YARA · Malpedia signator rules
MALPEDIA_Win_Htbot_Auto
autogenerated rule brought to you by yara-signator
- 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: Htbot.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-htbot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Htbot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "34a1c769-cdc9-5b0c-a56d-b749e888cc7a"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.htbot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.htbot_auto.yar#L1-L130"
= "N/A"
= "e89f5030a64d3c876947cb664a5c2978a6964eb783bc714e92de04e9d306847a"
= 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 = { 3bcf 7d05 803800 75f1 83c001 8bc8 }
$sequence_1 = { ff15???????? 8bc8 69c9fd430300 81c1c99e2600 f6c101 890d???????? 895c2428 }
$sequence_2 = { 68???????? 8d442420 50 e8???????? 8b442418 51 83c0f0 }
$sequence_3 = { ffd0 8d4c2424 51 8bcd e8???????? c784245804000002000000 8b08 }
$sequence_4 = { 64a300000000 8b5c2428 c744241c00000000 c744241000000000 a1???????? }
$sequence_5 = { 0f8c14010000 51 50 e8???????? 83c408 3bc6 0f8402010000 }
$sequence_6 = { 7f0b 8b4d00 8b01 8b5004 55 ffd2 8b5c2428 }
$sequence_7 = { 56 ffd0 83c510 c644246407 8b442424 892b e9???????? }
$sequence_8 = { ffd0 8b74240c 6a00 6a00 56 68???????? 68???????? }
$sequence_9 = { c744241800000000 740d 8b4c2420 8d4708 50 e8???????? }
condition:
7 of them and filesize < 196608
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 3bcf 7d05 803800 75f1 83c001 8bc8 } | |
| $sequence_1 | hex | { ff15???????? 8bc8 69c9fd430300 81c1c99e2600 f6c101 890d???????? 895c2428 } | |
| $sequence_2 | hex | { 68???????? 8d442420 50 e8???????? 8b442418 51 83c0f0 } | |
| $sequence_3 | hex | { ffd0 8d4c2424 51 8bcd e8???????? c784245804000002000000 8b08 } | |
| $sequence_4 | hex | { 64a300000000 8b5c2428 c744241c00000000 c744241000000000 a1???????? } | |
| $sequence_5 | hex | { 0f8c14010000 51 50 e8???????? 83c408 3bc6 0f8402010000 } | |
| $sequence_6 | hex | { 7f0b 8b4d00 8b01 8b5004 55 ffd2 8b5c2428 } | |
| $sequence_7 | hex | { 56 ffd0 83c510 c644246407 8b442424 892b e9???????? } | |
| $sequence_8 | hex | { ffd0 8b74240c 6a00 6a00 56 68???????? 68???????? } | |
| $sequence_9 | hex | { c744241800000000 740d 8b4c2420 8d4708 50 e8???????? } |
Condition
7 of them and filesize < 196608In plain words (Heuristic)
- The file must be smaller than 196608 (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: 34a1c769-cdc9-5b0c-a56d-b749e888cc7a
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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