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HARFANGLAB_Supposed_Grasshopper_Downloader

Detects the Nim downloader from the Supposed Grasshopper campaign.

MalwareHarfangLab IOCsNo licence (all rights reserved)Compiles with YARA-X
Author
HarfangLab
Date
2024-06-20
Modified
2026-05-18
Score / Quality
75 / 80

What this rule detects

Detects the Nim downloader from the Supposed Grasshopper campaign.

Targets: Windows PE.

It defines 4 patterns (4 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Rule text not reproduced

This rule comes from HarfangLab IOCs, which does not grant a licence to redistribute its rules (No licence (all rights reserved)). We show its metadata only. Read the original rule upstream:

View the rule on GitHubOpen the repository

Licence & attribution

Author: HarfangLab

Source repository: HarfangLab IOCs @ 3e2b674bf2

Licence: No licence (all rights reserved) (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: e53656b5-a1be-53f0-a4d4-908f24e08bd6

Metadata

contextfile,memory

Tags:FILE

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