YARA · SEKOIA.IO Community
SEKOIA_Backdoor_Xploitspy_Strings
Detects XploitSPY DEX file
- Author
- Sekoia.io
- Date
- 2022-08-24
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects XploitSPY DEX file
It defines 12 patterns (0 text, 12 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
backdoor-xploitspy-strings.yarDetection Rule License 1.1
rule SEKOIA_Backdoor_Xploitspy_Strings : FILE
{
meta:
= "Detects XploitSPY DEX file"
= "Sekoia.io"
= "0aa86c2e-dba6-4ef4-a47e-f1b43e04f1f3"
= "2022-08-24"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/backdoor_xploitspy_strings.yar#L1-L28"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "eabb1dbeaa8aefc33beb7fb158bbd8ad2c5b848d34c99473704da36a6dc461aa"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = { 04 30 78 43 42 00 }
$ = { 04 30 78 43 4C 00 }
$ = { 04 30 78 43 4F 00 }
$ = { 04 30 78 46 49 00 }
$ = { 04 30 78 47 50 00 }
$ = { 04 30 78 49 4E 00 }
$ = { 04 30 78 4C 4F 00 }
$ = { 04 30 78 4D 49 00 }
$ = { 04 30 78 4E 4F 00 }
$ = { 04 30 78 50 4D 00 }
$ = { 04 30 78 53 4D 00 }
$ = { 04 30 78 57 49 00 }
condition:
uint32be( 0 ) == 0x6465780A and filesize < 1MB and 10 of them
}
Strings (12 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | hex | { 04 30 78 43 42 00 } | |
| $ | hex | { 04 30 78 43 4C 00 } | |
| $ | hex | { 04 30 78 43 4F 00 } | |
| $ | hex | { 04 30 78 46 49 00 } | |
| $ | hex | { 04 30 78 47 50 00 } | |
| $ | hex | { 04 30 78 49 4E 00 } | |
| $ | hex | { 04 30 78 4C 4F 00 } | |
| $ | hex | { 04 30 78 4D 49 00 } | |
| $ | hex | { 04 30 78 4E 4F 00 } | |
| $ | hex | { 04 30 78 50 4D 00 } | |
| $ | hex | { 04 30 78 53 4D 00 } | |
| $ | hex | { 04 30 78 57 49 00 } |
Condition
uint32be( 0 ) == 0x6465780A and filesize < 1MB and 10 of themIn plain words (Heuristic)
- The file must be smaller than 1MB (a cheap guard that skips large files).
- At least 10 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.
References
Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 0aa86c2e-dba6-4ef4-a47e-f1b43e04f1f3
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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