turla-venomous-bear

turla-venomous-bear is a skill for Claude Code from PurpleAILAB/Decepticon. It costs 55 tokens per session (10,222 once invoked), scanned A, original, Apache-2.0.

An adversary-emulation profile for Turla, a Russia-attributed cyber-espionage group linked to long-running campaigns against government, military, research, and other organizations.

In plain words
What is it for?
Use it to model or review defenses against techniques associated with Turla, including rootkits, email backdoors, satellite-based command infrastructure, and cross-platform malware.
Why use it?
It organizes Turla’s history, motivations, platforms, malware families, and infrastructure methods into a reference for authorized security work.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to model or review defenses against techniques associated with Turla, including rootkits, email backdoors, satellite-based command infrastructure, and cross-platform malware.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/purpleailab/decepticon/turla
About the project

Decepticon is an autonomous red-team agent that coordinates AI agents, security tools, sandboxes, and supporting services for authorized cybersecurity assessments. Security researchers and red teams can run it through its Docker stack, cloud service, command-line interface, or Python SDK, with the catalogue entries representing its available skills.

PurpleAILAB/Decepticon · 5,463 stars · on GitHub · decepticon.red

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add PurpleAILAB/Decepticon --skill turla
Clone the repo
git clone --depth 1 https://github.com/PurpleAILAB/Decepticon

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for turla-venomous-bear

README.md
[![agentmods](https://agentmods.dev/badge/skills/purpleailab/decepticon/turla/github.svg)](https://agentmods.dev/skills/purpleailab/decepticon/turla)
Your own site
<a href="https://agentmods.dev/skills/purpleailab/decepticon/turla"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/turla/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for turla-venomous-bear

Your own site · 80×15
<a href="https://agentmods.dev/skills/purpleailab/decepticon/turla"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/turla.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 10,222 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to critical

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • critical YARA Match · line 49
    YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).
    Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
  • high YARA Match · line 49
    YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).
    Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
  • high Privilege Escalation · line 85
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00055 $0.10222
Opus 5 $0.00028 $0.05111
Sonnet 5 $0.00011 $0.02044
Haiku 4.5 $0.00006 $0.01022

Measured 9d ago against content hash b5080bab7401, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

turla-venomous-bear scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/decepticon/decepticon/skills/shared/adversary-emulation/turla/SKILL.md · 275 lines

How it starts

The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Turla (Venomous Bear, Secret Blizzard, Waterbug, KRYPTON, Snake) — Adversary Emulation Profile

Turla (MITRE ATT&CK G0010) is one of the most sophisticated and long-running cyber-espionage groups in existence, attributed to Russia's Federal Security Service (FSB) Center 16, operating since at least 2004. Turla has compromised victims in over 50 countries across government, diplomatic, military, defense, education, research, and pharmaceutical sectors. The group is characterized by extraordinary technical depth — from the Snake/Uroburos kernel rootkit and satellite-based C2 hijacking to steganographic email backdoors and the audacious practice of hijacking other nation-state APTs' infrastructure. Turla's tooling spans Windows, Linux, and macOS, with a malware ecosystem (Snake, Carbon, ComRAT, Kazuar, LightNeuron, Penquin, TinyTurla, Lunar toolset) unmatched in breadth and longevity. The 2023 FBI Operation MEDUSA takedown of the Snake peer-to-peer network — spanning 50+ countries over nearly 20 years — underscored the global scale of Turla's operations.

Attribution & motivation

  • Sponsor / nation: Russian Federation — Federal Security Service (FSB), Center 16. CISA has formally attributed Turla / Secret Blizzard to FSB Center 16. The 2023 joint FBI/CISA/NSA advisory (AA23-129A) detailed the Snake malware infrastructure and attributed it to FSB officers. The NSA/NCSC 2019 joint advisory documented Turla's hijacking of Iranian APT infrastructure and attributed it to the same FSB unit.
  • Motivation: Primarily strategic intelligence collection (espionage) — diplomatic, military, political, and scientific intelligence aligned with Russian state interests. Turla is a pure espionage actor with no documented financially motivated or destructive campaigns; its sole objective is persistent, covert access to high-value targets for long-term intelligence gathering.
  • Attribution confidence: High. Backed by U.S. DOJ court filings (Operation MEDUSA), joint CISA/NSA/FBI advisories, NSA/NCSC joint attributions, and consistent named vendor reporting (ESET, Kaspersky, Microsoft, Symantec/Broadcom, Palo Alto Unit 42, Mandiant, Cisco Talos, Accenture).

Read the full file on GitHub · 275 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 275 lines · 55 tokens per session scan A b5080bab7401

Subscribe to this mod's changes

turla-venomous-bear is a skill published in the GitHub repository PurpleAILAB/Decepticon (5,463 stars, last pushed 9d ago), licensed Apache-2.0. It adds 55 tokens to every session and 10,222 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.