YARA · Malpedia signator rules
MALPEDIA_Win_Simplefilemover_Auto
autogenerated rule brought to you by yara-signator
MalwareSimplefilemoverMalpedia 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 / 73
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Simplefilemover.
It defines 22 patterns (0 text, 22 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-simplefilemover-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Simplefilemover_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "fe7f1173-936a-59a5-be67-c1759f3eaafe"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.simplefilemover"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.simplefilemover_auto.yar#L1-L219"
= "N/A"
= "e98482deeb7c570cb88ff9037be4fb890cd449b80eb64a7d927279cdad8d5053"
= 75
= 73
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 8bfc f3a5 e8???????? 81c420020000 }
$sequence_1 = { 33c0 e9???????? 6820020000 ff15???????? }
$sequence_2 = { 81c420020000 85c0 7407 68???????? eb05 68???????? }
$sequence_3 = { b988000000 8bf3 8bfc f3a5 }
$sequence_4 = { 7908 4b 81cb00ffffff 43 885c242c 8a5c241c 8b74242c }
$sequence_5 = { 6a00 8b8504daffff 50 ff15???????? 898510daffff 6a00 }
$sequence_6 = { e8???????? 8d85a4ddffff 57 50 8d45f8 }
$sequence_7 = { 7518 6a00 6a00 8d8554daffff 50 8b8d04daffff }
$sequence_8 = { 8b742410 57 56 50 51 }
$sequence_9 = { 6a00 6a00 8d8d28daffff 51 }
$sequence_10 = { 6685c0 7433 8bcb 663d5c00 }
$sequence_11 = { 8bfa 46 668b4102 83c102 42 6685c0 75ea }
$sequence_12 = { 6a00 ffd7 ff7508 8d4302 50 ff15???????? ff7604 }
$sequence_13 = { 8b7c2418 8b5c2428 47 897c2418 0fbfff 3bfb 0f8c54ffffff }
$sequence_14 = { 8d8d00ffffff 51 e8???????? 83c404 50 }
$sequence_15 = { bf00010000 99 f7ff 0fb6c2 8945f0 }
$sequence_16 = { 8a4c242c 5d 5b 5f 889000010000 888801010000 }
$sequence_17 = { 85f6 7417 8b4c2414 8d447b02 50 }
$sequence_18 = { 888801010000 5e 83c410 c3 5f 888800010000 }
$sequence_19 = { 83c404 c78508daffff00000000 e9???????? 6a00 }
$sequence_20 = { 6a10 50 ff75fc ffd6 83f8ff 7558 ff15???????? }
$sequence_21 = { 6a01 6a00 8b8508daffff 2b85fcd9ffff 50 }
condition:
7 of them and filesize < 57344
}
Strings (22 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8bfc f3a5 e8???????? 81c420020000 } | |
| $sequence_1 | hex | { 33c0 e9???????? 6820020000 ff15???????? } | |
| $sequence_2 | hex | { 81c420020000 85c0 7407 68???????? eb05 68???????? } | |
| $sequence_3 | hex | { b988000000 8bf3 8bfc f3a5 } | |
| $sequence_4 | hex | { 7908 4b 81cb00ffffff 43 885c242c 8a5c241c 8b74242c } | |
| $sequence_5 | hex | { 6a00 8b8504daffff 50 ff15???????? 898510daffff 6a00 } | |
| $sequence_6 | hex | { e8???????? 8d85a4ddffff 57 50 8d45f8 } | |
| $sequence_7 | hex | { 7518 6a00 6a00 8d8554daffff 50 8b8d04daffff } | |
| $sequence_8 | hex | { 8b742410 57 56 50 51 } | |
| $sequence_9 | hex | { 6a00 6a00 8d8d28daffff 51 } | |
| $sequence_10 | hex | { 6685c0 7433 8bcb 663d5c00 } | |
| $sequence_11 | hex | { 8bfa 46 668b4102 83c102 42 6685c0 75ea } | |
| $sequence_12 | hex | { 6a00 ffd7 ff7508 8d4302 50 ff15???????? ff7604 } | |
| $sequence_13 | hex | { 8b7c2418 8b5c2428 47 897c2418 0fbfff 3bfb 0f8c54ffffff } | |
| $sequence_14 | hex | { 8d8d00ffffff 51 e8???????? 83c404 50 } | |
| $sequence_15 | hex | { bf00010000 99 f7ff 0fb6c2 8945f0 } | |
| $sequence_16 | hex | { 8a4c242c 5d 5b 5f 889000010000 888801010000 } | |
| $sequence_17 | hex | { 85f6 7417 8b4c2414 8d447b02 50 } | |
| $sequence_18 | hex | { 888801010000 5e 83c410 c3 5f 888800010000 } | |
| $sequence_19 | hex | { 83c404 c78508daffff00000000 e9???????? 6a00 } | |
| $sequence_20 | hex | { 6a10 50 ff75fc ffd6 83f8ff 7558 ff15???????? } | |
| $sequence_21 | hex | { 6a01 6a00 8b8508daffff 2b85fcd9ffff 50 } |
Condition
7 of them and filesize < 57344In plain words (Heuristic)
- The file must be smaller than 57344 (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: fe7f1173-936a-59a5-be67-c1759f3eaafe
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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