YARA · SEKOIA.IO Community
SEKOIA_Downloader_Mac_Smooth_Operator
Detect the Smooth_Operator malware
- Author
- Sekoia.io
- Date
- 2023-07-04
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detect the Smooth_Operator malware
Targets: macOS Mach-O.
It defines 2 patterns (2 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
downloader-mac-smooth-operator.yarDetection Rule License 1.1
rule SEKOIA_Downloader_Mac_Smooth_Operator : FILE
{
meta:
= "Detect the Smooth_Operator malware"
= "Sekoia.io"
= "c132b3f0-f536-4a66-bcf8-2a95c258c414"
= "2023-07-04"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/downloader_mac_smooth_operator.yar#L1-L16"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "031f766d6ab7d94ed7ba4324d4bdfa3fbc11986fba35487a88a1ee3aba090c82"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "%s/.main_storage"
$ = "%s/UpdateAgent"
condition:
uint32be( 0 ) == 0xcafebabe and all of them
}
Strings (2 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "%s/.main_storage" | |
| $ | text | "%s/UpdateAgent" |
Condition
uint32be( 0 ) == 0xcafebabe and all of themIn plain words (Heuristic)
- The file must start with a Mach-O / fat binary magic — a macOS executable.
- All patterns in the rule must match.
Test this rule in your browser
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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: c132b3f0-f536-4a66-bcf8-2a95c258c414
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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