YARA · Malpedia signator rules
MALPEDIA_Win_Fast_Pos_Auto
autogenerated rule brought to you by yara-signator
MalwareFast PosMalpedia 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: Fast Pos.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-fast-pos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Fast_Pos_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "ade8a502-6d2a-505f-913b-4ccf6f60d01b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.fast_pos"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.fast_pos_auto.yar#L1-L124"
= "N/A"
= "4198b8f4efada69a296e0a68647a012e73820aa794b97f722c136001b60ea22b"
= 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 = { c745fc00000000 50 68???????? 56 c785e8feffff01000000 }
$sequence_1 = { c785e8feffff01000000 e8???????? 83c40c 8bc6 8b4df4 64890d00000000 59 }
$sequence_2 = { 7d12 52 8d8de0feffff e8???????? }
$sequence_3 = { e8???????? 8b95e4feffff 83c408 85c0 0f9485ebfeffff 83c2f0 83cfff }
$sequence_4 = { 68ffff1f00 ff15???????? 6a00 50 }
$sequence_5 = { 8d85e4feffff c745fc00000000 50 8d85ecfeffff c785e8feffff00000000 50 }
$sequence_6 = { 751e 8b4d08 57 e8???????? 8b4508 5f 5e }
$sequence_7 = { c785e4feffff04010000 ff15???????? 85c0 7558 8d85e4feffff 50 }
$sequence_8 = { 6a64 8d4580 c745fc00000000 50 89b578ffffff c7857cffffff00000000 ff15???????? }
$sequence_9 = { 50 8d85ecfeffff c785e8feffff00000000 50 89b5e0feffff c785e4feffff04010000 ff15???????? }
condition:
7 of them and filesize < 327680
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c745fc00000000 50 68???????? 56 c785e8feffff01000000 } | |
| $sequence_1 | hex | { c785e8feffff01000000 e8???????? 83c40c 8bc6 8b4df4 64890d00000000 59 } | |
| $sequence_2 | hex | { 7d12 52 8d8de0feffff e8???????? } | |
| $sequence_3 | hex | { e8???????? 8b95e4feffff 83c408 85c0 0f9485ebfeffff 83c2f0 83cfff } | |
| $sequence_4 | hex | { 68ffff1f00 ff15???????? 6a00 50 } | |
| $sequence_5 | hex | { 8d85e4feffff c745fc00000000 50 8d85ecfeffff c785e8feffff00000000 50 } | |
| $sequence_6 | hex | { 751e 8b4d08 57 e8???????? 8b4508 5f 5e } | |
| $sequence_7 | hex | { c785e4feffff04010000 ff15???????? 85c0 7558 8d85e4feffff 50 } | |
| $sequence_8 | hex | { 6a64 8d4580 c745fc00000000 50 89b578ffffff c7857cffffff00000000 ff15???????? } | |
| $sequence_9 | hex | { 50 8d85ecfeffff c785e8feffff00000000 50 89b5e0feffff c785e4feffff04010000 ff15???????? } |
Condition
7 of them and filesize < 327680In plain words (Heuristic)
- The file must be smaller than 327680 (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: ade8a502-6d2a-505f-913b-4ccf6f60d01b
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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