YARA · Malpedia signator rules
MALPEDIA_Win_Targetcompany_Auto
autogenerated rule brought to you by yara-signator
MalwareTargetcompanyMalpedia 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: Targetcompany.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-targetcompany-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Targetcompany_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "11ed9b92-814d-55ea-be2b-897441519d4d"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.targetcompany"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.targetcompany_auto.yar#L1-L133"
= "N/A"
= "4a0748650a37ff73f23e623d657be6fe08f1a469d6884f8d163fadec988603a5"
= 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 = { a5 a5 a5 51 8d75ec e8???????? 59 }
$sequence_1 = { 13da 53 57 e8???????? ff75c4 894618 ff75c0 }
$sequence_2 = { 8b4914 83f9ff 7302 8bd9 2b4508 83c9ff 2bcb }
$sequence_3 = { 0f84a5000000 8d75b4 e8???????? 837dec08 8b4dd8 7303 8d4dd8 }
$sequence_4 = { 50 895c245c 895c2460 895c2454 895c2458 56 e9???????? }
$sequence_5 = { 7639 8b4d0c 8d75f4 894df4 8945f8 e8???????? 0fb70b }
$sequence_6 = { 8d4de8 ffb5c4feffff ffb5c4feffff e8???????? 83c410 53 53 }
$sequence_7 = { 5e c60000 5b c3 55 8bec 83ec34 }
$sequence_8 = { 50 ff36 8d4c2428 e8???????? 83c410 68???????? }
$sequence_9 = { 7205 8b4e04 eb03 8d4e04 50 52 51 }
condition:
7 of them and filesize < 328704
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { a5 a5 a5 51 8d75ec e8???????? 59 } | |
| $sequence_1 | hex | { 13da 53 57 e8???????? ff75c4 894618 ff75c0 } | |
| $sequence_2 | hex | { 8b4914 83f9ff 7302 8bd9 2b4508 83c9ff 2bcb } | |
| $sequence_3 | hex | { 0f84a5000000 8d75b4 e8???????? 837dec08 8b4dd8 7303 8d4dd8 } | |
| $sequence_4 | hex | { 50 895c245c 895c2460 895c2454 895c2458 56 e9???????? } | |
| $sequence_5 | hex | { 7639 8b4d0c 8d75f4 894df4 8945f8 e8???????? 0fb70b } | |
| $sequence_6 | hex | { 8d4de8 ffb5c4feffff ffb5c4feffff e8???????? 83c410 53 53 } | |
| $sequence_7 | hex | { 5e c60000 5b c3 55 8bec 83ec34 } | |
| $sequence_8 | hex | { 50 ff36 8d4c2428 e8???????? 83c410 68???????? } | |
| $sequence_9 | hex | { 7205 8b4e04 eb03 8d4e04 50 52 51 } |
Condition
7 of them and filesize < 328704In plain words (Heuristic)
- The file must be smaller than 328704 (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: 11ed9b92-814d-55ea-be2b-897441519d4d
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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