YARA · Malpedia signator rules
MALPEDIA_Win_Adylkuzz_Auto
autogenerated rule brought to you by yara-signator
MalwareAdylkuzzMalpedia 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: Adylkuzz.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-adylkuzz-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Adylkuzz_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "ca8dca20-e3d7-5d06-90fd-034768625e2b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.adylkuzz"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.adylkuzz_auto.yar#L1-L134"
= "N/A"
= "2df82c6d65aebe8e209b022c559158db7c65d3182ae1b0a804c91d82c76f6903"
= 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 = { eb41 83f805 7529 8b4310 8b4804 8d5104 83faf6 }
$sequence_1 = { e8???????? 89c6 eb18 85f6 7914 897c2408 c744240469060000 }
$sequence_2 = { 98 86e4 9c 6623c7 0fbaf814 8f442500 66f7d0 }
$sequence_3 = { e8???????? ebf2 8b4314 c1e80a eb4b 8b4314 25ff030000 }
$sequence_4 = { ff510c 8b4618 85c0 7428 807e0700 7f22 c1e003 }
$sequence_5 = { b801000000 7522 8b06 0fb74006 89442404 8b442420 890424 }
$sequence_6 = { 8b442420 f644241480 894350 8a442425 884354 8a442426 884355 }
$sequence_7 = { f9 35281d135f f8 c1c803 81fda95ea722 f8 663bfb }
$sequence_8 = { f7d0 85ed f6c637 f5 f7d8 c1c003 f7d8 }
$sequence_9 = { c3 8b442408 8b542404 c7400400000000 895008 8d500c 8910 }
condition:
7 of them and filesize < 6438912
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { eb41 83f805 7529 8b4310 8b4804 8d5104 83faf6 } | |
| $sequence_1 | hex | { e8???????? 89c6 eb18 85f6 7914 897c2408 c744240469060000 } | |
| $sequence_2 | hex | { 98 86e4 9c 6623c7 0fbaf814 8f442500 66f7d0 } | |
| $sequence_3 | hex | { e8???????? ebf2 8b4314 c1e80a eb4b 8b4314 25ff030000 } | |
| $sequence_4 | hex | { ff510c 8b4618 85c0 7428 807e0700 7f22 c1e003 } | |
| $sequence_5 | hex | { b801000000 7522 8b06 0fb74006 89442404 8b442420 890424 } | |
| $sequence_6 | hex | { 8b442420 f644241480 894350 8a442425 884354 8a442426 884355 } | |
| $sequence_7 | hex | { f9 35281d135f f8 c1c803 81fda95ea722 f8 663bfb } | |
| $sequence_8 | hex | { f7d0 85ed f6c637 f5 f7d8 c1c003 f7d8 } | |
| $sequence_9 | hex | { c3 8b442408 8b542404 c7400400000000 895008 8d500c 8910 } |
Condition
7 of them and filesize < 6438912In plain words (Heuristic)
- The file must be smaller than 6438912 (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: ca8dca20-e3d7-5d06-90fd-034768625e2b
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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