YARA · Malpedia signator rules
MALPEDIA_Win_Sykipot_Auto
autogenerated rule brought to you by yara-signator
MalwareSykipotMalpedia 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: Sykipot.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sykipot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sykipot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1732475e-2a21-5d67-a528-ef369c4cd537"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sykipot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sykipot_auto.yar#L1-L125"
= "N/A"
= "9abf4efd5bd135cc65ac418253b276b573f9ec6302eddf366c97d2278d36aab4"
= 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 = { 8944240c 85c0 750f 5f 5e b8???????? 5b }
$sequence_1 = { 894c2430 8d8c2468070000 8954243c 894c2450 8d942468040000 8d4c242c 8d842468060000 }
$sequence_2 = { c744242404000000 ffd7 8b4c2450 6a04 80c980 }
$sequence_3 = { c784249000000040000000 8bfc f3a5 6a02 8bca e8???????? 5f }
$sequence_4 = { 5f 5e 5d b80d000000 5b 81c45c180000 c3 }
$sequence_5 = { c685c0fa011000 45 be???????? b8???????? }
$sequence_6 = { 7423 8d942490020000 52 68???????? 50 ff15???????? }
$sequence_7 = { 81ec0c020000 85c0 53 55 56 }
$sequence_8 = { 83cafe 42 0f95c2 88140e 99 2bc2 d1f8 }
$sequence_9 = { 50 ff15???????? 83c42c 8b4c2410 8d942418030000 51 }
condition:
7 of them and filesize < 286720
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8944240c 85c0 750f 5f 5e b8???????? 5b } | |
| $sequence_1 | hex | { 894c2430 8d8c2468070000 8954243c 894c2450 8d942468040000 8d4c242c 8d842468060000 } | |
| $sequence_2 | hex | { c744242404000000 ffd7 8b4c2450 6a04 80c980 } | |
| $sequence_3 | hex | { c784249000000040000000 8bfc f3a5 6a02 8bca e8???????? 5f } | |
| $sequence_4 | hex | { 5f 5e 5d b80d000000 5b 81c45c180000 c3 } | |
| $sequence_5 | hex | { c685c0fa011000 45 be???????? b8???????? } | |
| $sequence_6 | hex | { 7423 8d942490020000 52 68???????? 50 ff15???????? } | |
| $sequence_7 | hex | { 81ec0c020000 85c0 53 55 56 } | |
| $sequence_8 | hex | { 83cafe 42 0f95c2 88140e 99 2bc2 d1f8 } | |
| $sequence_9 | hex | { 50 ff15???????? 83c42c 8b4c2410 8d942418030000 51 } |
Condition
7 of them and filesize < 286720In plain words (Heuristic)
- The file must be smaller than 286720 (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: 1732475e-2a21-5d67-a528-ef369c4cd537
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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