YARA · SEKOIA.IO Community
SEKOIA_Apt_Implant_Xdealer_Vbs_Launcher_Strings
Detects XDealer VBS Launcher
- Author
- Sekoia.io
- Date
- 2024-03-22
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects XDealer VBS Launcher
It defines 3 patterns (3 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
apt-implant-xdealer-vbs-launcher-strings.yarDetection Rule License 1.1
rule SEKOIA_Apt_Implant_Xdealer_Vbs_Launcher_Strings : FILE
{
meta:
= "Detects XDealer VBS Launcher"
= "Sekoia.io"
= "ebfc8a33-70dc-44d5-bc4a-07afc56f8254"
= "2024-03-22"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_implant_xdealer_vbs_launcher_strings.yar#L1-L17"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "e206189fd21ed7b3bf48a51d955df9055b7f7aa502b7fac52b274cc414adea0d"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$s1 = "Dim objws"
$s2 = "Set objws="
$s3 = "objws.Run \"\"\"C:\\ProgramData\\"
condition:
$s1 at 0 and all of them and filesize < 200
}
Strings (3 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "Dim objws" | |
| $s2 | text | "Set objws=" | |
| $s3 | text | "objws.Run \"\"\"C:\\ProgramData\\" |
Condition
$s1 at 0 and all of them and filesize < 200In plain words (Heuristic)
- The file must be smaller than 200 (a cheap guard that skips large files).
- All patterns in the rule must match.
- Pattern $s1 must be found at offset 0.
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: ebfc8a33-70dc-44d5-bc4a-07afc56f8254
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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