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HARFANGLAB_Gamaredon_Gammadrop

Matches Gamaredon GammaDrop VBScript samples used in late 2025 - mid 2026

GenericHarfangLab IOCsNo licence (all rights reserved)Compiles with YARA-X
Author
HarfangLab
Date
2026-05-13
Modified
2026-05-18
Score / Quality
75 / 80

What this rule detects

Matches Gamaredon GammaDrop VBScript samples used in late 2025 - mid 2026

It defines 9 patterns (9 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

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • 62818ae5e305b89b9461536dac1b9daf4cebd99d24e417357e27e2ae4582a704

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: cd8c645a-7b8b-5d3f-923a-f73af9a102c5

Metadata

contextfile

Tags:FILE

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