YARA · Malpedia signator rules
MALPEDIA_Win_Taintedscribe_Auto
autogenerated rule brought to you by yara-signator
MalwareTaintedscribeMalpedia 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: Taintedscribe.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-taintedscribe-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Taintedscribe_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "87648f3d-18fe-5762-8343-189a5c1f00dd"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.taintedscribe"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.taintedscribe_auto.yar#L1-L118"
= "N/A"
= "6c4f3c9416e33b444a5b9632d600c2427da852f4c9d6eaaf37da3c4b768d4feb"
= 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 = { c785a0fbffff01000000 53 eb61 e8???????? 33c9 668908 83c002 }
$sequence_1 = { 5e 8be5 5d c20800 c7460c00000001 }
$sequence_2 = { 8908 85db 743b 8b55d8 8b45d4 52 }
$sequence_3 = { 8b4b50 0f94c0 807b1400 899584fbffff 898d8cfbffff }
$sequence_4 = { 57 754c e8???????? 8bf0 }
$sequence_5 = { 8b4dcc 894308 8b45d0 50 }
$sequence_6 = { 885e60 895e58 895e50 895e70 895e54 3bc3 750b }
$sequence_7 = { 8b7508 898650af0100 899648af0100 899644af0100 89964caf0100 }
$sequence_8 = { 52 8d45b8 50 ffd7 8b458c }
$sequence_9 = { bb01000000 d3e3 33c0 85db 7e1e 8d4900 }
condition:
7 of them and filesize < 524288
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c785a0fbffff01000000 53 eb61 e8???????? 33c9 668908 83c002 } | |
| $sequence_1 | hex | { 5e 8be5 5d c20800 c7460c00000001 } | |
| $sequence_2 | hex | { 8908 85db 743b 8b55d8 8b45d4 52 } | |
| $sequence_3 | hex | { 8b4b50 0f94c0 807b1400 899584fbffff 898d8cfbffff } | |
| $sequence_4 | hex | { 57 754c e8???????? 8bf0 } | |
| $sequence_5 | hex | { 8b4dcc 894308 8b45d0 50 } | |
| $sequence_6 | hex | { 885e60 895e58 895e50 895e70 895e54 3bc3 750b } | |
| $sequence_7 | hex | { 8b7508 898650af0100 899648af0100 899644af0100 89964caf0100 } | |
| $sequence_8 | hex | { 52 8d45b8 50 ffd7 8b458c } | |
| $sequence_9 | hex | { bb01000000 d3e3 33c0 85db 7e1e 8d4900 } |
Condition
7 of them and filesize < 524288In plain words (Heuristic)
- The file must be smaller than 524288 (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: 87648f3d-18fe-5762-8343-189a5c1f00dd
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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