YARA · Malpedia signator rules
MALPEDIA_Win_Waterspout_Auto
autogenerated rule brought to you by yara-signator
MalwareWaterspoutMalpedia 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: Waterspout.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-waterspout-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Waterspout_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "a79b4efb-da39-5f20-bd9b-fe533bfadaa3"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.waterspout"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.waterspout_auto.yar#L1-L125"
= "N/A"
= "5954a59154eda57d5dc5c820e0686ecc0875a821c4ee0c4304b80ad4914b4bc7"
= 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 = { c6842491000000ff c6842492000000f3 c6842493000000d2 c6842494000000cd c68424950000000c c684249600000013 }
$sequence_1 = { 885c2412 885c2413 be???????? bf08000000 bd34000000 8b46fc }
$sequence_2 = { ff15???????? 8bb4246c200000 3bc5 8906 751c a1???????? }
$sequence_3 = { 81fe00040000 77bf 8b442420 8b4c241c 8b542414 6a02 03f8 }
$sequence_4 = { be04000000 8a18 83c004 8819 41 4e }
$sequence_5 = { f3ab 8b420c 8b08 8b11 52 e8???????? 8bf8 }
$sequence_6 = { 33c0 be???????? f2ae 8b44240c f7d1 49 8db882000000 }
$sequence_7 = { 50 8d85fcfeffff 58 50 }
$sequence_8 = { 89442428 c1f808 88442413 8b02 2b44241c 83f801 7706 }
$sequence_9 = { 33c0 56 89442409 57 89442411 }
condition:
7 of them and filesize < 98304
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c6842491000000ff c6842492000000f3 c6842493000000d2 c6842494000000cd c68424950000000c c684249600000013 } | |
| $sequence_1 | hex | { 885c2412 885c2413 be???????? bf08000000 bd34000000 8b46fc } | |
| $sequence_2 | hex | { ff15???????? 8bb4246c200000 3bc5 8906 751c a1???????? } | |
| $sequence_3 | hex | { 81fe00040000 77bf 8b442420 8b4c241c 8b542414 6a02 03f8 } | |
| $sequence_4 | hex | { be04000000 8a18 83c004 8819 41 4e } | |
| $sequence_5 | hex | { f3ab 8b420c 8b08 8b11 52 e8???????? 8bf8 } | |
| $sequence_6 | hex | { 33c0 be???????? f2ae 8b44240c f7d1 49 8db882000000 } | |
| $sequence_7 | hex | { 50 8d85fcfeffff 58 50 } | |
| $sequence_8 | hex | { 89442428 c1f808 88442413 8b02 2b44241c 83f801 7706 } | |
| $sequence_9 | hex | { 33c0 56 89442409 57 89442411 } |
Condition
7 of them and filesize < 98304In plain words (Heuristic)
- The file must be smaller than 98304 (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: a79b4efb-da39-5f20-bd9b-fe533bfadaa3
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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