequence_4 | hex | { 488d35abe70000 48895c2420 488d056fff0000 483bd8 7419 483933 740e } | |
| $sequence_5 | hex | { 488b05???????? 488d150ef7ffff 483bc2 7423 65488b042530000000 } | |
| $sequence_6 | hex | { 4c8d0dd17b0000 33c9 4c8d05c47b0000 488d15c57b0000 e8???????? 4885c0 740b } | |
| $sequence_7 | hex | { 488945e0 895128 488d0dbb940000 488b45d8 488908 488d0d0d190100 488b45d8 } | |
| $sequence_8 | hex | { 8bfb e9???????? e8???????? 488d1df2370100 } | |
| $sequence_9 | hex | { 85c0 0f849e000000 4c8d051f330100 ba00020000 } |
Condition
7 of them and filesize < 217088In plain words (Heuristic)
- The file must be smaller than 217088 (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: d8132454-9f6e-5d45-ae4a-e06046e4b7c3
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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