YARA · Malpedia signator rules
MALPEDIA_Win_Sdbbot_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: Sdbbot.
It defines 17 patterns (0 text, 17 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sdbbot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sdbbot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7d5002c0-d7fd-50b1-bfb2-c37fa40b27a7"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sdbbot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sdbbot_auto.yar#L1-L171"
= "N/A"
= "de9dc7d37c5bc02342c2b5aae7b7fbfc11a387ed4ab52ccf3403110a8ec7f197"
= 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 = { 7413 8a02 8d4901 8841ff 8d5201 }
$sequence_1 = { 0f8495000000 8b30 8d59f8 0375fc }
$sequence_2 = { 8b5820 8b4024 03de 03c6 8945f0 0f1f4000 }
$sequence_3 = { 0f855effffff e9???????? 81f95d68fa3c 757c }
$sequence_4 = { 8d4901 88440fff 83ea01 75f2 0fb77b14 03fb 0fb75b06 }
$sequence_5 = { d1eb 8945e8 746e 0fb710 }
$sequence_6 = { 8955ec 85d2 0f84ae000000 8b83a0000000 }
$sequence_7 = { ebe2 64a130000000 897df8 8b400c 8b4014 8945fc }
$sequence_8 = { c3 803d????????00 750c c605????????01 e8???????? }
$sequence_9 = { 41b9ffff0000 458d6b03 66660f1f840000000000 498b5750 }
$sequence_10 = { 4c89ac2488000000 488b4818 4c8b7920 4d85ff 0f840e020000 }
$sequence_11 = { 410fb7dd 41bdffff0000 4963413c 428bbc0888000000 }
$sequence_12 = { 33ed 4c89b42480000000 48895c2478 e8???????? 4c8be8 }
$sequence_13 = { 4983c12c 4d85d2 7446 4d03cf 0f1f840000000000 418b49f8 49ffca }
$sequence_14 = { 0f84a7000000 0f1f840000000000 8b4304 85c0 0f8494000000 448b03 }
$sequence_15 = { 66660f1f840000000000 498b5750 33c0 450fb74748 0f1f440000 0fb60a }
$sequence_16 = { 7405 49ffcd ebd9 65488b042560000000 }
condition:
7 of them and filesize < 1015808
}
Strings (17 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 7413 8a02 8d4901 8841ff 8d5201 } | |
| $sequence_1 | hex | { 0f8495000000 8b30 8d59f8 0375fc } | |
| $sequence_2 | hex | { 8b5820 8b4024 03de 03c6 8945f0 0f1f4000 } | |
| $sequence_3 | hex | { 0f855effffff e9???????? 81f95d68fa3c 757c } | |
| $sequence_4 | hex | { 8d4901 88440fff 83ea01 75f2 0fb77b14 03fb 0fb75b06 } | |
| $sequence_5 | hex | { d1eb 8945e8 746e 0fb710 } | |
| $sequence_6 | hex | { 8955ec 85d2 0f84ae000000 8b83a0000000 } | |
| $sequence_7 | hex | { ebe2 64a130000000 897df8 8b400c 8b4014 8945fc } | |
| $sequence_8 | hex | { c3 803d????????00 750c c605????????01 e8???????? } | |
| $sequence_9 | hex | { 41b9ffff0000 458d6b03 66660f1f840000000000 498b5750 } | |
| $sequence_10 | hex | { 4c89ac2488000000 488b4818 4c8b7920 4d85ff 0f840e020000 } | |
| $sequence_11 | hex | { 410fb7dd 41bdffff0000 4963413c 428bbc0888000000 } | |
| $sequence_12 | hex | { 33ed 4c89b42480000000 48895c2478 e8???????? 4c8be8 } | |
| $sequence_13 | hex | { 4983c12c 4d85d2 7446 4d03cf 0f1f840000000000 418b49f8 49ffca } | |
| $sequence_14 | hex | { 0f84a7000000 0f1f840000000000 8b4304 85c0 0f8494000000 448b03 } | |
| $sequence_15 | hex | { 66660f1f840000000000 498b5750 33c0 450fb74748 0f1f440000 0fb60a } | |
| $sequence_16 | hex | { 7405 49ffcd ebd9 65488b042560000000 } |
Condition
7 of them and filesize < 1015808In plain words (Heuristic)
- The file must be smaller than 1015808 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 7d5002c0-d7fd-50b1-bfb2-c37fa40b27a7
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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