YARA · Malpedia signator rules
MALPEDIA_Win_Troll_Stealer_Auto
autogenerated rule brought to you by yara-signator
MalwareTroll StealerMalpedia 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: Troll Stealer.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-troll-stealer-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Troll_Stealer_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "67042aa4-f987-59a8-b96f-b4f01d92e092"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.troll_stealer"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.troll_stealer_auto.yar#L1-L131"
= "N/A"
= "3be2ef26e31631418580720590e6e7731c9fbf927b6cd6fe13353bb3ad220d21"
= 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 = { 0fca 4084d7 453ad6 81f22940ac2d f7d2 f8 41f6c0a2 }
$sequence_1 = { 410fcb 99 410f90c0 48c1c992 41c1c303 66440f4ecc f6d0 }
$sequence_2 = { 53 f9 d3c3 d2cf 310c24 66d3c3 5b }
$sequence_3 = { fecb 6681ebec79 310c24 66440fbbc3 0fbfdd 5b 4863c9 }
$sequence_4 = { f8 f5 d1cd 6641f7c77652 664181fef414 f8 4150 }
$sequence_5 = { 3adf 4184c1 f9 4153 490fbae3a3 4d0f4fdd 310c24 }
$sequence_6 = { c0f328 0adc 410fbfdd 80f18c 80e954 48c1dba3 f6d9 }
$sequence_7 = { d1c8 f9 4084e0 4151 490fbaf94d 310424 }
$sequence_8 = { 40f6c49f 81c11f68a01e f8 f7d1 f8 0fc9 }
$sequence_9 = { 4963fe 311c24 40c0e73d 40d2ef 5f f8 }
condition:
7 of them and filesize < 45868032
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 0fca 4084d7 453ad6 81f22940ac2d f7d2 f8 41f6c0a2 } | |
| $sequence_1 | hex | { 410fcb 99 410f90c0 48c1c992 41c1c303 66440f4ecc f6d0 } | |
| $sequence_2 | hex | { 53 f9 d3c3 d2cf 310c24 66d3c3 5b } | |
| $sequence_3 | hex | { fecb 6681ebec79 310c24 66440fbbc3 0fbfdd 5b 4863c9 } | |
| $sequence_4 | hex | { f8 f5 d1cd 6641f7c77652 664181fef414 f8 4150 } | |
| $sequence_5 | hex | { 3adf 4184c1 f9 4153 490fbae3a3 4d0f4fdd 310c24 } | |
| $sequence_6 | hex | { c0f328 0adc 410fbfdd 80f18c 80e954 48c1dba3 f6d9 } | |
| $sequence_7 | hex | { d1c8 f9 4084e0 4151 490fbaf94d 310424 } | |
| $sequence_8 | hex | { 40f6c49f 81c11f68a01e f8 f7d1 f8 0fc9 } | |
| $sequence_9 | hex | { 4963fe 311c24 40c0e73d 40d2ef 5f f8 } |
Condition
7 of them and filesize < 45868032In plain words (Heuristic)
- The file must be smaller than 45868032 (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: 67042aa4-f987-59a8-b96f-b4f01d92e092
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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